Gravity Fields
Gravity is one of the challenges that astronauts face in their flights or tasks
they perform in different regions of space, whether low Earth orbit, deep
space, or even Mars flights
For example, the trips that are to Mars, it faces three types of different
gravitational fields, starting from the earth’s gravity and the major gravity
that they face while ascending to the sky and leaving the different planets or
while entering it, which are multiples of the gravity of this planet.
And the microgravity field, which is formed within six months of existence in
deep space and in which there is no gravity at all to be in a state of
weightlessness, or upon reaching Mars and the gravity on its surface, which
is 3/8 of the earth's gravity.
This challenge is whether the astronaut can adapt to these changes in gravity
or not, and when returning to Earth's gravity, which is to re-adapt the
different body systems to the original field, but with these different fields of
gravity, the body systems are affected among these bone systems and the
heart and muscles ... without gravity, bone density decreases at a rate of 1%.
The countermeasure for this challenge with the ongoing research into how
the crew adapt with the macro and micro gravity and resistance of
weightlessness and its objective to another challenge like Bone fracture,
cardiovascular and reduced of muscles size and strength during and after
their mission, and to partially treat the imbalance in the space.
Therefore, the countermeasures to confront this challenge lie in not being
directly exposed to cosmic dust, as well as securing space suits and boats during
flights to prevent the entry of such dust to humans or living organisms.
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