A new letter addressed to acting NASA chief Janet Petro calls out the space agency for failing to answer questions raised by ...

Such a dramatic cut to a flagship space telescope still in its prime will be felt across the mission's entire operations, ...

The asteroid is hurtling towards us at a zippy 15,000 miles per hour, according to the space agency's Jet Propulsion ...

YR4 has a very small chance of striking Earth when its orbit briefly intersects our planet's in December 2032.

NASA has announced the retirement of Associate Administrator Jim Free, the agency's chief operating officer for more than ...

NASA confirmed it may have sidestepped sweeping layoffs that were expected, potentially saving hundreds of newly hired ...

The Planetary Society called on the Trump administration to reverse the "arbitrary decision" to fire upwards of 1,000 ...

SpaceX CEO Elon Musk recommended hastening the end of the International Space Station on his social media site X, arguing ...

Callisto, the third largest moon in the entire solar system, orbits Jupiter from about 1.2 million miles away. The rocky ...

NASA is losing four key senior officials close to its flagship moon program, according to people familiar with the changes, ...