Spotted thanks to a fleeting light distortion in 2011, a mysterious duo — a tiny star and its hefty companion — has turned ...

How do you distinguish a galaxy from a mere cluster of stars? That’s easy, right? A galaxy is a large collection of millions ...

NASA’s Chandra X-Ray Observatory helped diagnose the cause behind a large kink in a huge filament near the center of the ...

Sagittarius C, a turbulent region near the Milky Way’s center, is glowing with hot plasma and threaded by magnetic fields, ...

An Egyptian sarcophagus shows the sky goddess Nut as being covered in stars and having a dark, undulating curve running ...

A cosmic "bone" at the heart of the Milky Way appears to be fractured. Looking at the break, astronomers found a radio source.

The first image of the whole Earth from space came in 1972, when astronauts Ron Evans or Harrison Schmitt took a photo from onboard Apollo 17 while headed to the Moon. This was the first time that an ...

The Hubble Space Telescope has found evidence of a "wandering" black hole about 5000 light years away in the Milky Way galaxy ...

Using NASA’s Chandra X-ray Observatory, astronomers have uncovered the likely cause behind a mysterious fracture in one of ...

Near the center of the Milky Way are enormous filaments of radio energy that sometimes look like bones, and one in particular ...

Astronomers have discovered a likely explanation for a fracture in a huge cosmic "bone" in the Milky Way galaxy, using NASA's ...

The careening star blasted through the galactic filament, known as "the Snake," at a zippy 1–2 million miles per hour.