Scientists were shocked when it was discovered that every living polar bear today can trace their ancestry back to one female brown bear in Ireland.

An amazing storm is raging on Saturn right now, and NASA's Cassini spacecraft has a front-row seat. Already, the orbiter has been able to capture some stunning visual imagery.

Starting 6/30, you can actually see the planet Mercury with the naked eye, a rare treat for stargazers. Check out the west-northwestern horizon for a glimpse of our rocky neighboring planet.

You probably didn't know that Tasmanian Devils are at risk for becoming extinct. Now, researchers are attempting to use new research in DNA sequencing as a last-ditch effort to save the species.

Apparently, getting sleep while stationed on a space station really blows. NASA's trying to change that, by monitoring the sleep habits of their astronauts.

In a slightly melancholic news announcement, NASA has released more details about their last space shuttle mission, which is scheduled to begin this July.

NASA's lunar spacecraft has sent back over 192 Terabytes of data -- including some gorgeous new photos of the moon's terrain.

NASA's Cassini spacecraft has captured exciting new imagery, which shows evidence for the existence of liquid water on one of Saturn's moons.

To help you avoid becoming a creepy albino lightning freak like that kid from "Powder", NASA is going to have one of their scientists available this Thursday to answer any of your lightning-related questions.

Millions of NASA photos need to be scanned for icy objects before the New Horizons spacecraft flies by Pluto in 2015. NASA has teamed up with IceHunters to give you the ability to be part of the search.