Astronomy: Moon, Sun, & Planets
In south Texas, I saw the largest ring around the Moon I've ever seen. Why so big and does it pre...
A new moon with sharp horns threatens windy weather.
Sky Watch for May
Go stargazing! Here are the night sky highlights for May.
Sky Map for May
Free, printable star chart for May 2016. See sky map.
See which eclipses will be visible across North America. See 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.