Are we alone in the universe? Indeed, it could not be a question that has captured the human imagination more than this one, ...

Mining operations risk destroying habitats that may harbor life forms critical for understanding the boundaries of biology ...

Observations by the James Webb space telescope find possible biological activity on a giant planet 124 light-years from Earth ...

It's uncertain whether such life forms would resemble Earth life at all. Alien life might manifest in surprising and unrecognizable ways: while life on Earth is carbon-based, cellular, and reliant ...