Scientists looking for life on other planets have been eavesdropping on a couple of potential life-bearing planets about 20 light-years away, but the result so far has been a complete silence.
The scientists in question are from the Australian SETI, who last week announced their results from listening in on two planets in the Gliese 581 system.
Using the Australian Long Baseline Array radio telescope facilities across Australia, the scientists listening for radio transmissions in the Gliese 581 system. The technique used is caleld the very long baseline interferometry (VLBI) and it is the first time it has been used to target a specific star.
Gliese 581 is a red dwarf star 20 light-years from our Solar system. The star is circled by at least six planets, two of wich are thought to orbit it within what scientists call the ‘habitable zone’.