A ghostly white river is coursing over the continent this month. It isn’t fog, and it isn’t cloud. It’s the packed heart of ...

Using gravitational microlensing, scientists have discovered a rare, large planet at the edge of the Milky Way. The planet is ...

The bright core of the Milky Way — the biggest and best sight at night — becomes visible in June in the Northern Hemisphere.

The dark path that cuts through this center is known as the Great Rift, because it gives the appearance that the Milky Way has been split in half, right through its center and along its radial ...

The dark path that cuts through this center is known as the Great Rift, because it gives the appearance that the Milky Way has been split in half, right through its center and along its radial ...