While the SETI Institute is investigating interstellar space for extraterrestrial life, we may find it in our own cosmic backyard. It is unlikely to be anything other than microbial life, but even that would be a seismic, perception-altering discovery.

NASA just launched a spacecraft the size of a basketball court towards Jupiter's moon Europa. Here's what will happen over the next 10 years.

A NASA spacecraft has set sail for Jupiter and its moon Europa, one of the best bets for finding life beyond Earth.

It won't land, but the robotic spacecraft will fly as close as 16 miles to the moon's frozen surface to probe oceans of liquid water beneath.

A NASA spacecraft has blasted off on a quest to explore Jupiter's moon Europa and reveal whether its hidden ocean might hold the keys to life.

The spacecraft will be NASA's first dedicated to studying a distant ice-covered moon in our solar system to determine whether it could be habitable for life.