A three-armed spacecraft is rushing to the rescue of a NASA telescope that’s in danger of crashing back to Earth.

NASA and Arizona-based startup Katalyst launched a robotic spacecraft over the Pacific on Thursday on a mission to rescue an ...

NASA has launched the LINK spacecraft on a mission to rendezvous with the aging Swift observatory and boost it into a higher ...

A polarizing Harvard astronomer known for splashy theories about alien visits has been tapped by the Trump administration to ...

Avi Loeb, a Harvard astronomer who has made headlines with his theories about alien encounters, will lead a White House ...

A rare visitor from another star system prompted SETI to hunt for alien technology, but the mysterious object appears to be a ...

Pulverised technology from collapsed alien civilisations may lie scattered across the solar system, including on the Moon, a new study suggests. The likelihood of advanced aliens living at the same ...

The Pegasus XL is an air-launched vehicle. It releases from a modified commercial airliner at about 39,000 feet, then ignites a series of three solid-fueled rocket motors to climb and accelerate into ...

The best way to find alien technosignatures is to look for ones that have long survived their creators, according to a new paper. Reading time 3 minutes In our search for life beyond Earth, we might ...

To date, over 5000 exoplanets have been discovered using telescopes on the ground and in space. Credit: NASA/JPL-Caltech Donors misled into giving to Trump group instead of America250: report Aspen ...

“Disclosure” has become a cult word. It shouldn’t be, since all it means, technically, is to reveal something. But the new wave of alien conspiracy theorists have made “disclosure” into a teasingly ...