A hurry-up launch in 2021 for a human flyby of Mars proposed by pioneer space tourist Dennis Tito would make a good “bridge” between the International Space Station and more sustainable missions closer to Earth, according to experts testifying before a skeptical House Science Committee Feb. 27. The mission would require an advanced version of NASA’s heavy-lift Space Launch System (SLS) and other new hardware to take advantage of a unique opportunity to reach Mars with a gravity assist ...

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