This dimension groups spacecraft by the era in which they launched. Wikipedia notes that "only a handful of interstellar probes, such as Pioneer 10 and 11, Voyager 1 and 2, and New Horizons, are on trajectories that leave the Solar System," probes that themselves span several decades of launch history. Browsing by launch era lets a visitor compare spacecraft flown in the same period.
Facts
Comparison
Field Origin Era 2018-05-05
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Sources
1. Wikipedia: Mars 3
Wikimedia FoundationMars 3, overview section, lander factQuote, Mars 3, overview section, lander fact
After the Mars 2 lander crashed on the Martian surface, the Mars 3 lander became the first spacecraft to attain a soft landing on Mars, on December 2, 1971.
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