Apollo 8

Discussion in 'science, nature and environment' started by HAL9000, Dec 12, 2018.

  1. HAL9000

    HAL9000 Lasting Damage


    'It was the only colourful thing in the Universe'

    In December 1968 Apollo 8 went into orbit around the Moon, but the astronauts on board were more impressed by the sight of the Earth rising in the distance, than by their close-up view of the lunar surface. Colonel Frank Borman, Commander of Apollo 8, remembers the flight.

    BBC World Service - Witness, 'It was the only colourful thing in the Universe'
  2. Sprocket.

    Sprocket. I am just waiting for the next tomato..

    I remember being fascinated with this mission as a wonder filled 11 year old.
    I had that poster on my wall for many years.
    danny la rouge and a_chap like this.
  3. a_chap

    a_chap When the world came apart, where were you?

    It has always been my opinion that Apollo 8 was the most remarkable manned space mission. After Yuri Gagarin's, naturally.

    :thumbs: :eek: :eek: :eek: :eek: :thumbs:
  4. HAL9000

    HAL9000 Lasting Damage

    Its impressive what was managed with 1960's technology, at 1 minute 43 seconds you see an astronuat doing this...... (according to another website, its Jim Lovell)


    The astronuat is a using a high tec version of a sextant, used to update the navigation computer....

    danny la rouge likes this.
  5. a_chap

    a_chap When the world came apart, where were you?

    Yes, that's Jim Lovell.

    Space sextants were used in the Gemini program too as NASA learned how to perform rendezvous in space.

    Interestingly the space sextant was instrumental (no pun intended) in helping the crew of Apollo 13 make the necessary course-correction manoeuvres to bring them safely home. Apollo 13 was, of course, commanded by... Jim Lovell.
    danny la rouge and HAL9000 like this.
  6. HAL9000

    HAL9000 Lasting Damage

  7. ferrelhadley

    ferrelhadley These violent delights have violent ends.

    The US Navy reintroduced celestial navigation to its officer courses in 2015 due to the risks of GPS jamming, while ICBMs and some space probes used variations of it to update their inertial guidance systems. You need the Sun plus at least one other star to get a fix on your attitude and position. The SR-71 also had an automated system that used a star position to keep the inertial guidance up to date.

    The ISS has a current experiment to use xray pulsars as navigation tools in a similar fashion.
    Station Explorer for X-Ray Timing and Navigation (SEXTANT) | Space Technology: Game Changing Development
    HAL9000 likes this.

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