SpaceX has notched a number of important milestones in the past week or so. For example, one recent mission launched the ...

Comet 3I/ATLAS is warming up as it approaches the sun, causing a jet to emerge. The jet is visible in a dramatic new image.

A scientist spotted an asteroid hiding in the sun's glare that orbits the sun in just 128 days, making it the second fastest ...

On Episode 183 of This Week In Space, Rod Pyle and Tariq Malik are joined by Mike Wall to discuss NASA's pursuit to beat the ...

This quiz will test your lunar savvy — from iconic craters and mysterious maria to the legendary Apollo landing sites.

"Foolish, Earthlings!" The line most commonly uttered by two drooling aliens who have become a staple of "The Simpsons"' ...

The two Texas Senators trying to mandate the relocation of Discovery from the Smithsonian Institution's Udvar-Hazy Center in ...

Japan's new HTV-X cargo spacecraft will launch on its first-ever mission to the International Space Station today (Oct. 25), ...

As the collapsed core of a massive star, a neutron star is a small but incredibly dense object, packing up to three times the ...

Jupiter was shaping Earth's fate before our planet even existed, carving gaps in the early solar system that kept its ...

Over the past seven decades, thousands of sophisticated spacecraft have been launched on ambitious missions to look down on our planet, explore the wonders of our star's domain, or venture into the ...

Three billion years ago, a sun -like star reached the end of its life, throwing off its outer layers following its red giant ...