NASA
NASA Science
Earth's Moon
Skip Navigation
menu
close modal
When is International Observe the Moon Night?
You Might Also Like
Info and tips for observing the Moon.
Viewing Guide
Why can I see the Moon during the day? And other frequently asked questions about our Moon.
Top Questions about Earth's Moon
Between four and seven times a year, Earth, Moon and Sun line up just right to create the cosmic-scale shadow show known as an eclipse.
Eclipses
