[SKRIVA] Forskare nära bevisa tidigare liv på Mars
- From: Ahrvid Engholm <ahrvid@xxxxxxxxxxx>
- To: <skriva@xxxxxxxxxxxxx>, <sverifandom@xxxxxxxxxxxxxxxxxxxx>
- Date: Fri, 15 Jan 2010 18:02:18 +0100
Enligt denna notis (daterad 13/1) säger sig NASA-forskare vara "mycket, mycket
nära" att bevisa att det tidigare i historien funnits mikrobiologiskt liv på
Mars:
http://www.linkswarm.com/viewlink-50834.html
"Scientists have been reexamining the controversial Allen Hills meteorite since
it sparked reaction from both NASA and the White House in 1996. But now better
instruments have turned up possible Martian fossils inside two more meteorites,
including a chunk of space rock that has sat inside the British Museum of
Natural History in London for almost 100 years.
The scientific teams are "very, very close to proving there is or has been life
[on Mars]," said David McKay, chief of astrobiology at the NASA Johnson Space
Center in Houston, in a Spaceflight Now interview.
Such life would have likely come from a planet-wide underground network of
microorganisms that first emerged 3.6 billion years ago on Mars, scientists
say. That development would have paralleled the simple life forms emerging on
Earth at around the same time.
New tools for the investigation include a nifty Ion Microprobe that can fire
streams of ions onto micro-fossil samples. The ions transform the sample into
plasma that can be analyzed via spectrometer for each chemical or mineral part."
--Ahrvid
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