If there is one star that serves to announce the arrival of fall as the leaves have begun to turn, unquestionably that title ...

And considerably removed from this summer retinue, brilliant topaz Arcturus holds forth in solitary splendor in the western sky. Double color Probably the most colorful double star in the night sky ...

Find out what's up in your night sky during November 2025 and how to see it in this Space.com stargazing guide.

Astronomers have observed what they believe to be a never-before-seen companion star orbiting Betelgeuse, a pulsating red supergiant star in the shoulder of the Orion constellation. One of the best ...