A Massive Solar Storm was Detected on Earth, Mars, and the Moon universetoday storybywill
A coronal mass ejection, as seen by the ESA/NASA SOHO mission on October 28th, 2021. Credit: ESA/NASA
This means solar particles reach the surface regularly and even produce secondary radiation . According to measurements made by NASA’s LRO mission from lunar orbit, the solar event was rather weak, equivalent to an absorbed radiation dose of only 31 milligray or 31 millisieverts . Meanwhile, therover, obtaining measurements from orbit and the surface, recorded doses of 9 and 0.3 three mGy – a difference of a factor of 30.
Astronauts are exposed to radiation regularly when they go to space, but the hazard of prolonged exposure increases dramatically beyond Low Earth Orbit . This includes the risk of exposure to solar radiation and cosmic rays, which becomes elevated beyond Earth’s magnetic field. But there is also the risk of huge outbursts of SEPs caused by “coronal mass ejections” , also known as “solar flares.”
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