Short cut to Mars re­quires power and fuel

Science Illustrated - - SPACE -

The new gen­er­a­tion of rock­ets has more engine power and can hence bring more fuel and gain higher speeds. Ac­cord­ing to NASA’s cal­cu­la­tions, a rocket can travel from Earth to Mars in only 80 days, if it con­sumes more than three times as much en­ergy as via a Hohmann trans­fer or­bit. On the other hand, the rocket must brake sharply upon ar­rival to Mars.

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