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 |
|---|---|
| Dew Cap |
An extension fixed to a telescope tube to inhibit the condensation of water droplets on the optical elements. A simple tube extension works by lowering the cooling effect of direct air currents. A more sophisticated dew cap may incorporate a small electric heating element.
|