NASA scientists had been searching everywhere over a year for any proof of life in the neighborhood and distant planets that might indicate alien life. Scientists though believe they will be found in 20 years if they really do exist. Life forms that were recently found had shown no sophisticated development that supports alien existence. The new study that involved 100,000 galaxies came out negative of any alien life. There are at least one hundred billion galaxies in the universe according to research. The number investigated can be considered as a drop in the bucket.
Data of a space-based infrared telescope from NASA’s WISE observatory were examined by researchers at Penn State University. They tried finding any proof that might indicate alien life which resulted with no certain evidences.
“The idea behind our research is that, if an entire galaxy had been colonized by an advanced spacefaring civilization, the energy produced by that civilization’s technologies would be detectable in mid-infrared wavelengths — exactly the radiation that the WISE satellite was designed to detect for other astronomical purposes,” stated Jason T. Write lead investigator and assistant professor of astronomy and astrophysics at Penn State’s Center for Expoplanets and Habitable Worlds.
Infrared detection was first suggested by Freeman Dyson , a physicist who theorized in a published paper that a sophisticated alien civilization would likely use most of its sun’s energy in which the process causes emission of light outward in slight amount that intensify levels of infrared radiation. The data taken from NASA’s WISE satellite made it clear that Dyson’s theory is attainable.
“Whether an advanced spacefaring civilization uses the large amounts of energy from its galaxy’s stars to power computers, space flight, communication, or something we can’t yet imagine, fundamental thermodynamics tells us that this energy must be radiated away as heat in the mid-infrared wavelengths,” Wright stated. “This same basic physics causes your computer to radiate heat while it is turned on.”
Finding alien life may have resulted negative, yet 50 galaxies showing high levels of mid-infrared radiation has caught researcher’s attention. Scientist are headed towards investigating the source of such inconsistency.
“This research is a significant expansion of earlier work in this area,” stated Brendan Mullan, director of the Buhl Planetarium at Pittsburgh’s Carnegie Science Center. “The only previous study of civilizations in other galaxies looked at only 100 or so galaxies, and wasn’t looking for the heat they emit. This is new ground.”