An astronaut in need of medical care is on the way back to Earth. The ailing astronaut departed the International Space ...

With its departure ahead of Crew-12's arrival, Crew-11 leaves behind a skeleton crew of three aboard the ISS, including ...

Though 3I/ATLAS poses no threat to Earth or our satellites, its journey highlights how the networks we built for planetary ...

A crowd-sourced search for alien intelligence called SETI@Home is in its final stages, analyzing 100 radio signals of ...

The United States is stepping back from the most direct test yet of possible alien biology on Mars just as new telescopes and ...

In September, NASA announced the discovery of a possible sign of life, known as a potential biosignature, on Mars. The Perseverance rover, which has been exploring a dried-up lakebed for years, found ...

The third known visitor from another star system, Comet 3I/ATLAS, has been racing through the Solar System with just enough ...

A dedicated scan for signs of radio-transmitting technology in interstellar comet 3I/ATLAS has come back with absolute ...

A newly discovered exoplanet is rewriting the rules of what planets can be. Orbiting a city-sized neutron star, this Jupiter-mass world has a bizarre carbon-rich atmosphere filled with soot clouds and ...

Two space telescopes really are better than one. This month NASA released a new image that combines observations from the James Webb Space Telescope (JWST) and the Chandra X-ray Observatory of two ...

The aspiration of returning American astronauts to the moon has been in limbo for decades, as plans have been embraced and rejected from one presidential administration to the next. In 2026, however, ...

WASHINGTON (AP) — The U.S. military said Tuesday that nearly 25 operatives of the Islamic State group were killed or captured in Syria this month following an ambush that killed two U.S. troops and an ...