Magdrive is working on three versions of its space thrusters, and because they run on solid metal, they might one day even be powered by space junk collected directly in orbit, turning it from threat ...

Specifically, the findings support the hypothesis that supernovae could have triggered two of the so-called "big five" mass ...

Down to their very DNA, astronauts’ bodies can change in weird and sometimes significant ways, particularly during a long flight high above the Earth: They start to elongate, often developing a taller ...

At the center of most large galaxies, including our own Milky Way, sits a supermassive black hole. Interstellar gas ...

The Blue Ghost spacecraft, named for a species of firefly, took eclipse chasing to new heights. Not only did it see the Earth block the Sun from an unexplored location on the Moon, but the lander fell ...

Astronomy contributor and lunar expert Robert Reeves looks back on a Texas-sized achievement in Moon exploration.

NASA's Suni Williams and Butch Wilmore - who gained international attention as their planned short stay in space stretched into a nine-month, politically fraught mission - are finally heading home.

The James Webb Space Telescope has captured its first direct images of carbon dioxide in a planet outside the solar system in ...

This story was produced in partnership with the Pulitzer Center. It is part three in a four-part series. Read part one here ...

We may be starting to get a grasp on what kick-started life on Earth – and it could help us search for it on other planets ...

Between 15,000 and 8,000 years ago, the Earth experienced significant climatic changes, including the rapid retreat of ice ...

Bone and muscle deterioration, radiation exposure, vision impairment — these are just a few of the challenges space travelers ...