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Results tagged with crewed-spaceflight
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user 3101
Crewed spaceflight (also referred to as human spaceflight or manned spaceflight) is space travel with a crew aboard the spacecraft. When a spacecraft is crewed, it can be operated directly, as opposed to being remotely operated or autonomous.
11
votes
What is the largest hurdle of the mission to Mars?
What is the largest hurdle of [a manned] mission to Mars?
Radiation
The daily dosage received by a human on earth is 0.00001 sieverts.
The shortest round-trip to Mars involves a 0.66 sievert do …
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