Jordan Flowers claims Russia and China may be reverse-engineering alien technology, raising national security concerns.

The Exploration Rover for Navigating Extreme Sloped Terrain (ERNEST) test rover has been put through its paces with great ...

NASA’s Nancy Grace Roman Space Telescope has reached Kennedy Space Center in Florida, where it has begun final preparations ...

Besiege Broken Beyond launched June 22 on Steam, adding inverse-square-law multi-body orbital gravity, 13 new space blocks, ...

An unusual visitor has entered our cosmic neighborhood. Scientists call these objects interstellar objects, or ISOs. Unlike ...

Science fiction isn't always scientifically accurate, but it's a treat when it is.

NASA proved Terzan 5 is not a globular star cluster but a living fossil from the Milky Way's earliest formation. Webb and Hubble jointly revealed four distinct stellar generations spanning 12.5 ...

Matter-antimatter annihilations produce about 10 billion times more energy per unit mass than chemical combustion (which ...

NASA's Swift Observatory is in peril. A last minute mission to save it could make spaceflight history. Here's everything to ...

Interplanetary travel to Mars aboard nuclear-powered spaceships may sound like science fiction – yet NASA is planning to make ...

The Swift Observatory is in peril more than 2 decades after a Cape Canaveral launch. Here's what to know about NASA's ...

A new exoplanet model screens rocky worlds by their ability to retain atmospheres over geologic timescales, helping narrow ...