- Sputnik 21 was the final flyby attempt to Venus in 1962.
- The Magellan Probe's major objective was to map Venus.
- The U.S. was given credit with the first successful Venus flyby.
- USSR was the first country to land on Venus.
- The Cassini was the only probe sent to Venus in the 1990's.
- The Mariner 1 was the first probe to attempt a flyby Venus by the U.S.
- Venera 7 was the first probe to land on Venus.