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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| Caldera |
A large volcanic crater, usually more than two kilometres in diameter. Calderas are created by collapse or explosive eruption, or a combination of the two, and often have a complex structure.
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