aliquis
2006-10-20, 11:05
Det mer normala på jorden är ju att vatten och solljus är drivkraften bakom allt liv på jorden, men nu har man funnit bakterier som lever på vatten och radioaktivitet istället:
"A colony of bacteria found 2.8 kilometers below the Earth's surface in a South African gold mine is able to sustain itself without energy from the Sun. While sub-surface colonies of microorganisms utilizing sulfur (mostly near deep sea hydrothermal vents) is not new, this particular colony is unusual. The colony does it by relying on radioactive uranium to split water into hydrogen gas. Thus, instead of solar energy and photosynthesis, this species relies on radioactive materials and sulfur/hydrogen to facilitate its energy needs. There is some speculation about life on other planets in the article as well."
http://newsinfo.iu.edu/news/page/normal/4229.html
http://science.slashdot.org/article.pl?sid=06/10/20/0625206
"A colony of bacteria found 2.8 kilometers below the Earth's surface in a South African gold mine is able to sustain itself without energy from the Sun. While sub-surface colonies of microorganisms utilizing sulfur (mostly near deep sea hydrothermal vents) is not new, this particular colony is unusual. The colony does it by relying on radioactive uranium to split water into hydrogen gas. Thus, instead of solar energy and photosynthesis, this species relies on radioactive materials and sulfur/hydrogen to facilitate its energy needs. There is some speculation about life on other planets in the article as well."
http://newsinfo.iu.edu/news/page/normal/4229.html
http://science.slashdot.org/article.pl?sid=06/10/20/0625206