Americans are becoming more open to the idea that aliens have visited Earth, according to a series of polls that show belief in alien visitation has been steadily on the rise since 2012. Moreover, ...

Beneath Triton's frozen crust of nitrogen ice, scientists believe a vast subsurface ocean could be hiding and with it, the potential for alien life. This video explores the cutting-edge science behind ...

When astronomers search for life beyond Earth, they usually start with a familiar question: could a particular exoplanet support biology like ours? Liquid water, mild temperatures, and Earth-like ...

The best reason to send humans to Mars isn’t for guts or glory—or the construction of colonies to safeguard against existential Earth-bound risks. Instead it’s to answer a single, simple question: Is ...