Where is all the water that may form oceans on distant planets and moons? The SPHEREx astrophysics mission will search the ...

YR4 is circling Earth and NASA predicts it could strike the planet in 2032. Here's what to know about the asteroid headed ...

"I'll always remember the first time I saw those iridescent clouds and was sure at first it was some color artifact." ...

The upcoming spring exhibition at San Francisco’s Exploratorium, opening Saturday, invites museum patrons to immerse ...

Astronomers at NASA have caught a glimpse of a star system whipping through space at an unprecedented speed. While the system ...

An asteroid becomes a meteorite when it travels to Earth from a nearby orbit or the outer solar system and collides with Earth, according to the United States Geological Survey. Small asteroids ...

Alas, the miracle could not last. The solar storms were heating Earth's upper atmosphere, causing it to inflate and increase ...

At the surface, Mars is a desolate, barren world with a rocky landscape, massive dust storms and extreme temperature swings.

NASA’s NEO Surveyor has passed its critical design review, clearing the way for construction and testing. This infrared ...

On the world's first Asteroid Day, Nina Burleigh discovers that Nasa has already commissioned a team of 'planetary defenders' ...

Scientists across the world, including some in Arizona, are keeping an eye on an asteroid that has a very slim chance of ...