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Post Info TOPIC: Detection of Extra-terrestrial Life


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Stephen Hawking has warned that we might do better to curb our search for extraterrestrial life before something unwanted finds us first. Here, Lewis Darnell considers why the search for extraterrestrials fires the imagination.
One of the prime drivers for space exploration, both in terms of scientific return and in firing the interest of the public, is astrobiology and the search for life beyond our homeworld.

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Drake wants off-world listening post for alien messages

Frank Drake, the founder of the Search for Extraterrestrial Intelligence (SETI), wants to take the search for aliens further: about 82 billion kilometres away, in fact.
At this point in space, electromagnetic signals from planets orbiting distant stars would be focused by the gravitational lensing effect of our sun, making them, in theory, more easily detected. Drake wants to send spacecraft there in a bid to overhear alien communications, which would be too faint for telescopes on Earth to detect.

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Could the world's religions survive the discovery of extraterrestrial life? Or would their beliefs be so shaken that they would eventually collapse?
A survey (pdf) discussed on Tuesday at the Royal Society in London suggests religion would survive.
The survey, designed by Ted Peters, a professor of Systematic Theology at the Pacific Lutheran Theological Seminary and the Graduate Theological Union in Berkeley, California, asked 1300 people - both religious and non-religious - whether they thought the discovery of extraterrestrial intelligence would shake their individual belief, the strength of their religion as a whole or would adversely affect the beliefs of other religions.

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Satellite TV and the digital revolution is making humanity more and more invisible to inquisitive aliens on other planets, the world's leading ET hunter has said.
That might be good news for anyone who fears an "Independence Day"-style invasion by little green men, but it is also likely to make the search for extra-terrestrial intelligence by Earthly scientists harder, Dr Frank Drake believes.

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Paul Davies, a physicist at Arizona State University, will suggest tomorrow that the search for extra-terrestrial life should be focused right under our noses. His audience will include representatives from Nasa, the European Space Agency and the UN Office for Outer Space Affairs, while Lord Rees, President of the Royal Society and Astronomer Royal, will also lead one of the sessions.
Addressing the meeting to mark the 50th anniversary of the Search for Extra-Terrestrial Intelligence (SETI) programme - a quest that has fallen far short of its objectives - Professor Davies will argue that demonstrating that life has appeared more than once on Earth would be the best evidence yet that it must exist elsewhere in the Universe.

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The Detection of Extra-terrestrial Life and the Consequences for Science and Society, Meeting

Start: 9.00am, 25 January 2010
End: 5.00pm, 26 January 2010
London, United Kingdom


Organised by Dr Martin Dominik and Professor John Zarnecki

Astronomers are now able to detect planets orbiting stars other than the Sun where life may exist, and living generations could see the signatures of extra-terrestrial life being detected. Should it turn out that we are not alone in the Universe, it will fundamentally affect how humanity understands itself - and we need to be prepared for the consequences.

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