So how well do you know the Milky Way? Let's test your knowledge of our galaxy's size, age, speed and more with the 15 ...

A hundred years ago, astronomer Edwin Hubble dramatically expanded the size of the known universe. At a meeting of the ...

The discovery was published on Jan 17 in the Monthly Notices of the Royal Astronomical Society, a peer-reviewed scientific ...

Astronomers have discovered an extraordinary new giant radio galaxy with plasma jets 32 times the size of our Milky Way.

In the heart of our Milky Way galaxy, two gigantic "bubbles" extend roughly 50,000 light-years above and below the galactic ...

Astronomers have discovered a giant radio galaxy with plasma jets stretching an incredible 3.3 million light-years—32 times ...

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

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 ...

Conflicting distance measurements have added to the uncertainty. One data source places one object at 6,500 light years away, ...

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