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50th Anniversary of the Starfish Prime Nuclear Weapon Test Today

The Bad Astronomer writes "50 years ago today, the U.S. detonated a nuclear weapon 240 miles above the Pacific Ocean. Called Starfish Prime, it was supposed to help U.S. scientists and the military understand how the Soviets might try to stop incoming nuclear missiles. What it actually did was blow out hundreds of streetlights in Hawaii 900 miles away, damage a half dozen satellites, and create artificial aurorae and intense radiation zones above the Earth. It taught the world what an electromagnetic pulse (EMP) was, and what the effects might be from a powerful solar flare, a nearby supernova, or a gamma-ray burst."

2 of 190 comments (clear)

  1. Not really supernovae and gamma-ray bursts by SirGarlon · · Score: 5, Insightful

    Comparing a man-made nuclear bomb to a gamma-ray burst seems kind of like comparing one pixel on your monitor to the Sun.

    --
    [Sir Garlon] is the marvellest knight that is now living, for he destroyeth many good knights, for he goeth invisible.
  2. Actually? by magarity · · Score: 5, Insightful

    it was supposed to help US scientists and the military understand how the Soviets might try to stop incoming nuclear missiles. What it actually did was

    Thanks for the loaded language; actually, it probably did both. It's nice that now when we know about all the negative effects so we can peer down our nose at the evil scientist puppets of the military but they really didn't know back then. That's why it's called an "experiment".