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9 votes
2 answers
512 views

Why cannot supersonic retropropulsion, for use in the Red Dragon lander be tested on Earth?

What is the reason that Red Dragon is testing supersonic retropropulsion on a Mars mission. Is the Earth's upper atmosphere too different to that of Mars to validate this method as a viable way of ...
Mike H's user avatar
  • 674
8 votes
3 answers
1k views

Is it probable the Red Dragon will successfully land on Mars on the first try?

Today it was revealed that SpaceX has a deal with NASA to send a Red Dragon lander to Mars, launched on a Falcon Heavy, in 2018. The plan is that it will use supersonic retro-propulsion during the ...
kim holder's user avatar
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