A spectacular new image from the James Webb Space Telescope reveals intricate structures inside the Helix Nebula, where a ...

The moon looks enormous when it's near the horizon — why is that?

Using powerful X-rays, researchers at SLAC are trying to recover erased traces of a 2,000-year-old star catalog that could ...

Expedition 74 crew members conduct cardiac monitoring, artificial intelligence testing, biomedical hardware checks and orbital reboost operations aboard the International Space Station.