The Milky Way Galaxy contains an estimated 400 billion stars, with the faintest (M dwarfs) posing challenges to accurate counts. The Perseus Moving Group (Melotte 20), a cluster containing ...

October will be an interesting month in the sky. Unmistakable Saturn will rule the southern skies with a steady, pale-yellow ...

The moon and Venus will shine vividly alongside a bright star in the early morning in a celestial rendezvous that should be visible across the U.S.

One of the questions I receive most frequently is this: Since the stars are so distant and their light takes many centuries to reach us, how do we know they still exist? An excellent question but one ...

Why is the night sky dark? This simple question, known as Olbers' paradox, has perplexed astronomers for centuries. In an infinite, eternal universe filled with stars, every line of sight should end ...

Watch the crescent moon, Venus and the bright star Regulus align in a rare predawn close conjunction tomorrow.

The crescent moon will shine with Jupiter among the stars of Gemini early on Sept. 16. Turn your eyes to the east in the ...

CLEVELAND, Ohio — Where have the stars gone? As a child, I’d joke with friends about stars. In our brains, the Milky Way was a candy bar, not a celestial beacon that lit nights. Our teachers reminded ...