Solar energetic paeticles an astronauts5/25/2023 ![]() In the film, the astronauts’ habitat on Mars shields them from radiation, and indeed, radiation shielding will be a crucial technology for the voyage. ![]() While the mission in the film is fictional, NASA has already started working on the technology to enable an actual trip to Mars in the 2030s. “The Martian” film highlights the radiation dangers that could occur on a round trip to Mars. Today, as a result of extensive space radiation research, we have a much better understanding of our space environment, its effects, and the best ways to protect astronauts-all crucial parts of NASA’s mission to send humans to Mars. In the early days of human space flight, scientists were only just beginning to understand how events on the sun could affect space, and in turn how that radiation could affect humans and technology. ![]() Luckily, the Apollo 16 crew had returned to Earth just five months earlier, narrowly escaping this powerful event. Mostly protons, with a few electrons and heavier elements mixed in, this wash of quick-moving particles would have been dangerous to anyone outside Earth’s protective magnetic bubble. ![]() Along with a gigantic burst of light in nearly all wavelengths, this event accelerated a wave of energetic particles. 7, 1972, in the heart of the Apollo era, an enormous solar flare exploded from the sun’s atmosphere.
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