The Milky Way is one of the biggest in the observable universe: Even if you traveled at the speed of light, it would take 100,000 years to go from one end of our home galaxy to the other.

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

asserted that the Milky Way was filled with millions of inhabited worlds, thus defying Papal Decree. For this impiety he was burnt at the stake. The sun has 8 planets including the Earth and millions ...

The Solar System's journey around the Milky Way's center takes it through varying ... lead author and doctoral student at the University of Vienna. "Our Sun encountered a region of higher gas ...