Sky This Week is brought to you in part by Celestron. Friday, November 21 The solar system's seventh planet, the ice giant Uranus, reaches opposition this morning at 7 A.M. EST among the stars of ...

For the first time, scientists have built a digital version of the Milky Way that follows the motion of individual stars, not ...

Simulating a billion years using previous best-resolution simulations would take almost 36 years of real computing time.

Astronomers have long puzzled over the cause of a mysterious “glow” of very high energy gamma radiation emanating from the ...

"The discovery of this stream highlights how much is still unknown about the life histories of galaxies, how the hidden ...