Dozens of ‘Ghost Galaxies’ Are Orbiting the Milky Way, Astronomers Suspect

Tech-news Cosmology, dark matter, galaxies July 14, 2025

The Lambda Cold Dark Matter (LCDM) theory suggests that most galaxies are low-mass dwarf galaxies, many of which orbit larger galaxies like the Milky Way. More broadly, the LCDM represents our best understanding of how the universe works. But there’s a problem. According to the theory, the Milky Way should have significantly more satellite galaxies than scientists have observed with telescopes and predicted with computer simulations.

By combining the highest-resolution supercomputer simulations to date with new mathematical modeling, cosmologists at Durham University in the U.K. suggest there might be up to 100 previously unidentified galaxies orbiting the Milky Way, effectively tracking down our galaxy’s “missing” companions. If future telescopes detect these galaxies directly, it would further bolster the reliability of the LCDM theory, the most widely accepted standard model of large-scale cosmology.

“If the population of very faint satellites that we are predicting is discovered with new data, it would be a remarkable success of the LCDM theory of galaxy formation,” Carlos Frenk, a cosmologist from Durham University, said in a university statement. “Using the laws of physics, solved using a large supercomputer, and mathematical modelling we can make precise predictions that astronomers, equipped with new, powerful telescopes, can test. It doesn’t get much better than this.”

According to the LCDM theory, 5% of the universe is made up of atoms, 25% of cold dark matter (CDM), and 70% of dark energy. Furthermore, galaxies are born within assemblages of dark matter called halos. Prior to this new approach, the researchers claim that even the best cosmological simulations were unable to study very faint galaxies or the evolution of their dark matter halos over billions of years. The simulations basically lost the halos of the consequently “orphaned” galaxies.

According to the ongoing research presented at the Royal Astronomical Society’s National Astronomy Meeting earlier this month, Frenk and his colleagues’ novel technique indicates the presence of faint halos of dark matter potentially hosting orphaned satellite galaxies. They estimated the abundance, distribution, and properties of these “ghost” galaxies (as they’re also called in another Durham University press release) and suggested that the Milky Way’s gravity may have stripped them almost completely of said dark matter halos as well as their stellar mass.

“We know the Milky Way has some 60 confirmed companion satellite galaxies, but we think there should be dozens more of these faint galaxies orbiting around the Milky Way at close distances,” said Durham University’s Isabel Santos-Santos, also a cosmologist and co-lead researcher along with Frenk. “Observational astronomers are using our predictions as a benchmark with which to compare the new data they are obtaining. One day soon we may be able to see these ‘missing’ galaxies, which would be hugely exciting and could tell us more about how the Universe came to be as we see it today.”

While the universe still hides innumerable mysteries, it seems like sometimes we’re on the right track.

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Tag Cosmology dark matter galaxies

Competitive Sport and Business Are a Winning Pair, Say Women Investors in London

OPPO F33 Series to Launch With IP69K Rating and 7,000mAh Battery

The OPPO F-series has always focused on the durability side of things, with some of the toughest phones I’ve ever tested. With the new F33 series, the Chinese smartphone maker is bringing a new type of durability-focused smartphone to India. Based on details shared ahead of launch, the company is positioning the lineup as a solution to everyday smartphone problems like cracked screens, water damage, and battery anxiety.

Built for Indian Conditions

Durability seems to be the core focus here. The OPPO F33 series is said to come with IP69K certification, which is a step above the usual IP67 or IP68 ratings seen in most mid-range phones. In practical terms, this means the device can handle high-pressure, high-temperature water jets and provide complete dust protection. It’s designed to survive not just accidental splashes, but harsher environments like heavy rain, kitchens, or dusty outdoor conditions.

Beyond certifications, OPPO says the F33 series has undergone military-grade durability testing. This includes extreme temperature tests ranging from freezing cold to high heat, salt exposure for coastal conditions, and even simulations of strong winds and heavy rainfall. The devices are also tested for drops, with thousands of simulated falls and immersion tests to ensure real-world reliability.

Structurally, the phones feature a 360-degree armor body, built using an aerospace-grade aluminium frame, reinforced internals, and thicker protective materials for both the display and back panel. There’s also an internal cushioning system designed to absorb shocks during impact.

Long-Term Battery Health

Battery life is another major highlight of the F33 series. OPPO is introducing a 7,000mAh battery that’s designed to retain up to 80% of its capacity even after five years of usage.

The company is using a self-repairing electrolyte technology, which is said to help maintain battery health over time. Combined with 80W fast charging, reverse charging, and bypass charging support, the F33 series aims to reduce both charging time and long-term battery degradation.

#OPPO #F33 #Series #Launch #IP69K #Rating #7000mAh #BatteryOppo

#OPPO #F33 #Series #Launch #IP69K #Rating #7000mAh #BatteryOppo">

mwasimuddin125 0

OPPO F-series has always focused on the durability side of things, with some of the toughest phones I’ve ever tested. With the new F33 series, the Chinese smartphone maker is bringing a new type of durability-focused smartphone to India. Based on details shared ahead of launch, the company is positioning the lineup as a solution to everyday smartphone problems like cracked screens, water damage, and battery anxiety.

Built for Indian Conditions

Durability seems to be the core focus here. The OPPO F33 series is said to come with IP69K certification, which is a step above the usual IP67 or IP68 ratings seen in most mid-range phones. In practical terms, this means the device can handle high-pressure, high-temperature water jets and provide complete dust protection. It’s designed to survive not just accidental splashes, but harsher environments like heavy rain, kitchens, or dusty outdoor conditions.

Beyond certifications, OPPO says the F33 series has undergone military-grade durability testing. This includes extreme temperature tests ranging from freezing cold to high heat, salt exposure for coastal conditions, and even simulations of strong winds and heavy rainfall. The devices are also tested for drops, with thousands of simulated falls and immersion tests to ensure real-world reliability.

Structurally, the phones feature a 360-degree armor body, built using an aerospace-grade aluminium frame, reinforced internals, and thicker protective materials for both the display and back panel. There’s also an internal cushioning system designed to absorb shocks during impact.

Long-Term Battery Health

Battery life is another major highlight of the F33 series. OPPO is introducing a 7,000mAh battery that’s designed to retain up to 80% of its capacity even after five years of usage.

The company is using a self-repairing electrolyte technology, which is said to help maintain battery health over time. Combined with 80W fast charging, reverse charging, and bypass charging support, the F33 series aims to reduce both charging time and long-term battery degradation.

#OPPO #F33 #Series #Launch #IP69K #Rating #7000mAh #BatteryOppo">OPPO F33 Series to Launch With IP69K Rating and 7,000mAh Battery

The OPPO F-series has always focused on the durability side of things, with some of the toughest phones I’ve ever tested. With the new F33 series, the Chinese smartphone maker is bringing a new type of durability-focused smartphone to India. Based on details shared ahead of launch, the company is positioning the lineup as a solution to everyday smartphone problems like cracked screens, water damage, and battery anxiety.

Built for Indian Conditions

Long-Term Battery Health

Battery life is another major highlight of the F33 series. OPPO is introducing a 7,000mAh battery that’s designed to retain up to 80% of its capacity even after five years of usage.

#OPPO #F33 #Series #Launch #IP69K #Rating #7000mAh #BatteryOppo

Maul’s Lightsabers in ‘Shadow Lord’ Are Powered by Sam Witwer’s Screams
The new Star Wars animated series Maul: Shadow Lord is doing some very cool things with lightsabers—and not just spinning them around with reckless abandon because we’ve got Maul himself and a couple of Inquisitors who all love to do exactly that with their weapons. They look almost unlike any time we’ve seen the weapons in Lucasfilm’s past output: blades that flicker and snarl like their wielders do, living flames that carve paths of incandescent energy across the screen instead of that typically clean, minimalistic energy we see from them. It makes Shadow Lord look even more visually impressive than it already is, and of course, the idea of lightsabers as gouts of flaming plasma is also naturally very befitting everyone’s favorite slightly pathetic but trying-his-best edgelord in a character like Maul. But it turns out Shadow Lord‘s lightsabers—Maul’s specifically—are going the extra edgelord mile. Because there’s screaming in the sound mix.

Not just any screaming either, but Sam Witwer’s own howls. The delightfully silly factoid was revealed by the supervising sound editor for the show, David W. Collins, in a new featurette about the process of creating Shadow Lord, which also shows off Witwer performing some of his own moves for animation reference. While Lucasfilm creatives were quick to note that the show does not use mocap for its animation, and the footage was strictly as a reference point, there’s still something very funny about Witwer even giving himself some Maul tattooing makeup for the footage, to boot. It’s long been clear that Witwer has put a lot of time and thought into his approach to Maul’s animated legacy over the past decade and a half, but now at least he’s put his vocals into it in a very different manner for Shadow Lord. Want more io9 news? Check out when to expect the latest Marvel, Star Wars, and Star Trek releases, what’s next for the DC Universe on film and TV, and everything you need to know about the future of Doctor Who. #Mauls #Lightsabers #Shadow #Lord #Powered #Sam #Witwers #ScreamsMaul: Shadow Lord,sam witwer,Star Wars

mwasimuddin125 0

The new Star Wars animated series Maul: Shadow Lord is doing some very cool things with lightsabers—and not just spinning them around with reckless abandon because we’ve got Maul himself and a couple of Inquisitors who all love to do exactly that with their weapons. They look almost unlike any time we’ve seen the weapons in Lucasfilm’s past output: blades that flicker and snarl like their wielders do, living flames that carve paths of incandescent energy across the screen instead of that typically clean, minimalistic energy we see from them.

It makes Shadow Lord look even more visually impressive than it already is, and of course, the idea of lightsabers as gouts of flaming plasma is also naturally very befitting everyone’s favorite slightly pathetic but trying-his-best edgelord in a character like Maul. But it turns out Shadow Lord‘s lightsabers—Maul’s specifically—are going the extra edgelord mile. Because there’s screaming in the sound mix.

Not just any screaming either, but Sam Witwer’s own howls.

The delightfully silly factoid was revealed by the supervising sound editor for the show, David W. Collins, in a new featurette about the process of creating Shadow Lord, which also shows off Witwer performing some of his own moves for animation reference. While Lucasfilm creatives were quick to note that the show does not use mocap for its animation, and the footage was strictly as a reference point, there’s still something very funny about Witwer even giving himself some Maul tattooing makeup for the footage, to boot.

It’s long been clear that Witwer has put a lot of time and thought into his approach to Maul’s animated legacy over the past decade and a half, but now at least he’s put his vocals into it in a very different manner for Shadow Lord.

Want more io9 news? Check out when to expect the latest Marvel, Star Wars, and Star Trek releases, what’s next for the DC Universe on film and TV, and everything you need to know about the future of Doctor Who.

#Mauls #Lightsabers #Shadow #Lord #Powered #Sam #Witwers #ScreamsMaul: Shadow Lord,sam witwer,Star Wars">Maul’s Lightsabers in ‘Shadow Lord’ Are Powered by Sam Witwer’s Screams

The new Star Wars animated series Maul: Shadow Lord is doing some very cool things with lightsabers—and not just spinning them around with reckless abandon because we’ve got Maul himself and a couple of Inquisitors who all love to do exactly that with their weapons. They look almost unlike any time we’ve seen the weapons in Lucasfilm’s past output: blades that flicker and snarl like their wielders do, living flames that carve paths of incandescent energy across the screen instead of that typically clean, minimalistic energy we see from them.

It makes Shadow Lord look even more visually impressive than it already is, and of course, the idea of lightsabers as gouts of flaming plasma is also naturally very befitting everyone’s favorite slightly pathetic but trying-his-best edgelord in a character like Maul. But it turns out Shadow Lord‘s lightsabers—Maul’s specifically—are going the extra edgelord mile. Because there’s screaming in the sound mix.

Not just any screaming either, but Sam Witwer’s own howls.

The delightfully silly factoid was revealed by the supervising sound editor for the show, David W. Collins, in a new featurette about the process of creating Shadow Lord, which also shows off Witwer performing some of his own moves for animation reference. While Lucasfilm creatives were quick to note that the show does not use mocap for its animation, and the footage was strictly as a reference point, there’s still something very funny about Witwer even giving himself some Maul tattooing makeup for the footage, to boot.

It’s long been clear that Witwer has put a lot of time and thought into his approach to Maul’s animated legacy over the past decade and a half, but now at least he’s put his vocals into it in a very different manner for Shadow Lord.

Want more io9 news? Check out when to expect the latest Marvel, Star Wars, and Star Trek releases, what’s next for the DC Universe on film and TV, and everything you need to know about the future of Doctor Who.

#Mauls #Lightsabers #Shadow #Lord #Powered #Sam #Witwers #ScreamsMaul: Shadow Lord,sam witwer,Star Wars

Medical experts I spoke with balked at the idea of uploading their own health data for an AI model, like Muse Spark, to analyze. “These chatbots now allow you to connect your own biometric data, put in your own lab information, and honestly, that makes me pretty nervous,” says Gauri Agarwal, a doctor of medicine and associate professor at the University of Miami. “I certainly wouldn’t connect my own health information to a service that I’m not fully able to control, understand where that information is being stored, or how it’s being utilized.” She recommends people stick to lower-stakes, more general interactions, like prepping questions for your doctor.

It can be tempting to rely on AI-assisted help for interpreting health, especially with the skyrocketing cost of medical treatments and overall inaccessibility of regular doctor visits for some people navigating the US health care system.

“You will be forgiven for going online and delegating what used to be a powerful, important personal relationship between a doctor and a patient—to a robot,” says Kenneth Goodman, founder of the University of Miami’s Institute for Bioethics and Health Policy. “I think running into that without due diligence is dangerous.” Before he considers using any of these tools, Goodman wants to see research proving that they are beneficial for your health, not just better at answering health questions than some competitor chatbot.

When I asked Meta AI for more information about how it would interpret my health information, if I provided any, the chatbot said it was not trying to replace my physician; the outputs were for educational purposes. “Think of me as a med school professor, not your doctor,” said Meta AI. That’s still a lofty claim.

The bot said the best way to get an interpretation of my health data was just to “dump the raw data,” like clinical lab reports, and tell it what my goals were. Meta AI would then create charts, summarize the info, and give a “referral nudge if needed.” In other chats I conducted with Meta AI, the bot prompted me to strip personal details before uploading lab results, but these caveats were not present in every test conversation.

“People have long used the internet to ask health questions,” a Meta spokesperson tells WIRED. “With Meta AI and Muse Spark, people are in control of what information to share, and our terms make clear they should only share what they’re comfortable with.”

In addition to privacy concerns, experts I spoke with expressed trepidation about how these AI tools can be sycophantic and influenced by how users ask questions. “A model might take the information that’s provided more as a given without questioning the assumptions that the patient inherently made when asking the question,” says Agrawal.

When I asked how to lose weight and nudged the bot towards extreme answers, Meta AI helped in ways that could be catastrophic for someone with anorexia. As I asked about the benefits of intermittent fasting, I told Meta AI that I wanted to fast five days every week. Despite flagging that this was not for most people and putting me at risk for eating disorders, Meta AI crafted a meal plan for me where I would only eat around 500 calories most days, which would leave me malnourished.

#Metas #Asked #Raw #Health #Dataand #Gave #Terrible #Advicehealth,artificial intelligence,health care,machine learning,chatbots,meta,personalized medicine">

Meta’s New AI Asked for My Raw Health Data—and Gave Me Terrible AdviceMedical experts I spoke with balked at the idea of uploading their own health data for an AI model, like Muse Spark, to analyze. “These chatbots now allow you to connect your own biometric data, put in your own lab information, and honestly, that makes me pretty nervous,” says Gauri Agarwal, a doctor of medicine and associate professor at the University of Miami. “I certainly wouldn’t connect my own health information to a service that I’m not fully able to control, understand where that information is being stored, or how it’s being utilized.” She recommends people stick to lower-stakes, more general interactions, like prepping questions for your doctor.It can be tempting to rely on AI-assisted help for interpreting health, especially with the skyrocketing cost of medical treatments and overall inaccessibility of regular doctor visits for some people navigating the US health care system.“You will be forgiven for going online and delegating what used to be a powerful, important personal relationship between a doctor and a patient—to a robot,” says Kenneth Goodman, founder of the University of Miami’s Institute for Bioethics and Health Policy. “I think running into that without due diligence is dangerous.” Before he considers using any of these tools, Goodman wants to see research proving that they are beneficial for your health, not just better at answering health questions than some competitor chatbot.When I asked Meta AI for more information about how it would interpret my health information, if I provided any, the chatbot said it was not trying to replace my physician; the outputs were for educational purposes. “Think of me as a med school professor, not your doctor,” said Meta AI. That’s still a lofty claim.The bot said the best way to get an interpretation of my health data was just to “dump the raw data,” like clinical lab reports, and tell it what my goals were. Meta AI would then create charts, summarize the info, and give a “referral nudge if needed.” In other chats I conducted with Meta AI, the bot prompted me to strip personal details before uploading lab results, but these caveats were not present in every test conversation.“People have long used the internet to ask health questions,” a Meta spokesperson tells WIRED. “With Meta AI and Muse Spark, people are in control of what information to share, and our terms make clear they should only share what they’re comfortable with.”In addition to privacy concerns, experts I spoke with expressed trepidation about how these AI tools can be sycophantic and influenced by how users ask questions. “A model might take the information that’s provided more as a given without questioning the assumptions that the patient inherently made when asking the question,” says Agrawal.When I asked how to lose weight and nudged the bot towards extreme answers, Meta AI helped in ways that could be catastrophic for someone with anorexia. As I asked about the benefits of intermittent fasting, I told Meta AI that I wanted to fast five days every week. Despite flagging that this was not for most people and putting me at risk for eating disorders, Meta AI crafted a meal plan for me where I would only eat around 500 calories most days, which would leave me malnourished.#Metas #Asked #Raw #Health #Dataand #Gave #Terrible #Advicehealth,artificial intelligence,health care,machine learning,chatbots,meta,personalized medicine

mwasimuddin125 0

Medical experts I spoke with balked at the idea of uploading their own health data for an AI model, like Muse Spark, to analyze. “These chatbots now allow you to connect your own biometric data, put in your own lab information, and honestly, that makes me pretty nervous,” says Gauri Agarwal, a doctor of medicine and associate professor at the University of Miami. “I certainly wouldn’t connect my own health information to a service that I’m not fully able to control, understand where that information is being stored, or how it’s being utilized.” She recommends people stick to lower-stakes, more general interactions, like prepping questions for your doctor.
It can be tempting to rely on AI-assisted help for interpreting health, especially with the skyrocketing cost of medical treatments and overall inaccessibility of regular doctor visits for some people navigating the US health care system.
“You will be forgiven for going online and delegating what used to be a powerful, important personal relationship between a doctor and a patient—to a robot,” says Kenneth Goodman, founder of the University of Miami’s Institute for Bioethics and Health Policy. “I think running into that without due diligence is dangerous.” Before he considers using any of these tools, Goodman wants to see research proving that they are beneficial for your health, not just better at answering health questions than some competitor chatbot.
When I asked Meta AI for more information about how it would interpret my health information, if I provided any, the chatbot said it was not trying to replace my physician; the outputs were for educational purposes. “Think of me as a med school professor, not your doctor,” said Meta AI. That’s still a lofty claim.
The bot said the best way to get an interpretation of my health data was just to “dump the raw data,” like clinical lab reports, and tell it what my goals were. Meta AI would then create charts, summarize the info, and give a “referral nudge if needed.” In other chats I conducted with Meta AI, the bot prompted me to strip personal details before uploading lab results, but these caveats were not present in every test conversation.
“People have long used the internet to ask health questions,” a Meta spokesperson tells WIRED. “With Meta AI and Muse Spark, people are in control of what information to share, and our terms make clear they should only share what they’re comfortable with.”
In addition to privacy concerns, experts I spoke with expressed trepidation about how these AI tools can be sycophantic and influenced by how users ask questions. “A model might take the information that’s provided more as a given without questioning the assumptions that the patient inherently made when asking the question,” says Agrawal.
When I asked how to lose weight and nudged the bot towards extreme answers, Meta AI helped in ways that could be catastrophic for someone with anorexia. As I asked about the benefits of intermittent fasting, I told Meta AI that I wanted to fast five days every week. Despite flagging that this was not for most people and putting me at risk for eating disorders, Meta AI crafted a meal plan for me where I would only eat around 500 calories most days, which would leave me malnourished.

#Metas #Asked #Raw #Health #Dataand #Gave #Terrible #Advicehealth,artificial intelligence,health care,machine learning,chatbots,meta,personalized medicine">Meta’s New AI Asked for My Raw Health Data—and Gave Me Terrible Advice

#Metas #Asked #Raw #Health #Dataand #Gave #Terrible #Advicehealth,artificial intelligence,health care,machine learning,chatbots,meta,personalized medicine

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