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NASA Discovers Third Radiation Belt Circling Earth

An anonymous reader sends word that NASA scientists using the Relativistic Electron Proton Telescope (REPT) about the Van Allen Probes have discovered a third radiation belt surrounding Earth. Scientists have been aware of the Van Allen radiation belts since the 1950s, but it was thought that there were only two of them. The probes were sent up to simply map the belts in fine detail; the discovery of a third belt was a complete surprise. Deputy mission scientist Shri Kanekal said, "By the fifth day REPT was on, we could plot out our observations and watch the formation of a third radiation belt. We started wondering if there was something wrong with our instruments. We checked everything, but there was nothing wrong with them. The third belt persisted beautifully, day after day, week after week, for four weeks." Part of the reason they caught a glimpse of this belt was that they turned the REPT on early, so it would overlap with another probe that had reached end-of-life and was about to de-orbit. If they hadn't decided to do so, or if the REPT hadn't worked perfectly, we still might be in the dark about a third Van Allen belt.

9 of 70 comments (clear)

  1. Old Man Earth is getting old by mcgrew · · Score: 5, Funny

    Maybe he should trade one of those belts for a pair of suspenders?

  2. Gratifying - by Darth+Snowshoe · · Score: 5, Interesting

    I worked on this spaceship for ~3 years. Let me say that it's very gratifying that it found something, and especially that it found something nobody was expecting. I'm much relieved.

    1. Re:Gratifying - by geekoid · · Score: 5, Funny

      where is the:
      +1 worked on actual spacecraft mod?

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  3. Van Allen belts...Voyage to the Bottom of the Sea by dywolf · · Score: 3, Interesting

    Reminds me of one of my favorite movies.
    http://en.wikipedia.org/wiki/Voyage_to_the_Bottom_of_the_Sea
    Yes, I know, the plot is typical 50's non-science (using a nuclear missile to amputate the Van Allen belts from earth because they caught fire....). But i still like it.

    --
    The guy who said the election was rigged won the presidency with the second-most votes.
  4. Re:More Proof by K.+S.+Kyosuke · · Score: 4, Funny

    More proof that man never went to the moon.

    The Apollo trans-lunar trajectories skimmed that region of space almost completely. Your silly comment is like blaming Columbus for not having discovered Australia.

    --
    Ezekiel 23:20
  5. Meanwhile on CNN... by Kaenneth · · Score: 5, Funny

    Was this 3rd belt caused by Fukashima or Global Warming?

  6. Re:So let's see... by ackthpt · · Score: 3, Funny

    We've got the Van Allen belt... what are the other two, Van Morrison and Van Johnson?

    the one responsible for lightning is Van de Graaff

    --

    A feeling of having made the same mistake before: Deja Foobar
  7. Re:Interesting by Antipater · · Score: 4, Informative

    The third belt has not always been there, nor is it there now. It was blasted away by a solar shock wave a few weeks after they noticed it. The guess is that a solar shock wave is what created it in the first place, too.

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    Everything is better with chainsaws.
  8. Re:How many of these are not artificial? by idontgno · · Score: 4, Informative

    And even when we do, the radiation belt created doesn't last long. Five years in the case of the Starfish Prime artificial belt. Probably because the belt isn't caused by or reinforced by solar particle flux, so the trapped particles leak over time.

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