Outer Space

Why astronomers are excited about carbon dioxide and methane in the atmosphere of an alien world
Spending time in space can harm the human body − but scientists are working to mitigate these risks before we go to Mars
Astronomers spot the first “bounce” in our Universe
Evidence suggests the world’s largest known asteroid impact structure is buried deep in southeast Australia
SpinLaunch will hurl payloads into orbit, cutting the cost of launch by 20x
“Ghostly” neutrinos help us see our Milky Way as never before
Why aliens are likely to be AI
5 revolutionary cosmic ideas that turned out to be wrong
Time has some fundamental differences from every other dimension