Astronomers say that of the thousands of stars visible to us in the northern hemisphere, Sirius is the brightest of them all.

The sun is about to enter the Northern Hemisphere, which means some stunning auroras may be visible in the coming weeks. At ...

This palm-sized device offers projection of the Northern Hemisphere's constellations for enjoyment and learning.

Mercury puts on its best evening apparition of 2025 for Northern Hemisphere observers during these two weeks. Venus will plummet dramatically toward its inferior conjunction on March 22 ...