Organisms on Earth living deep underground or at the bottom of the sea may give us an idea what alien life without a ...

"Our observations indicate the presence of powerful iron winds, probably fuelled by a hot spot in the atmosphere." ...

This means most M-Earths are probably tidally locked, which is when one hemisphere always faces the sun while the other always faces away. A tidally locked planet's year is the same length as its day.

That's not insignificant -- it's about 6% of Planet's annual revenue. But it's probably not enough to move the needle on ...

Researchers have found evidence suggesting that our planet may have once had a ring system around 466 million years ago.

Astronomers have found evidence of a process that supports an alternative, more rapid approach to planetary formation, more ...

Yep, Earth will temporarily get a second moon. It’s called 2024 PT5 and it’s been called a “mini moon” by astronomers. 2024 ...