This dimension groups missions by the era in which they launched, from the first Sputnik and Explorer flights to today's missions. Wikipedia notes that "the first spaceflights began in the 1950s with the launches of the Soviet Sputnik satellites and American Explorer and Vanguard missions." Browsing by launch era lets a visitor compare missions flown in the same historical period.
Facts
Comparison
Field Origin Era Launch Era
Sources
1. Wikipedia: Mariner program
Wikimedia FoundationMariner program, lead sectionQuote, Mariner program, lead section
Between 1962 and late 1973, NASA's Jet Propulsion Laboratory (JPL) designed and built 10 robotic interplanetary probes named Mariner to explore the inner Solar System, visiting the planets Venus, Mars and Mercury for the first time, and returning to Venus and Mars for additional close observations.
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