Are Aliens Hiding From Us?

Are Aliens Hiding From Us?

After observing 100,000 galaxies using NASA’s WISE orbiting observatory, scientists concluded that there is no evidence of ET civilizations.

Jason T. Wright, an assistant professor of astronomy and astrophysics at the Center for Exoplanets and Habitable Worlds at Penn State University explained that “The idea behind our research is that, if an entire galaxy had been colonized by an advanced space-faring civilization, the energy produced by that civilization’s technologies would be detectable in mid infra-red wavelengths—exactly the radiation that the WISE satellite was designed to detect for other astronomical purposes.”

Moreover, he added that “Whether an advanced space-faring 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-infra-red wavelengths. This same basic physics causes your computer to radiate heat while it is turned on.”

Freeman Dyson’s theory in 1960s stated that ET could be detected by telltale evidence of their mid infra-red emissions. And this is how WISE satellite works when it measures the radiation emitted in the space.

After searching, Wright and his partners said “We found about 50 galaxies that have unusually high levels of mid infra-red radiation. Our follow-up studies of those galaxies may reveal if the origin of their radiation results from natural astronomical processes, or if it could indicate the presence of a highly advanced civilization.”

They also found a bright nebula near the star 48 Librae and a group of objects that seams black when observed by telescopes that only see visible light. Scientists believe they are young star in the forming process inside an undiscovered molecular cloud. However, more research should be done in the future to study carefully about them.

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After all, Wright came to a conclusion “We should be able to push our sensitivity to alien technology down to much lower levels, and to better distinguish heat resulting from natural astronomical sources from heat produced by advanced technologies. This pilot study is just the beginning.”

Apparently, our understanding of outer space is still limited and scientists will need to explore more in the future.