But the claim was never widely accepted. Other scientists countered that the shapes were ambiguous and that the complex carbon-based molecules could have been produced without life, since they are also found in chunks of asteroids that fall to Earth as meteorites, for example.
And some argued that the carbon in the meteorite could have been deposited in very harsh conditions, involving water at more than 150 °C. Even the hardiest known terrestrial microbes die above about 120 °C.
But a new analysis suggests the water involved was cool enough to allow for life, which at least keeps open the possibility of fossilised life in the meteorite. The study was led by Paul Niles of NASA Johnson. Neither he nor any of the other team members were part of the 1996 life claim.
A rampaging fire in the Angeles National Forest in southern California is threatening a historic observatory at the summit of Mount Wilson, as well as a dense crowd of television transmitters there.
The "Station Fire" fire began on Wednesday afternoon but has spread quickly, doubling in size overnight, to an area covering more than 345 square kilometres. With tongues of flame stretching about 25 metres long, the fire is only 5 per cent contained and will likely take another week to contain completely.
By Sunday evening, it had moved to within 3.2 km of Mount Wilson Observatory. On Monday, fire officials said fire had not reached the area, but they said the area still remained highly vulnerable.
Fire fighters were ordered to withdraw from Mount Wilson on Monday morning because it was too dangerous for crews to be in the area, according to the Los Angeles Times. Flame retardant will instead be dropped on the mountain from planes.
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And some argued that the carbon in the meteorite could have been deposited in very harsh conditions, involving water at more than 150 °C. Even the hardiest known terrestrial microbes die above about 120 °C.
But a new analysis suggests the water involved was cool enough to allow for life, which at least keeps open the possibility of fossilised life in the meteorite. The study was led by Paul Niles of NASA Johnson. Neither he nor any of the other team members were part of the 1996 life claim.
A rampaging fire in the Angeles National Forest in southern California is threatening a historic observatory at the summit of Mount Wilson, as well as a dense crowd of television transmitters there.
The "Station Fire" fire began on Wednesday afternoon but has spread quickly, doubling in size overnight, to an area covering more than 345 square kilometres. With tongues of flame stretching about 25 metres long, the fire is only 5 per cent contained and will likely take another week to contain completely.
By Sunday evening, it had moved to within 3.2 km of Mount Wilson Observatory. On Monday, fire officials said fire had not reached the area, but they said the area still remained highly vulnerable.
Fire fighters were ordered to withdraw from Mount Wilson on Monday morning because it was too dangerous for crews to be in the area, according to the Los Angeles Times. Flame retardant will instead be dropped on the mountain from planes.
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