For most organisms on Earth, rocks are objects, not food. But for one oddball microbe, desert limestone seems to have been on the menu. Whether or not this mysterious form of life still exists or went ...

The Northern Hemisphere is absorbing more sunlight than the Southern Hemisphere, and clouds can no longer keep the balance.

Strange glass strewn across southern Australia appears to be from a mystery asteroid impact 11 million years ago.

Our solar system has an interstellar visitor. It’s an object called 3I-Atlas, and is just the third interstellar object to ...