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 James Webb Space Telescope has captured a fleeting, spectral flash from the Milky Way’s central black hole, a signal that ...

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