EXPERT INTERVIEW — It was a shock that few saw coming – and which brought memories of South Korea’s days as a military dictatorship, a generation ago: President Yoon Suk Yeol declared martial law late Tuesday, in an announcement that stunned the nation, sparking outrage from politicians, large-scale protests, and a...

A small asteroid hit Earth’s atmosphere and produced a spectacular fireball in the sky across the far east of Russia in the early hours of Wednesday morning. People from the remote Russian republic of Sakha, in northeastern Siberia, stood out in the snow to catch a glimpse of the phenomenon,...