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Space calendar 2025: Here are the moments you won’t want to miss

Space calendar 2025: Here are the moments you won’t want to miss

Though 2025 won’t mark the return of astronauts into deep space as NASA had hoped, launchpads still will be scorching-hot from a procession of robotic spacecraft attempting to land on the moon

How many of these moon landings will succeed? Will the number top the two-ish (one of which made a heckuva comeback) last year? 

Giant commercial rockets, such as SpaceX‘s Starship and Blue Origin’s New Glenn, will likely also have several uncrewed orbital test launches as they iron out the kinks in their hardware. And while people await scientific missions to distant solar system destinations, a few probes will send home close-up pictures of planets as they snag gravitational boosts from flybys. 

Here’s a round-up of space missions and cosmic events just around the bend. Bookmark this calendar and look for updates from Mashable throughout the year. 

SEE ALSO:

NASA leader doubts Elon Musk will push Trump to axe moon rocket

BepiColombo makes final Mercury flyby: Jan. 8

Mercury is the closest planet to the sun, but it’s perhaps the most overlooked of the rocky worlds in the solar system. Hot and harder to reach than Saturn, it hasn’t enjoyed the level of study that other worlds have.

But BepiColombo, a joint mission of the European and Japanese space agencies, seeks to change that. The spacecraft makes its sixth and final flyby on Jan. 8 before returning to enter orbit around the planet in late 2026. Closest approach will take the spacecraft just 160 miles above the surface of Mercury. Mission controllers will release images of the event on Jan. 9.

Two moon landers on one rocket: Jan. 15

Two small uncrewed spacecraft, one of which is carrying several NASA instruments, will try to land on the moon with a boost from the same rocket. 

Both Firefly Aerospace and Japan’s ispace will ride a SpaceX Falcon 9 rocket slated to leave Earth as early as 1:11 a.m. ET Jan. 15. Firefly’s Blue Ghost lander was originally scheduled to lift off in late 2024, and the launch will mark its maiden voyage. The spacecraft is slated to travel for 45 days before trying to touch down in early March. 

Firefly’s flight will be the first Commercial Lunar Payload Services mission of the year. The NASA program has recruited vendors from the private sector to help deliver instruments to the moon and send back crucial data.

Ispace’s new Hakuto-R mission will be its second try, after it ran out of fuel and crashed on the lunar surface in April 2023. The Resilience lander is taking a long way to the moon to save on fuel, arriving about four to five months after launch.

Blue Origin’s first flight for New Glenn: Jan. 16

Amazon founder Jeff Bezos will soon get a chance to see his giant rocket New Glenn launch from Cape Canaveral, Florida. 

His aerospace company Blue Origin started a countdown on Jan. 13, but launch controllers waved off the opportunity when a technical issue arose. The company will try again no earlier than Jan. 16, targeting a three-hour launch window that opens at 1 a.m. ET.

Blue Origin’s goal is to reach orbit, and the company will also try to land its booster on a barge in the Atlantic Ocean so that it can be reused on future flights, though executives admit doing so would be “ambitious” on the first try. 

SpaceX tests upgraded Starship: Jan. 16

SpaceX is preparing to launch another uncrewed Starship test, this time with an upgraded spacecraft and 10 mock satellites to practice a payload deployment in space. 

This SpaceX launch would mark the seventh Starship test and feature a reused engine from the booster returned from the fifth test. Weather-related postponements have made it possible that Starship and Blue Origin’s New Glenn will lift off for these tests on the same day. Starship’s one-hour launch window opens at 4:00 p.m. CT.

NASA moon rover and orbiter delivery: Feb. 26

Intuitive Machines made history last year as the first company to reach the moon intact — though its lander, Odysseus, broke a landing leg and touched down tilted

The Houston-based company is now gearing up for a second moon landing — this time with the Athena lander. The mission, referred to as IM-2 or PRIME-1, will carry a NASA rover. The spacecraft will test a drill and mass spectrometer, a device that identifies the kinds of particles in a substance. Liftoff is targeted for a four-day launch window that opens no earlier than 7:02 p.m. ET Feb. 26.

Another spacecraft, NASA’s Lunar Trailblazer, will also hitch a ride on this flight. The small satellite will orbit the moon to map out the locations of lunar water. 

Europa Clipper flies by Mars: March 1

After a successful October 2024 launch, the Europa Clipper spacecraft has been hurtling through space. It’s on schedule to make its first flyby of Mars on March 1, where it will get a gravity assist to continue its journey. Its closest approach to the Red Planet is expected at 12:57 p.m. ET, when it will zip 550 miles above the Martian surface. The probe won’t arrive at Europa, one of Jupiter’s moons, for its mission until 2030. 

Scientists are intrigued by Europa because they believe it could hold double the water held by Earth’s oceans. Could this small world in the outer solar system have conditions capable of supporting life? If NASA finds that Europa is a habitable place, a second Europa mission could return to determine if there are indeed any inhabitants. 

Firefly attempts moon landing: March 2

Following a successful launch in January, Firefly Aerospace will target a robotic landing in the Mare Crisium region of the moon, an ancient hardened lava flow, no earlier than 2:34 a.m. CT on March 2. Prior to descent onto the surface, NASA and Firefly intend to broadcast commentary, starting at 1:20 a.m. CT that morning. However, the broadcast will not include a live video stream of the spacecraft.

“Our available bandwidth will be dedicated to critical descent operations during landing,” Firefly officials said on X, formerly called Twitter. 

Landing on the moon remains onerous. The moon’s exosphere provides virtually no drag to slow a spacecraft down as it approaches the ground. Furthermore, there are no GPS systems on the moon to help guide a craft to its landing spot.

Blue Ghost shared a ride on a SpaceX Falcon 9 rocket with the Japanese company ispace, which will try to land on the moon after a failed attempt in 2023. Its Resilience lander is taking a longer route than Blue Ghost to save on fuel, arriving in May or June. 

Mashable Light Speed

Intuitive Machines attempts moon landing: March 6

On the heels of Firefly Aerospace’s moon landing attempt, competitor space company Intuitive Machines will try to touch down just four days later.

The landing is slated for 11:32 a.m. CT on March 6. Intuitive Machines will provide live event coverage, starting at 10:30 a.m. CT / 11:30 a.m. ET. The company’s lander, Athena, will attempt to descend on Mons Mouton, a plateau at the moon’s south pole. Before landing, the spacecraft is expected to orbit the moon for about one week.

SpaceX tests Starship following explosion: March 6

Coming off the heels of a Starship test that ended in an explosion and a scrubbed launch on March 3, SpaceX will try to fly the rocket and empty spacecraft again as early as 5:30 p.m. CT March 6. 

The upcoming launch will be the eighth for Starship and feature several hardware changes following January’s mishap. During the previous test, two flashes occurred near one of the ship’s engines shortly after booster separation. A post-flight investigation determined that strong vibrations led to fuel leaks that were too much for the ship’s vents to handle, leading to fires that eventually triggered the flight termination system. 

Launch of new astrophysics observatory: March 11

NASA intends to launch an astrophysics observatory to create a map of the entire sky in 3D. The mission, SPHEREx (Spectro-Photometer for the History of the Universe, Epoch of Reionization and Ices Explorer), will orbit Earth while studying hundreds of millions of stars and galaxies, showing them in 102 invisible “colors.” 

One of the main goals of the mission is to learn more about cosmic inflation, a brief but crucial phase of the Big Bang that contributed to the universe’s expansion. It will launch on a SpaceX Falcon 9 rocket from Vandenberg Space Force Base in California as early as 11:10 p.m. ET on March 11. Live launch coverage will begin at 10:15 p.m. ET. NASA’s PUNCH (Polarimeter to Unify the Corona and Heliosphere) probe is hitching a ride on the same rocket and will be the first to image the sun’s corona and solar wind together to better understand them as a connected system.  

European spacecraft Hera flies by Mars: March 12

Back in 2022, NASA deliberately crashed a spacecraft into a harmless asteroid to practice thwarting a space rock, should a hazardous one ever be on a collision course with Earth.

The European Space Agency is providing a follow-up to that test, known as Hera. The mission’s spacecraft launched in October 2024 and will rendezvous with Dimorphos, the slammed asteroid, in 2026. But this March, it will also have a quick pop-in with Mars, closest approach at 7:51 a.m. ET, and one of the Red Planet’s two moons, Deimos. Mission controllers will use the opportunity to collect data on the Martian moon. The agency plans to host a webcast image release from the flyby at 6:50 a.m. ET the next day, March 13.

Boeing astronaut crew returns home: March 18

Two astronauts whose eight-day visit to the International Space Station turned into a more than eight-month layover are expected to return to Earth in March. 

NASA astronauts Butch Wilmore and Suni Williams have been waiting for their ride since the space agency decided not to send them home on the spaceship they rode in on. That test vehicle, Boeing’s Starliner, landed empty without any problems, but NASA hadn’t wanted to risk it after the capsule experienced propulsion issues in space. 

The pair was supposed to return in a SpaceX Dragon capsule in February, but NASA announced at the end of 2024 that the flight would likely be pushed back to March. Wilmore and Williams, who were integrated into Crew-9, will fly back to Earth after the next crew arrives at the space station, allowing for a brief hand-off period. Crew-10 launched from Cape Canaveral, Florida, on March 14. Due to weather concerns later in the week, NASA has decided to move up the Crew-9 return. Their spaceship is expected to undock at 1:05 a.m. ET on March 18. A splashdown landing would follow at about 5:57 p.m. ET that evening.

Katy Perry and others head to space: April 14

Blue Origin will send an all-female crew to the edge of space in its next civilian astronaut mission. The flight will be the eleventh carrying passengers on the New Shepard rocket to the Kármán line, where Earth’s atmosphere and outer space meet.

Katy Perry, CBS MorningsGayle King, and Jeff Bezos’ fiancée Lauren Sánchez will join former NASA rocket scientist Aisha Bowe, bioastronautics scientist and social activist Amanda Nguyen, and fashion designer-turned-film producer Kerianne Flynn on the trip. The NS-31 mission will target liftoff from the company’s private West Texas launch pad at 8:30 a.m. CT / 9:30 a.m. ET on April 14. Check back here for details about the webcast as the launch approaches. 

Lucy spacecraft flies by asteroid: April 20

NASA launched the Lucy spacecraft on a grand 12-year asteroid tour last fall with plans to fly by several space rocks that share Jupiter’s orbit. On April 20, Lucy will encounter a small main-belt asteroid, Donaldjohanson, as a sort of test sequence before it visits seven Trojan asteroids. The asteroid, called DJ for short, is only 2.5 miles wide, with an extremely slow rotation that takes more than 10 days to complete. 

Peak of Lyrids meteor shower: April 21-22

Meteor showers happen every year or at regular intervals as Earth passes through the dusty wake of previous comets. Each time a comet zips through the inner solar system, the sun boils off some of its surface, leaving behind a trail of debris. When the planet intersects with the old comet detritus, the result can be a spectacular show, with sometimes up to hundreds of meteors visible per hour. The debris that creates the Lyrid meteor shower originates from comet Thatcher. The Lyrids, best viewed from the Northern Hemisphere, will be active from April 17 to 26.

Peak of Eta Aquariids meteor shower: May 3-4

The Eta Aquariids meteor shower, best viewed from the southern tropics, produces strong “persistent trains” of shooting stars. The shower is the first of two each year created by Halley’s Comet debris. The celestial event will be active from April 20 to May 21.

SpaceX’s third Starship test of 2025: May 27

The upcoming launch will be the ninth for Starship and feature several hardware changes following two earlier mishaps this year. SpaceX intends to use a recycled booster for the first time and test releasing mock satellites into space. The company also wants to test the spacecraft’s heat shield during a fiery reentry into Earth’s atmosphere.

Japanese company tries moon landing: June 5

After a failed attempt in April 2023, Japan’s ispace will try to land an uncrewed robotic spacecraft on the moon and deliver a rover to its surface. 

The Hakuto-R mission is gearing up for a landing near the center of Mare Frigoris at 3:17 p.m. ET on June 5 (It will be June 6 for Japan). Livestream coverage will begin about one hour earlier, at 2:10 p.m. ET, with English translation. If conditions change, the company has identified three other potential sites for its lander, dubbed Resilience. The alternative locations have different landing dates and times. 

Private astronauts fly to ISS: June 11

Private astronauts will launch to the International Space Station for Axiom Space’s fourth mission. Four crew members will launch from Cape Canaveral, Florida, as early as 8 a.m. ET on June 11. The commercial space company has said this mission will consist of about 60 scientific studies on the effects of spaceflight on the body and how to improve health and medical treatments on Earth.

When Axiom flew its first private mission in 2022, it redefined the word “astronaut.” For decades, that title was reserved for government space pilots and crew. More recently, uber-rich space tourists earned the distinction by breaching Earth’s atmosphere. But with Axiom’s private mission came a third possible description: Someone privately trained and sent into space to perform commercial scientific research. Axiom crews receive 750 to over 1,000 hours of training. 

Axiom plans to provide a live launch broadcast on axiom.space/live, beginning at 5:55 a.m. ET.

Peak of Delta Aquariids meteor shower: July 29-30

The Delta Aquariids are another shower best observed from the southern tropics. Conditions will be favorable for viewing meteors in the morning. Astronomers suspect the interacting debris causing the event came from the strange Comet Machholz. The event will be active from July 18 to Aug. 12. 

Peak of Perseids meteor shower: Aug. 12-13

Perseids meteors streak across the sky over Bishop, California, in 2024.
Credit: NASA / Preston Dyches

The popular Perseids, made up of remnants of comet 109P/Swift-Tuttle, is usually a spectacular show for the Northern Hemisphere. The meteor shower is active from July 17 to Aug. 23. But don’t get your hopes up this year: Experts say the waning gibbous moon, more than 80 percent full, will allow only the brightest meteors to be seen. 

Europe’s Juice spacecraft flies by Venus: Aug. 31

The European Space Agency’s so-called Juice mission is scheduled to fly by Venus on Aug. 31, though exact times and distances will be determined closer to the event. “Juice” is a wonky acronym for Jupiter Icy Moons Explorer.

The mission will study Jupiter’s moons, including Europa, Callisto, and particularly Ganymede. These moons have intrigued scientists for years because they’re thought to have liquid oceans trapped beneath icy shells. Before reaching Jupiter, the spacecraft will make flybys of Earth and Venus to get enough energy to slingshot to the outer solar system, reaching Jupiter in 2031.

Astrobotic attempts moon landing, again: fall

Astrobotic Technologies tried to become the first commercial company to land on the moon last year, but it lost its chance just a few hours into the flight because of a fuel leak. The company will try again this fall with its Griffin lander. 

Originally, this mission was supposed to carry a NASA rover to drill for ice at the lunar south pole. But VIPER — short for Volatiles Investigating Polar Exploration Rover — was canceled due to cost overruns. Griffin will still launch without the rover as a flight demonstration of the lander and engines.

Peak of Orionid meteor shower: Oct. 22-23

The Orionids meteor shower marks the return of activity caused by Halley’s Comet debris. In recent years, the displays have been pretty lackluster, but a waning crescent moon rising near dawn means moonlight won’t obscure the shower in 2025. The celestial event will run from Oct. 2 to Nov. 12.

Peak of Southern Taurids meteor shower: Nov. 3-4

The Southern Taurids make up a complex meteor shower. Usually, the displays are weak, but Taurid meteors are more numerous sometimes. Known as a “swarm year,” 2025’s event could offer more fireballs as Earth plows through a group of pebble-sized fragments from the Comet Encke. But given the moon’s phase, there’s a good chance moonlight will interfere with viewing most Taurids. Activity will go from Oct. 13 to Nov. 27. 

Dream Chaser spaceplane sits on a runway in the dark

A Dream Chaser spaceplane, Tenacity, is expected to launch to the International Space Station in 2025.
Credit: Sierra Space

Peak of the Leonids meteor shower: Nov. 16-17

The Leonids are some of the fastest-moving meteors, traveling up to 44 miles per second. The debris that causes the show comes from Comet Tempel-Tuttle, but the displays are usually pretty weak. The exceptions are years when the showers become so-called “meteor storms,” but that won’t likely happen again until perhaps 2035. The shower will be active from Nov. 3 to Dec. 2. 

Peak of Geminids meteor shower: Dec. 12-13

Widely regarded as the best meteor shower of the year, the Geminids can be seen from most any part of the world, especially the Northern Hemisphere. The Geminids are denser meteors, allowing stargazers to see them as low as 29 miles above ground before the cosmic dust burns up. The shower will be active between Dec. 1 and 21.

This year the moon will have a waning crescent phase, which rises around 2 a.m. local time. Prior to that, views should be moon-free. You could glimpse bright meteors by facing a direction with the moon at your back, according to the American Meteor Society.

Peak of Ursids meteor shower: Dec. 21-22

The Ursid meteors are caused by debris from Tuttle’s Comet, which orbits every 13 years. This shower, often overlooked because of its close timing to Christmas, can only be observed in the Northern Hemisphere. Because of a new moon at the shower’s peak, moonlight won’t interfere with the show. The event will be active from Dec. 16 to 26. 

Other possible missions in 2025

  • A NASA-funded science mission seeks to get to the bottom of how solar radiation strips away the tattered Martian atmosphere. Called Escapade, the mission will involve two Mars orbiters built by Rocket Lab. The flight was previously scheduled for October aboard Blue Origin’s New Glenn rocket, but the inaugural flight was delayed. NASA and Blue Origin are now in talks for a new launch date for that mission in 2025.

  • Sierra Space has been working on a spacecraft with the nostalgia of NASA’s space shuttle program. Dream Chaser, a cargo space plane capable of runway landings, is set to launch for the first time to the ISS for a resupply mission sometime this year

  • Following Intuitive Machines’ second mission in early 2025, the company will shoot for another later in 2025 or early in 2026. If successful, the lunar landing mission, IM-3 or PRISM, will deploy rovers and study a so-called “lunar swirl.”

  • NASA is teaming up with India’s space agency on a mission to study Earth’s land and ice, involving the NISAR satellite, which will scan all of the planet’s surfaces twice every 12 days to measure changes. The satellite will launch from the Indian Space Research Organisation’s space port, the Satish Dhawan Space Centre, on India’s southeastern coast. It was supposed to liftoff this spring, but neither agency has provided an update on the mission’s status.



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Like it or not, data centers are now intrinsic to our modern lives, supporting not just the AI boom but healthcare, banking, government services, and other essential sectors. Reliable data center operation depends on effective cooling, which is already a major challenge as many methods require huge inputs of water or energy. To make matters worse, new research suggests that one of our cheapest, most efficient cooling strategies could stop working in a warmer world.

The findings, published Monday in the journal Scientific Reports, show that rising temperatures and humidity levels threaten the viability of direct air free cooling, an energy-efficient, waterless technique that pulls outside air in to cool data center servers. Over the past 45 years, weather conditions that limit direct air cooling have become significantly more common, particularly across the tropics and the southeastern United States, according to the study. As the global temperature continues to rise, this problem is only going to get worse.

“We found that periods of time when temperature and humidity exceed recommended operating thresholds for direct air free cooling are becoming more frequent and lasting longer in many regions,” lead author Christina Karamperidou, a professor of atmospheric sciences professor at the University of Hawaii at Mānoa, said in a statement. “This will reduce the availability of air free cooling for a growing number of data centers globally.”

Climate-driven cooling constraints

For direct air free cooling, the American Society of Heating, Refrigerating and Air-Conditioning Engineers recommends keeping the air entering a data center between 64 and 81 degrees Fahrenheit (18 and 27 degrees Celsius), with 10% to 70% relative humidity and a dew point below 59 degrees F (15 degrees C). Air that is hotter and more humid than this won’t cool the servers effectively and could corrode metal components.

To investigate how this cooling method will function in a warmer, wetter world, Karamperidou and her colleagues used a combination of high-resolution hourly weather observations, climate model simulations, and global records of data center locations. With this data, they evaluated how often environmental conditions exceeded recommended operating limits for direct air free cooling over the past 45 years and in future climate scenarios.

The researchers found that the prevalence of weather conditions that limit direct air free cooling has increased significantly in recent decades. Even regions that have only seen modest long-term increases in heat and humidity are experiencing longer daily exceedance events, and the share of data centers exposed to conditions that limit direct air free cooling availability for at least one quarter of the year is rising.

Interestingly, the findings suggest that the hottest, most humid days are intensifying faster than average days, indicating that environmental stress on direct air free cooling systems is become more and more concentrated in rare, highly consequential events.

“From an operational perspective, those worst-day conditions often drive contingency planning, system overrides, redundancy requirements, and reliability decisions,” Karamperidou said. “This suggests that infrastructure planning may need to account not only for average environmental conditions but also for how the most stressful days are changing over time.”

By 2050, the number of hours that exceed temperature and humidity limits for direct air free cooling is protected to increase under high greenhouse gas emissions scenarios, according to the researchers. In most regions globally, the average number of hours per day during which this cooling strategy is constrained increases by more than two hours per day, the findings show.

A troubling feedback loop

While this study focuses on how weather can influence data centers, it’s important to remember that data centers can influence local weather too. These facilities dissipate a lot of heat, and research has shown that they can actually create heat islands within a 6-mile radius of themselves.

Karamperidou and her colleagues did not account for this effect, so the direct air free cooling constraints they identified may be conservative, they write in their report. Still, they emphasize that their findings do not mean that this cooling strategy is necessarily infeasible in warm, humid regions. Rather, the study shows that the window of feasibility for direct air free cooling is narrowing due to climate change.

“Alternative strategies—including indirect evaporative cooling, liquid cooling, and hybrid architectures—can partially offset these constraints, albeit with distinct trade-offs in water use, system complexity, and operational design,” the researchers write.

Indeed, as one of the simplest, cheapest, and most efficient cooling strategies becomes increasingly unreliable, data center operators may be forced to turn to more energy- and water-intensive methods. This, in turn, could put added strain on electric grids and water resources that are themselves strained by climate change. Adapting data centers to a warming world without exacerbating the impacts of rising global temperatures will require innovative solutions.

#Cheapest #Cool #Data #Centers #Wont #Work #Warmer #WorldAI,data centers,extreme heat,Global warming">The Cheapest Way to Cool Data Centers Won’t Work in a Warmer World 
                Like it or not, data centers are now intrinsic to our modern lives, supporting not just the AI boom but healthcare, banking, government services, and other essential sectors. Reliable data center operation depends on effective cooling, which is already a major challenge as many methods require huge inputs of water or energy. To make matters worse, new research suggests that one of our cheapest, most efficient cooling strategies could stop working in a warmer world. The findings, published Monday in the journal Scientific Reports, show that rising temperatures and humidity levels threaten the viability of direct air free cooling, an energy-efficient, waterless technique that pulls outside air in to cool data center servers. Over the past 45 years, weather conditions that limit direct air cooling have become significantly more common, particularly across the tropics and the southeastern United States, according to the study. As the global temperature continues to rise, this problem is only going to get worse. “We found that periods of time when temperature and humidity exceed recommended operating thresholds for direct air free cooling are becoming more frequent and lasting longer in many regions,” lead author Christina Karamperidou, a professor of atmospheric sciences professor at the University of Hawaii at Mānoa, said in a statement. “This will reduce the availability of air free cooling for a growing number of data centers globally.”

 Climate-driven cooling constraints For direct air free cooling, the American Society of Heating, Refrigerating and Air-Conditioning Engineers recommends keeping the air entering a data center between 64 and 81 degrees Fahrenheit (18 and 27 degrees Celsius), with 10% to 70% relative humidity and a dew point below 59 degrees F (15 degrees C). Air that is hotter and more humid than this won’t cool the servers effectively and could corrode metal components.

 To investigate how this cooling method will function in a warmer, wetter world, Karamperidou and her colleagues used a combination of high-resolution hourly weather observations, climate model simulations, and global records of data center locations. With this data, they evaluated how often environmental conditions exceeded recommended operating limits for direct air free cooling over the past 45 years and in future climate scenarios. The researchers found that the prevalence of weather conditions that limit direct air free cooling has increased significantly in recent decades. Even regions that have only seen modest long-term increases in heat and humidity are experiencing longer daily exceedance events, and the share of data centers exposed to conditions that limit direct air free cooling availability for at least one quarter of the year is rising.

 Interestingly, the findings suggest that the hottest, most humid days are intensifying faster than average days, indicating that environmental stress on direct air free cooling systems is become more and more concentrated in rare, highly consequential events. “From an operational perspective, those worst-day conditions often drive contingency planning, system overrides, redundancy requirements, and reliability decisions,” Karamperidou said. “This suggests that infrastructure planning may need to account not only for average environmental conditions but also for how the most stressful days are changing over time.” By 2050, the number of hours that exceed temperature and humidity limits for direct air free cooling is protected to increase under high greenhouse gas emissions scenarios, according to the researchers. In most regions globally, the average number of hours per day during which this cooling strategy is constrained increases by more than two hours per day, the findings show.

 A troubling feedback loop While this study focuses on how weather can influence data centers, it’s important to remember that data centers can influence local weather too. These facilities dissipate a lot of heat, and research has shown that they can actually create heat islands within a 6-mile radius of themselves. Karamperidou and her colleagues did not account for this effect, so the direct air free cooling constraints they identified may be conservative, they write in their report. Still, they emphasize that their findings do not mean that this cooling strategy is necessarily infeasible in warm, humid regions. Rather, the study shows that the window of feasibility for direct air free cooling is narrowing due to climate change.

 “Alternative strategies—including indirect evaporative cooling, liquid cooling, and hybrid architectures—can partially offset these constraints, albeit with distinct trade-offs in water use, system complexity, and operational design,” the researchers write. Indeed, as one of the simplest, cheapest, and most efficient cooling strategies becomes increasingly unreliable, data center operators may be forced to turn to more energy- and water-intensive methods. This, in turn, could put added strain on electric grids and water resources that are themselves strained by climate change. Adapting data centers to a warming world without exacerbating the impacts of rising global temperatures will require innovative solutions.      #Cheapest #Cool #Data #Centers #Wont #Work #Warmer #WorldAI,data centers,extreme heat,Global warming

AI boom but healthcare, banking, government services, and other essential sectors. Reliable data center operation depends on effective cooling, which is already a major challenge as many methods require huge inputs of water or energy. To make matters worse, new research suggests that one of our cheapest, most efficient cooling strategies could stop working in a warmer world.

The findings, published Monday in the journal Scientific Reports, show that rising temperatures and humidity levels threaten the viability of direct air free cooling, an energy-efficient, waterless technique that pulls outside air in to cool data center servers. Over the past 45 years, weather conditions that limit direct air cooling have become significantly more common, particularly across the tropics and the southeastern United States, according to the study. As the global temperature continues to rise, this problem is only going to get worse.

“We found that periods of time when temperature and humidity exceed recommended operating thresholds for direct air free cooling are becoming more frequent and lasting longer in many regions,” lead author Christina Karamperidou, a professor of atmospheric sciences professor at the University of Hawaii at Mānoa, said in a statement. “This will reduce the availability of air free cooling for a growing number of data centers globally.”

Climate-driven cooling constraints

For direct air free cooling, the American Society of Heating, Refrigerating and Air-Conditioning Engineers recommends keeping the air entering a data center between 64 and 81 degrees Fahrenheit (18 and 27 degrees Celsius), with 10% to 70% relative humidity and a dew point below 59 degrees F (15 degrees C). Air that is hotter and more humid than this won’t cool the servers effectively and could corrode metal components.

To investigate how this cooling method will function in a warmer, wetter world, Karamperidou and her colleagues used a combination of high-resolution hourly weather observations, climate model simulations, and global records of data center locations. With this data, they evaluated how often environmental conditions exceeded recommended operating limits for direct air free cooling over the past 45 years and in future climate scenarios.

The researchers found that the prevalence of weather conditions that limit direct air free cooling has increased significantly in recent decades. Even regions that have only seen modest long-term increases in heat and humidity are experiencing longer daily exceedance events, and the share of data centers exposed to conditions that limit direct air free cooling availability for at least one quarter of the year is rising.

Interestingly, the findings suggest that the hottest, most humid days are intensifying faster than average days, indicating that environmental stress on direct air free cooling systems is become more and more concentrated in rare, highly consequential events.

“From an operational perspective, those worst-day conditions often drive contingency planning, system overrides, redundancy requirements, and reliability decisions,” Karamperidou said. “This suggests that infrastructure planning may need to account not only for average environmental conditions but also for how the most stressful days are changing over time.”

By 2050, the number of hours that exceed temperature and humidity limits for direct air free cooling is protected to increase under high greenhouse gas emissions scenarios, according to the researchers. In most regions globally, the average number of hours per day during which this cooling strategy is constrained increases by more than two hours per day, the findings show.

A troubling feedback loop

While this study focuses on how weather can influence data centers, it’s important to remember that data centers can influence local weather too. These facilities dissipate a lot of heat, and research has shown that they can actually create heat islands within a 6-mile radius of themselves.

Karamperidou and her colleagues did not account for this effect, so the direct air free cooling constraints they identified may be conservative, they write in their report. Still, they emphasize that their findings do not mean that this cooling strategy is necessarily infeasible in warm, humid regions. Rather, the study shows that the window of feasibility for direct air free cooling is narrowing due to climate change.

“Alternative strategies—including indirect evaporative cooling, liquid cooling, and hybrid architectures—can partially offset these constraints, albeit with distinct trade-offs in water use, system complexity, and operational design,” the researchers write.

Indeed, as one of the simplest, cheapest, and most efficient cooling strategies becomes increasingly unreliable, data center operators may be forced to turn to more energy- and water-intensive methods. This, in turn, could put added strain on electric grids and water resources that are themselves strained by climate change. Adapting data centers to a warming world without exacerbating the impacts of rising global temperatures will require innovative solutions.

#Cheapest #Cool #Data #Centers #Wont #Work #Warmer #WorldAI,data centers,extreme heat,Global warming">The Cheapest Way to Cool Data Centers Won’t Work in a Warmer World The Cheapest Way to Cool Data Centers Won’t Work in a Warmer World 
                Like it or not, data centers are now intrinsic to our modern lives, supporting not just the AI boom but healthcare, banking, government services, and other essential sectors. Reliable data center operation depends on effective cooling, which is already a major challenge as many methods require huge inputs of water or energy. To make matters worse, new research suggests that one of our cheapest, most efficient cooling strategies could stop working in a warmer world. The findings, published Monday in the journal Scientific Reports, show that rising temperatures and humidity levels threaten the viability of direct air free cooling, an energy-efficient, waterless technique that pulls outside air in to cool data center servers. Over the past 45 years, weather conditions that limit direct air cooling have become significantly more common, particularly across the tropics and the southeastern United States, according to the study. As the global temperature continues to rise, this problem is only going to get worse. “We found that periods of time when temperature and humidity exceed recommended operating thresholds for direct air free cooling are becoming more frequent and lasting longer in many regions,” lead author Christina Karamperidou, a professor of atmospheric sciences professor at the University of Hawaii at Mānoa, said in a statement. “This will reduce the availability of air free cooling for a growing number of data centers globally.”

 Climate-driven cooling constraints For direct air free cooling, the American Society of Heating, Refrigerating and Air-Conditioning Engineers recommends keeping the air entering a data center between 64 and 81 degrees Fahrenheit (18 and 27 degrees Celsius), with 10% to 70% relative humidity and a dew point below 59 degrees F (15 degrees C). Air that is hotter and more humid than this won’t cool the servers effectively and could corrode metal components.

 To investigate how this cooling method will function in a warmer, wetter world, Karamperidou and her colleagues used a combination of high-resolution hourly weather observations, climate model simulations, and global records of data center locations. With this data, they evaluated how often environmental conditions exceeded recommended operating limits for direct air free cooling over the past 45 years and in future climate scenarios. The researchers found that the prevalence of weather conditions that limit direct air free cooling has increased significantly in recent decades. Even regions that have only seen modest long-term increases in heat and humidity are experiencing longer daily exceedance events, and the share of data centers exposed to conditions that limit direct air free cooling availability for at least one quarter of the year is rising.

 Interestingly, the findings suggest that the hottest, most humid days are intensifying faster than average days, indicating that environmental stress on direct air free cooling systems is become more and more concentrated in rare, highly consequential events. “From an operational perspective, those worst-day conditions often drive contingency planning, system overrides, redundancy requirements, and reliability decisions,” Karamperidou said. “This suggests that infrastructure planning may need to account not only for average environmental conditions but also for how the most stressful days are changing over time.” By 2050, the number of hours that exceed temperature and humidity limits for direct air free cooling is protected to increase under high greenhouse gas emissions scenarios, according to the researchers. In most regions globally, the average number of hours per day during which this cooling strategy is constrained increases by more than two hours per day, the findings show.

 A troubling feedback loop While this study focuses on how weather can influence data centers, it’s important to remember that data centers can influence local weather too. These facilities dissipate a lot of heat, and research has shown that they can actually create heat islands within a 6-mile radius of themselves. Karamperidou and her colleagues did not account for this effect, so the direct air free cooling constraints they identified may be conservative, they write in their report. Still, they emphasize that their findings do not mean that this cooling strategy is necessarily infeasible in warm, humid regions. Rather, the study shows that the window of feasibility for direct air free cooling is narrowing due to climate change.

 “Alternative strategies—including indirect evaporative cooling, liquid cooling, and hybrid architectures—can partially offset these constraints, albeit with distinct trade-offs in water use, system complexity, and operational design,” the researchers write. Indeed, as one of the simplest, cheapest, and most efficient cooling strategies becomes increasingly unreliable, data center operators may be forced to turn to more energy- and water-intensive methods. This, in turn, could put added strain on electric grids and water resources that are themselves strained by climate change. Adapting data centers to a warming world without exacerbating the impacts of rising global temperatures will require innovative solutions.      #Cheapest #Cool #Data #Centers #Wont #Work #Warmer #WorldAI,data centers,extreme heat,Global warming

Like it or not, data centers are now intrinsic to our modern lives, supporting not just the AI boom but healthcare, banking, government services, and other essential sectors. Reliable data center operation depends on effective cooling, which is already a major challenge as many methods require huge inputs of water or energy. To make matters worse, new research suggests that one of our cheapest, most efficient cooling strategies could stop working in a warmer world.

The findings, published Monday in the journal Scientific Reports, show that rising temperatures and humidity levels threaten the viability of direct air free cooling, an energy-efficient, waterless technique that pulls outside air in to cool data center servers. Over the past 45 years, weather conditions that limit direct air cooling have become significantly more common, particularly across the tropics and the southeastern United States, according to the study. As the global temperature continues to rise, this problem is only going to get worse.

“We found that periods of time when temperature and humidity exceed recommended operating thresholds for direct air free cooling are becoming more frequent and lasting longer in many regions,” lead author Christina Karamperidou, a professor of atmospheric sciences professor at the University of Hawaii at Mānoa, said in a statement. “This will reduce the availability of air free cooling for a growing number of data centers globally.”

Climate-driven cooling constraints

For direct air free cooling, the American Society of Heating, Refrigerating and Air-Conditioning Engineers recommends keeping the air entering a data center between 64 and 81 degrees Fahrenheit (18 and 27 degrees Celsius), with 10% to 70% relative humidity and a dew point below 59 degrees F (15 degrees C). Air that is hotter and more humid than this won’t cool the servers effectively and could corrode metal components.

To investigate how this cooling method will function in a warmer, wetter world, Karamperidou and her colleagues used a combination of high-resolution hourly weather observations, climate model simulations, and global records of data center locations. With this data, they evaluated how often environmental conditions exceeded recommended operating limits for direct air free cooling over the past 45 years and in future climate scenarios.

The researchers found that the prevalence of weather conditions that limit direct air free cooling has increased significantly in recent decades. Even regions that have only seen modest long-term increases in heat and humidity are experiencing longer daily exceedance events, and the share of data centers exposed to conditions that limit direct air free cooling availability for at least one quarter of the year is rising.

Interestingly, the findings suggest that the hottest, most humid days are intensifying faster than average days, indicating that environmental stress on direct air free cooling systems is become more and more concentrated in rare, highly consequential events.

“From an operational perspective, those worst-day conditions often drive contingency planning, system overrides, redundancy requirements, and reliability decisions,” Karamperidou said. “This suggests that infrastructure planning may need to account not only for average environmental conditions but also for how the most stressful days are changing over time.”

By 2050, the number of hours that exceed temperature and humidity limits for direct air free cooling is protected to increase under high greenhouse gas emissions scenarios, according to the researchers. In most regions globally, the average number of hours per day during which this cooling strategy is constrained increases by more than two hours per day, the findings show.

A troubling feedback loop

While this study focuses on how weather can influence data centers, it’s important to remember that data centers can influence local weather too. These facilities dissipate a lot of heat, and research has shown that they can actually create heat islands within a 6-mile radius of themselves.

Karamperidou and her colleagues did not account for this effect, so the direct air free cooling constraints they identified may be conservative, they write in their report. Still, they emphasize that their findings do not mean that this cooling strategy is necessarily infeasible in warm, humid regions. Rather, the study shows that the window of feasibility for direct air free cooling is narrowing due to climate change.

“Alternative strategies—including indirect evaporative cooling, liquid cooling, and hybrid architectures—can partially offset these constraints, albeit with distinct trade-offs in water use, system complexity, and operational design,” the researchers write.

Indeed, as one of the simplest, cheapest, and most efficient cooling strategies becomes increasingly unreliable, data center operators may be forced to turn to more energy- and water-intensive methods. This, in turn, could put added strain on electric grids and water resources that are themselves strained by climate change. Adapting data centers to a warming world without exacerbating the impacts of rising global temperatures will require innovative solutions.

#Cheapest #Cool #Data #Centers #Wont #Work #Warmer #WorldAI,data centers,extreme heat,Global warming

The end of the biggest World Cup ever is almost here. Following 100 matches, there are just four teams left and four more games to play.

The tournament has been hosted by three countries: Mexico, Canada, and the US. All of those host countries are now out of the running. The final teams are France, Spain, England, and Argentina. Those teams will play two more semifinal games, another game to determine who gets third place and a final match to end it all.

Going into this year’s World Cup, FIFA anticipated that it would be the most watched tournament in the organization’s history. As the tournament moved into the quarterfinals earlier this month, FIFA noted that more than more than 6.2 million people had attended matches in person, “while millions more follow the action across digital platforms, broadcast, and fan experiences in host cities and around the world.”

You can find the full schedule, which defaults to your local time zone, on the FIFA website.

Here’s how to watch the final games.

Semifinals

France vs. Spain, at Dallas Stadium in Arlington, Texas — 3 pm ET on Tuesday July 14

England vs. Argentina, at Atlanta Stadium — 3 pm ET on Wednesday July 15

Third Place Playoff

The two losing teams of the semifinal matches will face off for the title of third place at 5 pm ET on Saturday, July 18, in the Miami Stadium in Miami, Florida.

Final

The World Cup final game is at 3 pm ET on Sunday, July 19, in the New York/New Jersey Stadium.

The game will also feature the first-ever Super Bowl–style halftime show in World Cup history, with performances from Justin Bieber, Madonna, Shakira, BTS, and Gustavo Dudamel. As the name implies, that will likely land right in the middle of the broadcast, so aim to watch somewhere around 4 pm ET on July 19.

Where to Stream

If you have satellite TV or cable service, you can watch the final kickoffs live on TV via Fox Sports in the US. The games are also available on the FoxOne streaming service for $20 per month.

FIFA has partnered with YouTube as its “preferred partner” for streaming the games. You’ll need YouTube TV’s sports plan, which is currently $55 per month. Other paid options include Fubo ($46 per month) and Hulu’s live sports option ($90 per month).

In partnership with Telemundo, Peacock is streaming all of the games in Spanish. You can find all the official broadcasters on the FIFA website.

New Competition

This World Cup has been huge, competition-wise, as it is the first to include 48 teams in the tournament instead of the 32 for past World Cups. Given the increased number of teams, the structure for how the competition played out was different from past World Cups. Countries were first sorted into groups (labeled with letters A–L) and played out games in the First Stage within those groups.

Winners of those matches went on to duke it out in the stage called the Round of 32, then got whittled down in a Round of 16. After that, the winners moved on to the quarterfinals, which wrapped up last weekend.

#Watch #World #Cup #Semifinals #Finalssports,football,how-to,world cup 2026,soccer">How to Watch the 2026 World Cup Semifinals and FinalsThe end of the biggest World Cup ever is almost here. Following 100 matches, there are just four teams left and four more games to play.The tournament has been hosted by three countries: Mexico, Canada, and the US. All of those host countries are now out of the running. The final teams are France, Spain, England, and Argentina. Those teams will play two more semifinal games, another game to determine who gets third place and a final match to end it all.Going into this year’s World Cup, FIFA anticipated that it would be the most watched tournament in the organization’s history. As the tournament moved into the quarterfinals earlier this month, FIFA noted that more than more than 6.2 million people had attended matches in person, “while millions more follow the action across digital platforms, broadcast, and fan experiences in host cities and around the world.”You can find the full schedule, which defaults to your local time zone, on the FIFA website.Here’s how to watch the final games.SemifinalsFrance vs. Spain, at Dallas Stadium in Arlington, Texas — 3 pm ET on Tuesday July 14England vs. Argentina, at Atlanta Stadium — 3 pm ET on Wednesday July 15Third Place PlayoffThe two losing teams of the semifinal matches will face off for the title of third place at 5 pm ET on Saturday, July 18, in the Miami Stadium in Miami, Florida.FinalThe World Cup final game is at 3 pm ET on Sunday, July 19, in the New York/New Jersey Stadium.The game will also feature the first-ever Super Bowl–style halftime show in World Cup history, with performances from Justin Bieber, Madonna, Shakira, BTS, and Gustavo Dudamel. As the name implies, that will likely land right in the middle of the broadcast, so aim to watch somewhere around 4 pm ET on July 19.Where to StreamIf you have satellite TV or cable service, you can watch the final kickoffs live on TV via Fox Sports in the US. The games are also available on the FoxOne streaming service for  per month.FIFA has partnered with YouTube as its “preferred partner” for streaming the games. You’ll need YouTube TV’s sports plan, which is currently  per month. Other paid options include Fubo ( per month) and Hulu’s live sports option ( per month).In partnership with Telemundo, Peacock is streaming all of the games in Spanish. You can find all the official broadcasters on the FIFA website.New CompetitionThis World Cup has been huge, competition-wise, as it is the first to include 48 teams in the tournament instead of the 32 for past World Cups. Given the increased number of teams, the structure for how the competition played out was different from past World Cups. Countries were first sorted into groups (labeled with letters A–L) and played out games in the First Stage within those groups.Winners of those matches went on to duke it out in the stage called the Round of 32, then got whittled down in a Round of 16. After that, the winners moved on to the quarterfinals, which wrapped up last weekend.#Watch #World #Cup #Semifinals #Finalssports,football,how-to,world cup 2026,soccer

World Cup ever is almost here. Following 100 matches, there are just four teams left and four more games to play.

The tournament has been hosted by three countries: Mexico, Canada, and the US. All of those host countries are now out of the running. The final teams are France, Spain, England, and Argentina. Those teams will play two more semifinal games, another game to determine who gets third place and a final match to end it all.

Going into this year’s World Cup, FIFA anticipated that it would be the most watched tournament in the organization’s history. As the tournament moved into the quarterfinals earlier this month, FIFA noted that more than more than 6.2 million people had attended matches in person, “while millions more follow the action across digital platforms, broadcast, and fan experiences in host cities and around the world.”

You can find the full schedule, which defaults to your local time zone, on the FIFA website.

Here’s how to watch the final games.

Semifinals

France vs. Spain, at Dallas Stadium in Arlington, Texas — 3 pm ET on Tuesday July 14

England vs. Argentina, at Atlanta Stadium — 3 pm ET on Wednesday July 15

Third Place Playoff

The two losing teams of the semifinal matches will face off for the title of third place at 5 pm ET on Saturday, July 18, in the Miami Stadium in Miami, Florida.

Final

The World Cup final game is at 3 pm ET on Sunday, July 19, in the New York/New Jersey Stadium.

The game will also feature the first-ever Super Bowl–style halftime show in World Cup history, with performances from Justin Bieber, Madonna, Shakira, BTS, and Gustavo Dudamel. As the name implies, that will likely land right in the middle of the broadcast, so aim to watch somewhere around 4 pm ET on July 19.

Where to Stream

If you have satellite TV or cable service, you can watch the final kickoffs live on TV via Fox Sports in the US. The games are also available on the FoxOne streaming service for $20 per month.

FIFA has partnered with YouTube as its “preferred partner” for streaming the games. You’ll need YouTube TV’s sports plan, which is currently $55 per month. Other paid options include Fubo ($46 per month) and Hulu’s live sports option ($90 per month).

In partnership with Telemundo, Peacock is streaming all of the games in Spanish. You can find all the official broadcasters on the FIFA website.

New Competition

This World Cup has been huge, competition-wise, as it is the first to include 48 teams in the tournament instead of the 32 for past World Cups. Given the increased number of teams, the structure for how the competition played out was different from past World Cups. Countries were first sorted into groups (labeled with letters A–L) and played out games in the First Stage within those groups.

Winners of those matches went on to duke it out in the stage called the Round of 32, then got whittled down in a Round of 16. After that, the winners moved on to the quarterfinals, which wrapped up last weekend.

#Watch #World #Cup #Semifinals #Finalssports,football,how-to,world cup 2026,soccer">How to Watch the 2026 World Cup Semifinals and Finals

The end of the biggest World Cup ever is almost here. Following 100 matches, there are just four teams left and four more games to play.

The tournament has been hosted by three countries: Mexico, Canada, and the US. All of those host countries are now out of the running. The final teams are France, Spain, England, and Argentina. Those teams will play two more semifinal games, another game to determine who gets third place and a final match to end it all.

Going into this year’s World Cup, FIFA anticipated that it would be the most watched tournament in the organization’s history. As the tournament moved into the quarterfinals earlier this month, FIFA noted that more than more than 6.2 million people had attended matches in person, “while millions more follow the action across digital platforms, broadcast, and fan experiences in host cities and around the world.”

You can find the full schedule, which defaults to your local time zone, on the FIFA website.

Here’s how to watch the final games.

Semifinals

France vs. Spain, at Dallas Stadium in Arlington, Texas — 3 pm ET on Tuesday July 14

England vs. Argentina, at Atlanta Stadium — 3 pm ET on Wednesday July 15

Third Place Playoff

The two losing teams of the semifinal matches will face off for the title of third place at 5 pm ET on Saturday, July 18, in the Miami Stadium in Miami, Florida.

Final

The World Cup final game is at 3 pm ET on Sunday, July 19, in the New York/New Jersey Stadium.

The game will also feature the first-ever Super Bowl–style halftime show in World Cup history, with performances from Justin Bieber, Madonna, Shakira, BTS, and Gustavo Dudamel. As the name implies, that will likely land right in the middle of the broadcast, so aim to watch somewhere around 4 pm ET on July 19.

Where to Stream

If you have satellite TV or cable service, you can watch the final kickoffs live on TV via Fox Sports in the US. The games are also available on the FoxOne streaming service for $20 per month.

FIFA has partnered with YouTube as its “preferred partner” for streaming the games. You’ll need YouTube TV’s sports plan, which is currently $55 per month. Other paid options include Fubo ($46 per month) and Hulu’s live sports option ($90 per month).

In partnership with Telemundo, Peacock is streaming all of the games in Spanish. You can find all the official broadcasters on the FIFA website.

New Competition

This World Cup has been huge, competition-wise, as it is the first to include 48 teams in the tournament instead of the 32 for past World Cups. Given the increased number of teams, the structure for how the competition played out was different from past World Cups. Countries were first sorted into groups (labeled with letters A–L) and played out games in the First Stage within those groups.

Winners of those matches went on to duke it out in the stage called the Round of 32, then got whittled down in a Round of 16. After that, the winners moved on to the quarterfinals, which wrapped up last weekend.

#Watch #World #Cup #Semifinals #Finalssports,football,how-to,world cup 2026,soccer

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