Submission + - SETI reasearch with Very Large Baseline Interferometry (bbc.co.uk)
An anonymous reader writes: Radio astronomers in Australia have tried a to detect a transmission from Gliese 581 using Very Large Baseline Interferometry with the Australian Large Baseline Array http://arxiv.org/abs/1205.6466. The star Gliese 581 (Gl581) is 20 light years away and is orbited by at least two planets in habitable zone. While the astronomers haven't detected any signal from Gl581, they have derived a limit on the strength of the signal that could be detected from Earth. In simple terms, if a transmitter like Arecibo would have been in operation in the Gl581 system and beaming in our direction, the signal would have been picked.
This is a breakthrough method to examine extraterrestrial transmissions and will be implemented with the Square Kilometre Array, the gigantic radio interferometer that will be built in South Africa and Australia. With this technique, the SKA will lift the SETI exploration to an amazing new regime.
This is a breakthrough method to examine extraterrestrial transmissions and will be implemented with the Square Kilometre Array, the gigantic radio interferometer that will be built in South Africa and Australia. With this technique, the SKA will lift the SETI exploration to an amazing new regime.
