| Subject: S ET Technology / SETT ? |
| From: "Jan-H. Raabe,Student TU Braunschweig," <j.raabe@tu-bs.de> |
| Date: 13/04/2005, 13:22 |
| Newsgroups: alt.paranet.ufo |
Search for Extraterr. Technology?
New Scientist
http://www.newscientist.com/article.ns?id=mg18624944.800
Look out for giant triangles in space
* 12 April 2005
* Exclusive from New Scientist Print Edition
* Marcus Chown
THE search for extraterrestrial intelligence (SETI) could be taking the
wrong approach. Instead of listening for alien radio broadcasts, a better
strategy may be to look for giant structures placed in orbit around nearby
stars by alien civilisations.
"Artificial structures may be the best way for an advanced extraterrestrial
civilisation to signal its presence to an emerging technology like ours,"
says Luc Arnold of the Observatory of Haute-Provence in France. And he
believes that the generation of space-based telescopes now being designed
will be able to spot them.
Arnold has studied the capabilities of space-based telescopes such as the
European Space Agency's forthcoming Corot telescope and NASA's Kepler.
These instruments will look for the telltale dimming of a star's light when
a planet passes in front of it. They could also identify an artificial
object the size of a planet, such as a lightweight solar sail, says Arnold.
His work will be published in The Astrophysical Journal (www.arxiv.org
astro-ph/0503580).
[snip]