Moon Question of the Day
On December 26, 1978, the Moon had a star resting on its tip. What was this called and how often ...
Moon Folklore of the Day
Seeing a new moon through closed windows is unlucky.
Sky Maps (Star Chart)
Get free, printable Sky Maps (Star Charts) to find your way around the night sky. View Sky Maps for this month.
Each month, we highlight what’s happening in the skies—including bright planets, conjunctions, and meteor showers. Read Sky Watch
See which eclipses will be visible across North America. See 2015 and 2016 Eclipse Dates.
Catch a star! See meteor showers dates for 2015 —plus viewing tips.
With the Tide Predictions Calculator, find high and low beach tides for any location in the U.S. and Canada for any date.