The Atlantic has an
interesting article about the high probability of "space rocks" hitting the earth, possibly as high as a 1 in 10 chance of a major catastrophe each century. Not a new theme, but the article has some new developments suggesting it is more common than once thought. Includes a 10 minute video.
posted by stbalbach
on May 30, 2008 -
19 comments
There's a slight chance that
an asteroid could impact Mars at the end of this month. Usually, collisions between heavenly bodies have vanishingly small odds (a million to one, say), but the chances on this one have been steadily improving, from 350-to-1 to 75-to-1 to
25-to-1 (link to Washington Post). Scientists say that this could be comprable to the famous
Tunguska blast in Siberia a hundred years ago (not to be confused with
this other Tunguska blast).
[more inside]
posted by math
on Jan 7, 2008 -
37 comments
NASA's Chandra X-Ray Observatory
recently detected [reg required] the largest explosion ever detected in the universe: an eruption releasing the energy of hundreds of millions of
gamma ray bursts. Just to put it in perspective, a single
GRB releases enough radiation to
wipe out just about everything human beings would require for survival in a 1000 light year radius. (The Milky Way spans ~100,000 light years, while the
United Federation of Planets spans about 8,000). Arthur C. Clarke has gone so far as suggesting that GRBs might be one of the reasons for Extra-Terrestrial silence:
Gamma Ray Bursts are so large and inescapable, a single one would wipe out even an enormous galactic empire. Makes
killer asteroids seem downright
quaint.
posted by absalom
on Jan 8, 2005 -
24 comments
Duck! An asteroid large enough to wipe out a country that was discovered a month ago will pass less than twice the Moon's distance from the earth. Meanwhile the British have selected a site for their
near Earth object information centre. Hopefully they will have a direct line to Bruce Willis, just in case.
posted by homunculus
on Jan 6, 2002 -
23 comments
NEAR shoemaker lands and survives. The NEAR Shoemaker spacecraft touched down on a barren space rock called Eros on Monday, in history’s first attempt to land an object on an asteroid. Scientists said the probe still appeared to be sending signals back to Earth after making contact, hinting that the car-sized probe survived the descent. The speed at impact was between 1.5-1.8 m/s. This marks the first time that a US spacecraft was the first to land on another body of the solar system. And, if the server is back up, it's worth checking out
the project's website.
posted by warhol
on Feb 12, 2001 -
11 comments