Space & Physics

A severe geomagnetic storm brought spectacular auroras to much of the U.S. on Tuesday night

The sun just spat out several coronal mass ejections that could trigger a serious solar storm on Wednesday

There are six people living on the Chinese space station Tiangong at the moment, and the plan to bring three of them back is in progress

In a new book, NASA astrobiologist Caleb Scharf says the fate of life on Earth may hinge on leaving our planet behind

The first image from the Vera C. Rubin telescope reveals a previously unnoticed feature of the galaxy M61 that may explain its mysterious properties

Three Chinese astronauts will likely return safely to Earth after a reported space-junk strike. But the incident highlights the growing risk of orbital debris

Observations show the disk of our galaxy is not flat but warped and waving. Astronomers are still working out the reasons why

A “superflare” 10 trillion times brighter than the sun is confirmed as the record holder for luminosity

Reflect Orbital’s plan to deliver “sunlight on demand” using thousands of giant orbital mirrors is just the latest in a growing list of disruptive commercial activities in space

Ahead of Jared Isaacman’s renomination for the position of NASA’s administrator, a dispute between him and its acting chief Sean Duffy spilled into the open, with potentially profound consequences for the U.S. space agency

A cosmic explosion known as GRB 250702B is by far the longest gamma-ray burst astronomers have ever seen—if it’s even one at all

Debris from Comet Encke creates two annual meteor showers, but it might also pose a small risk to Earth. Scientists are investigating