After more than a decade of mapping the stars, the European spacecraft was shut down on Thursday. But its legacy lives on.

The stars as seen from Earth would have looked dimmer 14 million years ago, as the solar system was in the middle of passing ...

Say hello to one of the Milky Way's neighbors! This NASA/ESA Hubble Space Telescope image features a scene from one of the ...

A cosmic anomaly detected in a distant galaxy could portend a terrifying future for life in the Milky Way. The discovery suggests that our models of galactic evolution could be inaccurate.

Astronaut Don Pettit captured the image when the ISS was about 265 miles above the Pacific Ocean on January 29 ... In the background, the gassy, oblong Milky Way is visible.

Milky Way photography can yield some stunning shots ... on January 29 when the ISS was about 265 miles above the Pacific ...

Aterrifying glimpse of a possible fate for our galaxy, the Milky Way, has come to light thanks to the discovery of a cosmic ...

image of the Milky Way appearing beyond Earth's horizon. At the time, the International Space Station was orbiting 265 miles above the Pacific Ocean off the coast of Chile just before sunrise.

Astronomers have discovered "space tornadoes" raging through the heart of the Milky Way in the vicinity of our galaxy's central supermassive black hole, Sagittarius A* (Sgr A*). The discovery ...

A strange energy source at the center of the Milky Way may be a new type of dark matter. Scientists found that hydrogen gas ...