Space exploration began with the launch of Sputnik and Astrophysics was born as the application of physics to the phenomena observed by Astronomy, which etymologically means laws of the stars.
There are 2759 entries in this glossary.| Term | Definition |
|---|---|
| Encke Division Encke Gap |
A dark gap in the bright A ring around Saturn. A Voyager 2 image showed a narrow, rather wavy ringlet within the Encke Division. In 1990, a small satellite, Pan, was found orbiting within the Division.
See also: planetary rings
|