50 years ago, cosmic rays may have caused Apollo astronauts to see lights

Sunday, May 21, 2023 - 14:32 in Astronomy & Space

Light flashes no danger for short space flights – Science News, May 12, 1973 The light flashes and streaks seen by [Apollo] astronauts have long been attributed to high-energy, heavy cosmic particles (HZE) passing through the eyes…. A new report … concludes that the particles are not a serious hazard for short trips to the moon or Earth-orbital missions such as Skylab. Update The mechanism behind the flashes described by Apollo astronauts remains a mystery. Perhaps the particles, which are components of c­osmic rays, emit radiation as they pass through part of the eye. Or perhaps they trick nerve cells to create the illusion of light. However the flashes happen, they are still an issue for astronauts. In 2006, about 80 percent of NASA and European Space Agency astronauts reported experiencing the flashes. How the phenomenon impacts astronaut health after months or years in deep space is unclear. As NASA plans crewed missions...

Read the whole article on Sciencenews.org

More from Sciencenews.org

Latest Science Newsletter

Get the latest and most popular science news articles of the week in your Inbox! It's free!

Check out our next project, Biology.Net