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 |
|---|---|
| Field Galaxy |
A galaxy that appears in the same field of view as a cluster of galaxies but is not itself a member of the cluster. The alignment is purely coincidental and the field galaxy is nearer or further away than the cluster.
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