An ambitious new search for alien life is hunting for light signals for advanced civilizations.
The Trillion Planet Survey has begun using a suite of telescopes to scour the nearby galaxy of Andromeda as well as other galaxies including our own، as the Daily Mail said.
Researchers hope to spot a 'light signal' beamed by an alien civilization - and say we may have been looking in the wrong place until now. The ambitious experiment، run almost entirely by students at at Emory University، uses a suite of telescopes، a 'pipeline' of software to process images and a little bit of game theory.
'First and foremost، we are assuming there is a civilization out there of similar or higher class than ours trying to broadcast their presence using an optical beam، perhaps of the 'directed energy' arrayed-type currently being developed here on Earth،' said lead researcher Andrew Stewart، a student at Emory University and a member of Lubin's group.
'Second، we assume the transmission wavelength of this beam to be one that we can detect. 'Lastly، we assume that this beacon has been left on long enough for the light to be detected by us.
'If these requirements are met and the extraterrestrial intelligence's beam power and diameter are consistent with an Earth-type civilization class، our system will detect this signal.'
For the last half-century، the dominant broadcasts from Earth has taken the form of radio، TV and radar signals، and these are what projects such as the Search for Extraterrestrial Intelligence (SETI) Institute.
However، recent advances have meant we can now search via optical signals that allow for vastly longer range detection.
'In no way are we suggesting that radio SETI should be abandoned in favor of optical SETI،' Stewart added. 'We just think the optical bands should be explored as well.'