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The hunt for other intelligent civilisations has a new technique in its arsenal, but its first use has turned up no signs of alien broadcasts.
Australian astronomers used "very long baseline interferometry" to examine Gliese 581, a star known to host planets in its "habitable zone".
The hunt for aliens is fundamentally a vast numbers game, so the team's result should come as no surprise. . . .
. . . Gliese 581, a red dwarf star about 20 light-years away, is a particularly interesting candidate for the Search for Extraterrestrial Intelligence, or Seti.
It has six planets, two of which are "super-Earths" likely to be in this habitable zone.
So astronomers at Curtin University's International Centre for Radio Astronomy Research in Australia, put one of radio astronomy's highest-resolution techniques to work, listening in to the star system. . . .
. . . More
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