Phrase by 'Henry Spencer'

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On the technical side, Apollo 8 was mainly a test flight for the Saturn V and the Apollo spacecraft. The main spacecraft system that needed testing on a real lunar flight was the onboard navigation system.

Author: Henry Spencer - Canadian Scientist
  Real , Test , Side , Flight


Progress requires setbacks; the only sure way to avoid failure is not to try.

Author: Henry Spencer - Canadian Scientist
  Way , Failure , Try , Progress


Spaceflight, especially in the Mercury spacecraft, clearly wasn't going to be much like flying an airplane.

Author: Henry Spencer - Canadian Scientist
  Like , Going , Flying , Airplane


The Orion capsule uses an escape system quite like that of the Apollo spacecraft in the 1960s and 70s: an 'escape tower' containing a solid-fuel rocket that will pull it up and away from Ares I in a pinch.

Author: Henry Spencer - Canadian Scientist
  Like , Will , Escape , Space


Rocket engines generally are simpler than jet engines, not more complicated.

Author: Henry Spencer - Canadian Scientist
  More , Than , Complicated , Rocket


SpaceX does seem to have had a run of bad luck, with its first three launches all failing.

Author: Henry Spencer - Canadian Scientist
  Bad , Run , Luck , Bad Luck


In the long run, it's impossible to make progress without sometimes having setbacks, although people who get lucky on their first attempt sometimes forget this.

Author: Henry Spencer - Canadian Scientist
  Sometimes , People , Long , Progress


Is manned space exploration important? Yes - not least because it simply works much better than sending robots.

Author: Henry Spencer - Canadian Scientist
  Better , Important , Space , Robots


The demise of Constellation is not the death of a dream. It's just the end of an illusion.

Author: Henry Spencer - Canadian Scientist
  End , Death , Dream , Illusion


My one concern is that when money gets tight, it's easy to cut R&D funding that isn't tied to a specific project - look at what's happened to NASA's aviation research.

Author: Henry Spencer - Canadian Scientist
  Look , Money , Easy , Research


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