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 ...

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

A new study reveals Jupiter's moon Europa likely lacks active geology on its seafloor, reducing chances of life in its vast ...

Scientists are proposing a new source of fuel for potential alien life on Europa: Radioactive elements seeping out of rocks and into the moon’s ocean, where it could generate enough energy to support ...

Saturn's giant moon Titan may not have a vast underground ocean after all. Titan may instead hold deep layers of ice and slush more akin to Earth’s polar seas, with pockets of melted water where life ...

"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, ...