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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| Outflow Channel |
A channel on Mars, typically several kilometres wide and hundreds of kilometres long, that once drained large amounts of liquid water from the southern uplands to the northern lowlands.
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