Learn how glaciers melt and contribute to seas rising in this animated explainer from NASA's Jet Propulsion Laboratory.

Folks, it's official: the object that astronomers recently spotted blowing through the outer solar system came from ...

Curiosity, NASA's Mars rover, accidentally cracked open a seemingly ordinary rock, revealing an unexpected yellow substance ...

NASA said the comet will make its closest approach to the sun in late October, scooting between the orbits of Mars and Earth ...