Browncoats, it's finally here — the next chapter of the Unification War of the "Firefly" sci-fi franchise in a new comic from creator Joss Whedon and others.

A planet-hunting telescope recently made a new discovery about the Milky Way's past cannibalism.

NASA astronaut Christina Koch has smashed another gender barrier. Koch recently surpassed her 300th consecutive day in space, which is the longest for any woman.

Arianespace flew a pair of communications satellites safely into space Thursday (Jan. 16) during its first launch of 2020.

As the deadly Australian wildfires spread smoke around the world, astronauts in space are closely watching the burns advance.

China's first rocket launch of 2020 was a mystery payload, with Chinese state media and independent analysts making different claims about the goal of the mission.

Viewers in Asia, Australia, Europe and Africa were treated to a very subtle type of eclipse Friday (Jan. 10) — a penumbral lunar eclipse that just barely darkened the moon's face.

When SpaceX's billionaire CEO Elon Musk isn't running his own private space program, he's leading Tesla's electric car revolution. And sometimes, he dances.

New satellite images from NASA and the European Space Agency show the impacts of the deadly Australian wildfires on both people and wildlife.

The jets emanating from a famous black hole are cruising along at near light speed, according to new observations.

How close is the International Space Station to an endgame? Commercial providers recently discussed the possibility as they talked about capitalizing on a new commercial direction for the station.

The core stage of NASA's new megarocket, the massive Space Launch System (SLS), ready to leave its New Orleans home for an epic journey culminating in a space voyage.

Blue Origin opened a new headquarters in Washington State as the company aims to send private astronauts into suborbital space later this year.

The horrific wildfires blanketing much of southeastern Australia right now came under scrutiny from space.

NASA lost touch with a small planet-hunting satellite in December while the telescope was in its third mission extension.

The first launch of Firefly Aerospace's Alpha rocket has pushed to April 2020 as the company prepares for a very busy year.

There's finally a sequel to Michael Crichton's 1969 classic about extraterrestrial life trying to take over humanity from, of all places, Arizona.

The two rovers have quite different missions.

The 2020 Quadrantid meteor shower will peak overnight on Jan. 3-4, and the moon will be favorable to see the faint display of "shooting stars." Here's our guide.

Three Nobel Prize laureates gathered to talk about the universe with none other than two Expedition 61 astronauts orbiting Earth: NASA's Jessica Meir, and Italy's Luca Parmitano.

From commercial crew to a flood of Mars missions, 2020 promises to be an exciting year for spaceflight.

New results relying on five decades of satellite observations show extensive changes to glaciers at the Earth's north and south poles.

If you're feeling all tied up with obligations this holiday season, perhaps a newly studied galaxy feels the same way.