December 2024 will see a rare "black moon," a term for the second new moon in a calendar month. The second new moon of ...

The known black holes that populate the universe fall into two types: those up to a few dozen times the mass of the sun and ...

The Capital Region got quite a show in 2024, thanks to a melange of natural forces and phenomena. It was a year that lit up ...

The 2025 skywatching guide includes a rare sunrise solar eclipse, an occultation of Mars and three supermoons. Here are the ...