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 |
|---|---|
| Age Of Aquarius |
The time when the spring equinox, the point where the Sun crosses from south to north of the celestial equator, will lie in Aquarius. The crossover point gradually moves against the stars, owing to precession, Earth’s slow wobble in space. The crossover point lay in Aquarius over 2,000 years ago. It is now in Pisces. It will reach Aquarius nearly 600 years from now.
|