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- Q623903 subject Q7142273.
- Q623903 subject Q8807208.
- Q623903 subject Q8823497.
- Q623903 abstract "Mercury-Redstone 3, or Freedom 7, was the first United States human spaceflight, on May 5, 1961, piloted by astronaut Alan Shepard. It was the first manned flight of Project Mercury, the objective of which was to put an astronaut into orbit around the Earth and return him safely. Shepard's mission was a 15-minute suborbital flight with the primary objective of demonstrating his ability to withstand the high g forces of launch and atmospheric re-entry.Shepard named his space capsule Freedom 7, setting a precedent for the remaining six Mercury astronauts naming their spacecraft. The number 7 was included in all the manned Mercury spacecraft names to honor NASA's first group of seven astronauts. His spacecraft reached an altitude of 101.2 nautical miles (187.5 kilometers) and traveled a downrange distance of 263.1 nautical miles (487.3 kilometers). It was the third Mercury flight launched with the Mercury-Redstone Launch Vehicle, from Cape Canaveral, Florida, close to the Atlantic Ocean.During the flight, Shepard observed the Earth and tested the capsule's attitude control system, turning the capsule around to face its blunt heat shield forward for atmospheric re-entry. He also tested the retrorockets which would return later missions from orbit, though the capsule did not have enough energy to remain in orbit. After re-entry, the capsule landed by parachute on the Atlantic ocean off the Bahamas. Shepard and the capsule were picked up by helicopter and brought to an aircraft carrier.The mission was a technical success, though American pride in the accomplishment was dampened by the fact that just 3 weeks before, the Soviet Union had launched the first man in space, Yuri Gagarin, who completed one orbit on Vostok 1.".
- Q623903 thumbnail Alan_Shepard_during_Mercury-Redstone_3.jpg?width=300.
- Q623903 wikiPageExternalLink shepard.htm.
- Q623903 wikiPageExternalLink cover.htm.
- Q623903 wikiPageExternalLink nmc.
- Q623903 wikiPageExternalLink cover.htm.
- Q623903 wikiPageExternalLink mercury3.spacelog.org.
- Q623903 wikiPageExternalLink www.mercury-redstone3.com.
- Q623903 wikiPageExternalLink NASA-MercuryRedstone-3-Freedom-7-Press-Kit.
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- Q623903 wikiPageWikiLink Q8823497.
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- Q623903 point "27.23 -75.88".
- Q623903 type Place.
- Q623903 type ArtificialSatellite.
- Q623903 type CelestialBody.
- Q623903 type Location.
- Q623903 type Place.
- Q623903 type Satellite.
- Q623903 type Thing.
- Q623903 type SpatialThing.
- Q623903 comment "Mercury-Redstone 3, or Freedom 7, was the first United States human spaceflight, on May 5, 1961, piloted by astronaut Alan Shepard. It was the first manned flight of Project Mercury, the objective of which was to put an astronaut into orbit around the Earth and return him safely.".
- Q623903 label "Mercury-Redstone 3".
- Q623903 seeAlso Q52162.
- Q623903 lat "27.23".
- Q623903 long "-75.88".
- Q623903 depiction Alan_Shepard_during_Mercury-Redstone_3.jpg.