Scientists have discovered more than 6,000 planets beyond our solar system. What if some of them aren't planets at all, but tiny black holes in disguise?

Sky gazers across the U.S. will have a chance to see an extraordinary celestial event on Friday as all of the planets in our solar system will appear in the evening sky. This phenomenon known as a ...

The night sky has inspired humankind since time immemorial, and in 2025 one of the most unusual planetary alignments of all time will provide an incredible opportunity for astronomers and skywatchers ...