Scientists studying Saturn’s mysterious moon Enceladus say it may be one of the most promising places in our solar system to ...

On Earth, deep-sea vents may have given rise to the planet’s first life. But nothing of the sort seems to be happening at the ...

What if the Moon was more than just a lifeless rock? Under that bright light, it could be hiding an alien civilization. When ...

New research casts doubt on the prospects for a habitable, active environment beneath the frozen surface of Jupiter’s moon ...

"We're not saying, and we can't say, that there's no life in Europa. What we're saying is that it's a harder proposition, ...