Moon Question of the Day
I'm not old enough to remember the Moon landings. I'd like to know what phase the Moon was in on ...
Moon Folklore of the Day
The moon appearing larger at sunset, and not dim, but luminous, portends fair weather for several...
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.