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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| Schickard |
A large lunar crater, 227 kilometres 141 miles in diameter, near the Moon’s south-west limb. The darkness of the crater floor indicates that it may be flooded by lava.
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