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| 1971: | Apollo 15 astronauts drive the lunar roving vehicle across the moon |
| 1972: | |
| 1973: | |
| 1974: | Richter and Ting et al independantly discover first evidence of a fourth quark |
| 1975: | |
| 1976: | |
| 1977: | Human-powered aircraft "Gossamer Condor" flown for 1.35 miles (2.2
km)
Lederman et al discover new particle believed to give evidence of a fifth quark |
| 1978: | First manned balloon crossing of the Atlantic Ocean
Pioneer Venus I Orbiter begins transmitting |
| 1979: | Comet (larger than Earth) hits the Sun |
| 1980: | John Lennon Shot and Killed |