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Results tagged with mars
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user 18458
Questions about the science or exploration of the planet Mars. See the tag wiki for related tags.
3
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What's the purpose of a manned flyby/orbit of Mars/Venus?
Many current outlines for trips to mars, such as Mars Base Camp, propose a large ship capable of transporting astronauts to Mars. … However this plan only proposes to send humans to Mars' orbit and not the surface. So what is the purpose of a manned flyby/orbit of Mars but not actually landing on the surface? …
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11
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2
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Are there any major flaws with the Mars Architecture used in the Martian?
Once in Mars orbit, the astronauts take a Mars descent vehicle to a pre-assembled hab, pre-fueled MAV,
and two large rovers waiting on the surface. … Putting all economic obstacles aside with building the Hermes and sending tens of tons to Mars, are there any major flaws in the Martian Mars Architecture that would prohibit a manned mission to Mars from …
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4
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Accepted
How much fuel is needed for the motor landing and taking off on Mars?
Source of image
To land:
There is some air at Mars which will slow you down somewhat, so 3.8km/s of Delta V is a ballpark number which is higher than what it is in reality. … But the moon requires much less delta V to land on than Mars. So a vehicle running the with the same fuels (N2O4 and Aerozine) would need a ratio of .72 fuel mass to total mass. …
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5
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How will the SpaceX ITS return from Mars?
It takes 3.8 km/s DV to orbit Mars from the surface, 2.5km/s DV to reach an intercept with Earth, and most likely around 1 km/s to vertically land on Earth as proposed by SpaceX. … SpaceX's plan is to generate methane on Mars using the Sabatier reaction using materials on Mars, once it generates the fuel it needs it will take off from Mars and in theory directly return to Earth. …
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7
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What were the Curiosity sky-crane’s descent engines?
I vaguely remember hearing the descent engines in the sky crane of curiosity were monopropellants and ran on hydrazine. Is this true and is there any other information on the engines available?
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