Aliens are like buses, you spend ages waiting for one and then 234 come along at once. Or at least, that's what two astronomers from the Laval University in Quebec are suggesting.
Ermanno Borra and his graduate student Eric Trottier have analyzed over 2.5 million stars and galaxies for pulses of light emitted at regular intervals and discovered it in 234 stars similar in size to our Sun. The team believes that alien civilizations are behind those signals.
The researchers looked at the Fourier Transform (FT) of the light spectrum. The FT is a mathematical tool that allows us to work out where the components of a signal come from. If the light is a milkshake, by using the FT you get the recipe.
The FT analysis has found periodic modulated components which, according to the scientists, are caused by the super quick light pulses (less than a trillionth of a second) generated by Extraterrestrial Intelligence (ETI).
In the paper, available from the Publications of the Astronomical Society of the Pacific, they discard every other explanation such as instrumental effects, rotation of molecules, rapid stellar pulsations, and peculiar chemistry.
"We find that the detected signals have exactly the shape of an ETI signal predicted in the previous publication and are therefore in agreement with this hypothesis," the researchers wrote in the paper.
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