Astronomy on MSN

The sky today on Wednesday, December 10: Spot Neptune

Looking for a sky event this week? Check out our full Sky This Week column. December 9: Dione and Tethys trade places Neptune is stationary at 7 P.M. EST, ending its retrograde motion. The ice giant ...

Astronomers Discover One of the Largest Rotating Structures Ever Seen in the Universe

Researchers have found a razor-thin, rotating string of galaxies inside a massive cosmic filament, revealing unexpected ...