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originally posted by: Aliensun
a reply to: mirageman
Citing a history of the "space race" between the Americans and the Soviets without including the important psychological aspect that UFOs added to the whole drama is virtually criminal or at least literary malfeasance.
originally posted by: 38181
Those two incidents one space craft skipping off earths atmosphere into deep space and the other one uncontrolled into deep space, if true would be my absolute nightmare.
I would want a cyanide capsule on any mission to space just in case.
Anyone know if that's feasible to skip off earths atmosphere and still have enough energy to escape earths gravity?
The Apollo missions marked the first event where humans traveled through the Van Allen belts, which was one of several radiation hazards known by mission planners. The astronauts had low exposure in the Van Allen belts due to the short period of time spent flying through them. Apollo flight trajectories bypassed the inner belts completely to send spacecraft through only the thinner areas of the outer belts. Astronauts' overall exposure was actually dominated by solar particles once outside Earth's magnetic field. The total radiation received by the astronauts varied from mission to mission but was measured to be between 0.16 and 1.14 rads (1.6 and 11.4 mGy), much less than the standard of 5 rem (50 mSv) per year set by the United States Atomic Energy Commission for people who work with radioactivity.