New studies suggested using Light as a lead to the alien’s civilization aside from intercepting Radio waves.
Abraham Loeb and Edwin Turner from Harvard and Princeton stated that “a light source comparable to a bright city on a distant planet may observed from Earth” on Universitytoday.com
We can be able to observe another planet through its overall brightness on a certain distance.
Through flux and orbital changes, astronomers will be able to measure the orbital perimeter of KBOs (Kuiper Belt Objects) precisely.
Our current telescope and surveys would be able to observe this amount of light at the edge of Solar System. KBOs spectrum can be measured by a large telescope to verify if they are lighted up by an artificial lighting using a logarithmic slope.
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