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

Researchers use spectropolarimetry to understand what shape supernovae take when matter explodes from the surface, but it has ...

Plus, the Geminid meteor shower peaks on the night of Dec. 13-14, and the winter solstice arrives Dec. 21 at 10:03 a.m.

Astronomers mapped supernova SN 2024ggi for the first time, revealing an elongated shockwave, challenging old stellar ...