ESA’s decade-long Milky Way Gaia mapping mission still has tons of data to release over the next few years. Expect surprises.

The plasma jets of this cosmic giant span 3.3 million light-years from end to end - over 32 times the size of the Milky Way ...

Recent studies challenge the long-held belief that the Milky Way is a standard model for understanding galaxy formation, ...

Gaia is an astrometry mission that's built an impressive map of the Milky Way by taking three trillion observations of two ...

Hubble revealed a universe of galaxies that existed beyond ours — but he couldn't have done it without a little help.

The new composite image, which combines hundreds of photos from the Hubble Space Telescope, shows the Andromeda Galaxy with ...

In 1920, astronomers Harlow Shapley and Heber Curtis held a Great Debate. Shapley argued that the spiral nebulae were small and in the Milky Way, while Curtis took a more radical position that they ...

About 100 years after astronomer Edwin Hubble's discovered the "magnificent" spiral nebula, the Hubble Space Telescope and ...

The future of galaxies remains one of the most interesting topics for experts. In fact, they will not survive the passage of ...

One of the largest galaxies ever found, the behemoth is about 1.44 billion light-years away and reckoned to be 32 times the ...

The James Webb Space Telescope has captured a mid-infrared picture of Sagittarius A*, filling in a long-standing gap in ...

The Milky Way’s stars live mostly in two neighborhoods. Young, hip stars stick together in a thin disk, orbiting as if they’re all sitting on the same flat spinning record. Older stars ...