Scientists watched a solar flare grow from tiny magnetic sparks into a violent plasma-raining avalanche on the Sun.

For decades, scientists treated the end of Earth’s habitability as a problem for the far future, measured in several billion ...

At the heart of our own galaxy, there is a dense thicket of stars with a supermassive black hole at the very center. NASA's ...

Have you ever wondered if there is life on another planet? Exoplanets may hold the key to this question.

When a NASA scientist finally cracked open a cache of 50-year-old lunar soil, the expectation was to refine old models, not ...

21 states have or are considering legistlation to make plug-in solar legal so their citizens can enjoy solar savings in bite ...

Skygazers who look up at the moon tonight may be able to spot Saturn below it. Here's when and how to spot the conjunction in ...