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 -
The "Great Filter
" is a hypothetical barrier to explain why civilisations are so unlikely to progress to the point of inter-stellar colonisation that we have not encountered any in 40 years of looking. Maybe humanity has already negotiated the filter - as some massive evolutionary improbability - or perhaps it lies in our future as an almost-certain threat to our existence? We should hold our breath as we look for evidence of life on Mars
posted by rongorongo
on May 12, 2008 -
" It looks as if our Milky Way will be subsumed into its giant neighbour, the Andromeda galaxy...." A (not so) little trove of images of galactic collisions has been released to mark the 18th anniversary of the Hubble telescope's launch. Gravitic Mayhem
posted by Kronos_to_Earth
on Apr 24, 2008 -
The evolution of Mars imaging from orbit: Mariner 4 (1964)
, Mariner 6
and Mariner 7 (both 1969)
, Mariner 9 (1971)
(all NASA), Mars 5 (1973)
(USSR), Viking 1 (1975)
, Viking 2 (1976)
, Mars Global Surveyor (1996)
, Mars Odyssey (2001)
(NASA), Mars Express (2003)
(ESA), up to this spy-quality shot of an active avalanche
taken by NASA's Mars Reconnaissance Orbiter (2005)
posted by Chinese Jet Pilot
on Mar 5, 2008 -
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 -
Who Speaks for Earth?
"After decades of searching, scientists have found no trace of extraterrestrial intelligence. Now, some of them hope to make contact by broadcasting messages to the stars. Are we prepared for an answer?"
posted by homunculus
on Jan 1, 2008 -
Warp Drive, When? "Have you ever wondered when we will be able to travel to distant stars as easily as in science fiction stories?"
posted by amyms
on Dec 15, 2007 -
Growing drugs in space.
If the rainforest runs out of undiscovered medicines, just grow new drugs in space: Wired
reports that "a swaggering Texas investor" wants to turn the International Space Station
into a kind of orbiting drug lab: "If people knew what I already know," he says, "the International Space Station would be considered one of the most valuable resources our world possesses." Think of it as New Jack City
in zero-G – full of weird, crystallized proteins (and billion dollar cures).
posted by BLDGBLOG
on Oct 7, 2007 -