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Health & Science3h 55m ago
Apollo astronauts traveling to the Moon experienced flashes and streaks of light in the dark, which were later attributed to cosmic rays from deep space passing through their visual systems.
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Moon, Skylab, Mir, International Space Station
Who
Apollo astronauts, Cornelius Tobias, Apollo 16 and 17 crews
What
Apollo astronauts traveling to the Moon experienced flashes and streaks of light in the dark, which were later attributed to cosmic rays from deep space passing through their visual systems.
When
Sun, 14 Jun 2026 14:55:01 GMT · 3h 55m ago
Where
Moon, Skylab, Mir, International Space Station ·
Why
Cosmic rays from deep space passed through the visual systems of astronauts, causing phosphenes, a sensation of light produced by something other than light entering the eye.
The Frontline Impact
How this affects you
The flashes serve as a perceptible warning of high-energy particles affecting the human body in space, highlighting a significant radiation concern for astronauts on long-duration missions beyond Earth's protective magnetosphere, such as a trip to Mars.
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3 events in this thread- Health & Science3h 55m agoApollo astronauts travelling to the Moon reported seeing flashes and streaks of light in the dark, which were later determined to be caused by cosmic rays from deep space passing through their eyes.Open article
- Currently Reading3h 55m agoApollo astronauts traveling to the Moon experienced flashes and streaks of light in the dark, which were later attributed to cosmic rays from deep space passing through their visual systems.
- Health & Science3h 55m agoApollo astronauts reported seeing flashes and streaks of light in the dark while traveling to the Moon, which were later attributed to cosmic rays from deep space passing through their visual systems.Open article