Observing | Astronomy.com

The Sky Today on Saturday, December 6: Europa and its shadow cross Jupiter

A golden Full Moon in a dark blue sky seen through the branches of a foreground tree.

Observing, The Moon

2025 Full Moon calendar: When to see the Full Moon and phases

The Sky Today on Friday, December 5: Mercury improving

Sky This Week, The Sky This Week

The Sky This Week from December 5 to 12: Mercury stands west of the Sun

The Sky Today on Thursday, December 4: December’s Full Cold Super Moon

The sky on December 3, 2025, at 6:30 pm CST, looking east

The Sky Today on Wednesday, December 3: The Moon again blots out the Pleiades

Deep-Sky Objects, Observing

Michael’s Miscellany: Observe Stephan’s Quintet

The Sky Today on Tuesday, December 2: Visit the Winter Albireo

Telescopes and Equipment

Our favorite new products this holiday season

Observing, The Moon, This Week in Astronomy

This Week in Astronomy with Dave Eicher: The Moon passes the Pleiades

The Sky Today on Monday, December 1: Ganymede and its shadow transit Jupiter

December 2025: What’s in the sky this month? The giant planets delight overnight and the Geminids put on a show