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  2. Apollo program - Wikipedia

    en.wikipedia.org/wiki/Apollo_program

    Neil Armstrong pilots the Apollo Lunar Module Eagle and lands himself and navigator Buzz Aldrin on the Moon, July 20, 1969. The first three lunar missions (Apollo 8, Apollo 10 , and Apollo 11) used a free return trajectory , keeping a flight path coplanar with the lunar orbit, which would allow a return to Earth in case the SM engine failed to ...

  3. Know thyself - Wikipedia

    en.wikipedia.org/wiki/Know_thyself

    Although traditionally attributed to the Seven Sages of Greece, or to the god Apollo himself, the inscription likely had its origin in a popular proverb. Ion of Chios makes the earliest explicit allusion to the maxim in a fragment dating to the 5th century BC, though the philosopher Heraclitus , active towards the end of the previous century ...

  4. Marsyas - Wikipedia

    en.wikipedia.org/wiki/Marsyas

    Marsyas receiving Apollo's punishment, İstanbul Archaeology Museum. In Greek mythology, the satyr Marsyas (/ ˈ m ɑːr s i ə s /; Ancient Greek: Μαρσύας) is a central figure in two stories involving music: in one, he picked up the double oboe that had been abandoned by Athena and played it; [1] [2] in the other, he challenged Apollo to a contest of music and lost his hide and life.

  5. Delphic maxims - Wikipedia

    en.wikipedia.org/wiki/Delphic_maxims

    The Delphic maxims are a set of moral precepts that were inscribed on the Temple of Apollo in the ancient Greek precinct of Delphi. The three best known maxims – "Know thyself", "Nothing in excess", and "Give a pledge and trouble is at hand" – were prominently located at the entrance to the temple, and were traditionally said to have been ...

  6. Apollo 11 - Wikipedia

    en.wikipedia.org/wiki/Apollo_11

    Apollo 11 was the second American mission where all the crew members had prior spaceflight experience, [54] the first being Apollo 10. [55] The next was STS-26 in 1988. [54] Deke Slayton gave Armstrong the option to replace Aldrin with Lovell, since some thought Aldrin was difficult to work with. Armstrong had no issues working with Aldrin but ...

  7. Wikipedia:Citing sources - Wikipedia

    en.wikipedia.org/wiki/Wikipedia:Citing_sources

    Wikipedia:Video links – an essay discussing the use of citations linking to YouTube and other user-submitted video sites; Wikipedia:WikiProject Citation cleanup – a group of people devoted to cleaning up citations; Wikipedia:Reference database – essay/proposal; Changing citation style formats. WP:CITEVAR

  8. Apollo - Wikipedia

    en.wikipedia.org/wiki/Apollo

    A temple of Pythian Apollo, was built in the 7th century BC. The plan measured 19.00 x 16.70 m and it was not peripteral. The walls were solid, made from limestone, and there was a single door on the east side. Thermon (West Greece): The Doric temple of Apollo Thermios, was built in the middle of the 7th

  9. Apollo 8 - Wikipedia

    en.wikipedia.org/wiki/Apollo_8

    Apollo lunar missions would begin with a nominal 100-nautical-mile (185.2 km) circular Earth parking orbit. Apollo 8 was launched into an initial orbit with an apogee of 99.99 nautical miles (185.18 km) and a perigee of 99.57 nautical miles (184.40 km), with an inclination of 32.51° to the Equator, and an orbital period of 88.19