Japanese space agency JAXA has successfully launched a mission to visit the moons of Mars — and bring a sample back to Earth.

There are, by various estimates, several trillion planets within what is known as the Local Group of galaxies—our closest galaxy neighbors, including our own Milky Way. Many of these planets are ...

NASA's Pandora satellite has begun observing distant exoplanets to study their atmospheres. This mission aims to separate planetary atmospheric signals from stellar activity. Pandora will repeatedly ...

Add Yahoo as a preferred source to see more of our stories on Google. He came from Zorvex-9, a planet far from Earth. Since crash-landing, the blue alien who calls himself Bloop Hopkins has been on a ...