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The Mars program was a series of uncrewed spacecraft launched by the Soviet Union between 1960 and 1973. The spacecraft were intended to explore Mars,...

Korabl-Sputnik 2 (Russian: Корабль-Спутник 2, lit. 'Ship-Satellite 2'), also known as Sputnik 5 in the West, was a Soviet artificial satellite, and the...

Vandenberg Space Force Base Launch Facility 04 (LC-04) is a former United States Air Force (USAF) Intercontinental ballistic missile (ICBM) launch facility...

Micro-Space was an aerospace corporation based in Denver, Colorado, founded in February 1977 by Richard P. Speck under the name Spectron Instrument Corporation...

Artificial satellites in low inclination orbits are rarely placed in retrograde orbit. This is partly due to the extra velocity (and propellant) required...