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Eclipse-watchers: looking at 99.9% totality is unsafe!

web.archive.org Total solar eclipse of April 8, 2024

On April 8, 2024, part of Canada will observe a total solar eclipse. When the Moon aligns perfectly between Earth and the Sun, many spectators will be plunged into temporary darkness.

Total solar eclipse of April 8, 2024

Safety tips:

  • Only use special eclipse glasses; regular sunglasses aren't safe
  • Wait for 100% totality before taking off your eclipse glasses. (If you don't have eclipse glasses, wait for totality before looking at all)
  • Have a timer prepared on your phone set to the duration of the eclipse at your location, so you know when to put your glasses back on.
  • When the sun is mostly (but not fully) eclipsed, it will likely not feel painful to look at it, but it will still damage your eyes permanently.
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