Mars didn’t always look like the barren world we see today. Over billions of years, the Sun’s solar wind stripped away much of its atmosphere, helping transform it from a warmer, wetter planet into a ...

NASA's Solar Dynamics Observatory captured sunspot AR3386 blast a long-duration X1.6-class solar flare. See at time-lapse of ...

NASA's Solar Dynamics Observatory captured sunspot AR3386 blast a long-duration X1.6-class solar flare and X1 flare. See time ...

NASA astronauts will conduct a pair of spacewalks beginning Wednesday, March 18, outside of the International Space Station.

Aliens: "Sorry, you're cutting out!" The post Something May Be Scrambling Alien Messages, NASA-Funded Research Finds appeared ...

NASA seems to be gearing up for one of its boldest missions yet. This isn’t just about planting a flag and snapping photos.

A 140-foot space rock, Asteroid 2007 EG, will pass relatively close to Earth soon. Scientists say it’s harmless, yet they’re watching carefully. Why does this flyby matter for future asteroid defence?

Not even an asteroid blast could kill it.

A breakdown of the "War Machine" ending, including the final scene, biggest twists, and what it all means.

Astronomers witnessed planets colliding 11,000 light-years away, an event that could shed light on the collision that created Earth's moon.

A solar eclipse recorded in ancient China more than 2,700 years ago is helping scientists refine measurements of Earth’s rotation and investigate the Sun’s past behavior.

Math lovers and pie fans unite on March 14 to celebrate Pi, the infinite constant driving everything from space exploration ...