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The sun fires off its biggest solar flare in more than 3 years https://www.space.com/sun-fires-off-solar-flare-m4-worst-three-years
https://spaceradiation.eu/my-first-space-related-computer-program-the-astroicek-for-maps-of-the-sky/
https://spaceradiation.eu/radiation-on-the-moons-surface/