This week in science: the generational effects of nuclear radiation discovered in the children of Chernobyl cleanup workers; ...

This week in science: Mysterious molecules on Mars are tricky to explain without life; a compound that cuts cholesterol as a ...

Dec. 13, 2025: Our weekly roundup of the latest science in the news, as well as a few fascinating articles to keep you entertained over the weekend. When you purchase through links on our site, we may ...

See the latest The Weirdest Thing I Learned This Week stories from Popular Science. See news, trends, tips, reviews and more at Popular Science.

This week in science: sleep found to be a key factor in life expectancy; cats meow twice as much at men as at women; a quick-acting relief for depression; and much more! Not getting enough sleep has ...

This week in science: fossilized 'mammoth' bones found to be from a completely different animal; NASA returns Space Station astronauts early after a medical issue; a surprising benefit to having red ...