Barry Wilmore and Sunita Williams were stranded on the ISS for 286 days. They now struggle with muscle and bone loss.

From frigatebirds and gulls to curlews and cormorants, researchers are tapping the ”Internet of Animals” to map, understand, and protect our changing world.

NASA’s newest space telescope rocketed toward orbit Tuesday ... or the heft of a grand piano — will take six months to map the entire sky with its infrared eyes and wide field of view.

The boost in federal spending for SpaceX will come in part as a result of actions by President Trump and Elon Musk’s allies ...

NASA's Sunita "Suni" Williams and Barry "Butch" Wilmore are home after being stranded in space for nine months. Find out what ...

London’s Heathrow Airport has announced a complete shutdown because of a power outage due to a large fire nearby, causing massive disruption to one of the world’s busiest travel hubs. Follow for live ...

A NASA spacecraft will make another close brush with the sun, the second of three planned encounters through the sizzling ...

What was meant to be a brief mission — just over a week to test a new spacecraft — turned into an extended odyssey of patience, resilience, and adaptation ...

SpaceX Crew-9’s return to Earth marks another milestone in NASA’s Commercial Crew Program, with four astronauts safely ...

Venus will pass between the Earth and sun on Saturday during what's called an inferior conjunction. But don't plan on seeing ...

From a teen helping recuse people on a capsized boat to NASA astronauts splashing down after being stuck in space, here are ...