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 |
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| De Chã©Seaux’s Comet |
An exceptionally bright comet discovered independently by Klinkenberg from Haarlem on 9 December and De Chéseaux from Lausanne on 13 December 1743. It reached magnitude -7 and developed a fan of multiple tails: eleven separate tails were noted.
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