This model may serve as the basis for future investigation into how well the human cardiovascular system can tolerate prolonged space travel and life on Mars. A mathematical model created by space medicine experts at The Australian National University (ANU) could be used to predict whether an ast
could be used to predict whether an astronaut would be able to safely voyage to Mars and carry out their mission responsibilities once there.
Dr. Lex van Loon, a Research Fellow from the ANU Medical School, said although there are multiple risks associated with traveling to Mars, the biggest concern is prolonged exposure to microgravity – near zero gravity – which, combined with exposure to damaging radiation from the Sun, could cause “fundamental” changes to the body.
According to Dr. Emma Tucker, an astronomer and emergency medicine registrar, extended exposure to zero gravity might lead the heart to grow lazy since it doesn’t have to work as hard to overcome gravity in order to pump blood throughout the body. Because of the communication delay between Mars and Earth, astronauts must be able to perform their tasks without immediate help from support teams. According to Dr. van Loon, this window of radio silence varies depending on the positioning of the Sun, Earth, and Mars in their orbits, but it can last at least 20 minutes.
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