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 |
|---|---|
| Liner |
An acronym for low-ionization narrow emission line region. Such regions are found in a high proportion of spiral galaxies. Apparently they are a weak form of active galactic nucleus, which suggests that, at some level, all galaxies exhibit activity in their nuclei.
|