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asteroids

  1. Notrump

    Mile-Wide Asteroid 52768 (1998 OR2) Near Earth on April 29

    Mile-wide Asteroid 52768 (1998 OR2) is expected to pass Earth by only 0.0421 AU on 2020 APR 29 at 09.59 UT (04.59 CDT). The estimated greatest brilliance by JPL is magnitude +10.8 on MAY 01. I’ve created a chart and ephemeris that can be viewed at https://www.CurtRenz.com/asteroids.html...
  2. B

    Look out, Asteroid to hit Earth in 2046

    Were doomed, it's almost as big as the one that didn't do in the big dinosaurs. https://skepticalscience.com/news.php?n=4422
  3. J

    Asteroid diameters: scientific controversy?

    I couldn't see that this topic has already been covered here, so I started this new thread. If it's already a topic, could a mod please merge it with the appropriate thread? Thanks. Nathan Myhrvold is pretty well-known, I hope. A month or so ago there was a bit of a flap over what he wrote...
  4. DeathDart

    Hyper Velocity Asteroids and Mantle Plumes

    A hyper velocity asteroid impact at a velocity greater than 100 kms can easily punch through the crust and penetrate 100’s of miles into the mantle. At some depth in the Mantle the material appears to be elevated in Uranium and REE. Mantle plumes are the origin for the Uranium found in black...
  5. steve s

    Jupiter hit again.

    It appears that Jupiter has been hit by another asteroid. http://cosmiclog.nbcnews.com/_news/2010/06/03/4459598-something-hit-jupiter-again?lite Video here... http://www.flickr.com/photos/19299984@N08/7976507568 Steve S
  6. T

    Massive asteroid impact in 2036?

    http://www.csmonitor.com/Science/2011/0207/Apophis-asteroid-will-probably-almost-certainly-not-smash-into-Earth-say-scientists “Technically, they’re correct, there is a chance in 2036 [that Apophis will hit Earth]," said Donald Yeomans, head of NASA’s Near-Earth Object Program Office. However...
  7. Morrigan

    Phil Plait's Bad Universe

    Has anyone watched this yet? I saw the first episode (I think there's going to be 3 in the mini-series, shown on Discovery Channel) and it was pretty neat. Phil Plait sounded pretty alarmist in the episode, but my guess is that he's trying to get more people interested in the stuff (not a bad...
  8. Cainkane1

    What happens to asteroids and comets when they hit Jupiter?

    Do they become part of Jupiters molten core or what. I guess comets become water vapor in Jupiters atmosphere. Also could life exist in Jupiters atmosphere?
  9. JAStewart

    "It's official: An asteroid wiped out the dinosaurs"

    http://news.yahoo.com/s/nm/20100304/sc_nm/us_dinosaurs_asteroid
  10. Cainkane1

    Which is worse? An asteroid striking the earth or a meteor striking the earth?

    I've heard that a meteor striking the earth is worse than an asteroid but I forgot why.
  11. sophia8

    Energy of an Asteroid?

    Last night, me and Him were watching a prog on the asteroid/comet that apparently did for the dinosaurs. And Him then came up with an interesting question: If a dino-killer type asteroid were today approaching Earth, and we had the technology to blast it into a huge cloud of equal-sized dust...
  12. Cainkane1

    Ok we've discussed Martian colonys. Any other candidates?

    Ok Mars seems to be iffy. How about a colony on one of Jupiter or Saturns moons? They have plenty of water so how about those places?

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