This last weekend, I watched “The
Martian,” and the realism of the movie reflects a lot of the
challenges we'll face when someday going to Mars. One of the issues
that didn't need to be addressed in the movie was the long journey to
Mars, and the effect a zero-gravity environment would have on the
astronauts. This was shown to be a non-issue because the spacecraft
the astronauts traveled in had a rotated centrifugal design,
generating gravity inside the capsules on the perimeter ring.
Astronauts were also seen running on treadmills inside these
capsules, so we are to assume that the long journey did not affect the pioneers adversely. However, weightlessness in space is a
very real problem that NASA is currently addressing through research
in artificial gravity, a study that has been previously on and off
for decades. The three-year long journey to Mars has made
gravity-related issues very crucial, and NASA is now devoted to
finding a solution. Answers need to be found soon, if we are really
going to go to Mars.
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