http://www.nasa.gov/mission_pages/hubble/science/milky-way-collide.html

Astronomers from the University of Bonn in Germany have discovered a vast structure of satellite galaxies and clusters of stars surrounding our Galaxy, stretching out across a million light years.

More than one billion stars in the Milky Way can be seen together in detail for the first time in an image captured by astronomers.

Astronomers have discovered the most distant galaxy cluster every found, 10.5 billion light years away from the Milky Way galaxy.

A spectacularly bright object recently spotted in one of the Milky Way's neighboring galaxies is the result of a "normal" stellar black hole, astronomers have found.