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Russian Meteor: Chelyabinsk Asteroid Had Violent Past 24

Posted by samzenpus
from the use-your-words dept.
astroengine (1577233) writes "The asteroid that hit Earth last year and exploded over Chelyabinsk, Russia, had a prior crash record. Fragments of the asteroid recovered after the powerful Feb. 15, 2013, airburst show it contained an unusual form of the mineral jadeite embedded in glassy structures known as shock veins. Shock veins typically form when the parent body of a meteor or asteroid collides with a larger object in space. Heat and pressure from the impact cause rock to melt. It later reforms bearing vein-shaped patterns. 'Impact-induced jadeite has been found from other shocked meteorites. However, a unique point of the Chelyabinsk jadeite is that it seems to have crystallized from melt. To my knowledge, previously reported jadeite in other meteorites is considered to have formed (by solid-state reaction) without melting,' graduate student Shin Ozawa, with Japan's Tohoku University, wrote in an email to Discovery News."
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Russian Meteor: Chelyabinsk Asteroid Had Violent Past

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  • So theres other parts of it somewhere out there

    • by Tablizer (95088)

      So theres other parts of it somewhere out there

      Hope they are not looking for mommy...

    • by wallsg (58203)

      I used to play Asteroids. I wasn't very good at it.

      • by Anonymous Coward
        I could make a quarter last so long that John (1979 Apu) had to throw me out of the 7-11 (1979 Kwik-E-Mart)
    • So theres other parts of it somewhere out there

      Slashdot's DRM bot has flagged your post as a violation of the DMCA. Don't EVAR post the last three words of that sentence again, or we will report you to the MPAA. SWAT teams WILL be mobilized.

      And (just to be safe) don't even speak the last three words of that sentence, mkay?

      (so far, you're safe to think those words, but we're working on that)

    • by Anonymous Coward

      So theres other parts of it somewhere out there

      I don't study asteroids or meteorites for a living but the summary sounds like a whole lot of speculation to me. Perhaps there are lots of different ways the rock could melt and then reform.

  • Once a hoodlum always a hoodlum

    • Yes, just like on the road. If a car has dents and smashes, it is probably going to collect more and the next one may be from you!
  • The Force? (Score:2, Funny)

    by Anonymous Coward

    Is Jediite created by The Force?

  • ...it too became an abuser, breaking windows through out the city in one hellish tantrum.

  • It was clearly steered at us, this is proof!
  • This isn't really a surprise because an interstellar impact is probably what placed it into the path of our orbit to begin with. But hey, I'm no astronomer/astrophysicist/whatever.

  • A fair number of Russians believe, the "asteroid" was, actually, an American weapon...

    You can laugh at fellow American kooks, who suspect American government at everything, but the paranoia — against the same American government — is even wider spread over there.

    Even earthquakes and tornadoes are firmly believed by some (or many?) to be triggered by the evil Pentagon or Gosdep (which is what "Department of State" translates as in Russian). I'd offer links, but they are all in Russian...

    • What is a "fair number"?

    • ...there could have been more territory the Russkies could have added. If only, instead of a diameter of 17 meters, it had been a diameter of 17 kilometers, and dropped along the Russo-Kazakh border, the Russkies could have had all of it, and annexed a bit of Kazakh territory to go w/ it, and Vlad could have had more land to show his people and keep his popularity in the 90%+

[Crash programs] fail because they are based on the theory that, with nine women pregnant, you can get a baby a month. -- Wernher von Braun

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