Harvard's Avi Loeb says a rare sun alignment on 22 January could prove interstellar visitor 3I/ATLAS is an alien spaceship.

NASA’s long record of Martian exploration has trained the public to expect a steady stream of images and data from the Red ...

Another federal shooting in Minneapolis sparks protests, and four astronauts splash down after a medical evacuation. The post ...

From toppling Venezuela's leader to ordering mass deportations, from turning once independent government entities into rubber ...

Finding new worlds out there is pretty exciting, right? Scientists are getting really good at spotting planets around other ...

The members of SpaceX's Crew-11 mission, the first ever to be medically evacuated from the International Space Station (ISS), ...

New photos show off NASA's newly constructed Roman Space Telescope, which will soon help researchers unravel the mysteries of ...

Sputnik skies to analysis of interstellar visitors, scientists are rethinking how and where to look for physical traces of ...

An ailing astronaut is back on Earth. The crew of four returned Thursday, ending their space station mission more than a ...

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

One year ago today, President Donald J. Trump returned to office with a resounding mandate to restore prosperity, secure the border, rebuild American ...

President Donald Trump didn’t ask Congress’ permission to take military action against Venezuela and haul away the South American nation’s president to stand trial in the United States. He also, ...