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'By far the greatest danger of Artificial Intelligence is that people conclude too early that they understand it'

 

Eliezer Yudkowsky

Enceladus: home of alien lifeforms?

RATE THIS! +1
Posted in Science on 30th Jul, 2012 05:34 PM by AlexMuller

Enceladus is little bigger than a lump of rock and has appeared, until recently, as a mere pinprick of light in astronomers' telescopes. Yet Saturn's tiny moon has suddenly become a major attraction for scientists. Many now believe it offers the best hope we have of discovering life on another world inside our solar system.

 

The idea that a moon a mere 310 miles in diameter, orbiting in deep, cold space,  1bn miles from the sun, could provide a home for alien lifeforms may seem extraordinary. Nevertheless, a growing number of researchers consider this is a real prospect and argue that Enceladus should be rated a top priority for future space missions.

 

This point is endorsed by astrobiologist Professor Charles Cockell of Edinburgh University. "If someone gave me several billion dollars to build whatever space probe I wanted, I would have no hesitation," he says. "I would construct one that could fly to Saturn and collect samples from Enceladus. I would go there rather than Mars or the icy moons of Jupiter, such as Europa, despite encouraging signs that they could support life. Primitive, bacteria-like lifeforms may indeed exist on these worlds but they are probably buried deep below their surfaces and will be difficult to access. On Enceladus, if there are lifeforms, they will be easy to pick up. They will be pouring into space."

 

The cause of this unexpected interest in Enceladus – first observed by William Herschel in 1789 and named after one of the children of the Earth goddess Gaia – stems from a discovery made by the robot spacecraft Cassini, which has been in orbit of Saturn for the past eight years. The $3bn probe has shown that the little moon not only has an atmosphere, but that geysers of water are erupting from its surface into space. Even more astonishing has been its most recent discovery, which has shown that these geysers contain complex organic compounds, including propane, ethane, and acetylene.

 



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Comments

Author: Guest
Posted: 2012-07-30
+0
It seems that microbes are all around universe but complex forms of life are very few
1 Replies
Author: Guest
Posted: 2012-07-30
+0
Reply
Author: Guest
Posted: 2012-07-30
+0
Yes, that idea needs to be shown Reply


 

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