Back to Glossary
The Moon
The Moon is Earth’s only natural satellite—a rocky, cratered body about one‑quarter the diameter of Earth, orbiting at an average distance of approximately 384,400 km. It influences tides, stabilizes Earth’s axial tilt, and was formed about 4.5 billion years ago following a collision between Earth and a Mars-sized object.
Source: science.nasa.gov
APODs including "The Moon"
A Horizon with Blue and Red
05/12/2017
Full Moon Silhouettes
Video preview available on open
Video
03/12/2017
Messier Craters in Stereo
02/12/2017
Apollo 17 at Shorty Crater
24/11/2017
Friday, the Moon Smiled
18/11/2017
NGC 7789: Caroline's Rose
15/11/2017
A Happy Sky over Los Angeles
12/11/2017
A Colourful Moon
11/11/2017
The Prague Astronomical Clock
07/11/2017
A Year of Full Moons
05/11/2017
Marius Hills and a Hole in the Moon
25/10/2017
A Beautiful Trifid
20/10/2017
Eclipsosaurus Rex
07/10/2017
Layers of a Total Solar Eclipse
27/09/2017
A September Morning Sky
21/09/2017
A Total Solar Eclipse Close-Up in Real Time
Video
12/09/2017
The Great Gig in the Sky
08/09/2017
The Climber and the Eclipse
06/09/2017
A First Glimpse of the Great American Eclipse
01/09/2017
Lunar View, Solar Eclipse
31/08/2017
A Fleeting Double Eclipse of the Sun
28/08/2017
Diamond Ring in a Cloudy Sky
25/08/2017
Time-Lapse: A Total Solar Eclipse
Video preview available on open
Video
20/08/2017
Perseid by the Sea
16/08/2017
A Total Solar Eclipse of Saros 145
11/08/2017
A Total Eclipse at the End of the World
30/07/2017
A Hybrid Solar Eclipse over Kenya
24/07/2017
Apollo 11: Catching Some Sun
22/07/2017
Moon Shadow versus Sun Reflection
Video
17/07/2017
Full Moon and Boston Light
13/07/2017