One day the aliens will communicate with the world. According to a new research, first contacts with aliens may be possible after 1500 years.
Researchers at Cornell University said they reached the conclusion using the Fermi Paradox and Copernican Principle.
The Fermi Paradox describes the fact that there are many Earth-like planets in the Galaxy of the Milky Way, but no more extraterrestrial contacts have ever been made. The Copernican Principle, proposed by Copernicus in the 16th century, indicates that the Earth is not in a privileged or special physical position within the universe, so that extraterrestrial beings can contact us.
Evan Solomonides, a Cornell University student and author of the article, said, "Space is so big, so no extraterrestrial beings have contacted us, but it does not mean that there are no other living beings in space." Solomonides said,
"There may be an alien contact at any moment, but it is likely to be after 1500 years. Until then, even if we are not alone, we may be alone on that day. We always have to wait for future signals, or we can miss them. "
Television and radio signals have traveled in space for the past 80 years and they have reached only 8,531 stars and 3,555 possible Earth-like planets. There are about 200 billion stars in the Milky Way Galaxy. However, according to researchers, even if aliens have received these signals, deciphering them may take a long time. Solomonides also said,
"Even the Milky Way, which is a fairly ordinary size compared to other galaxies, is beyond our imagination for us. We reached too many planets and stars, and by that time we had to reach an alien society. But we never got to it. This explains the Fermi Paradox,"
According to the researchers, after 1500 years, the world's television and radio signals will reach half of the stars and planets in the Milky Way galaxy.
"There is no certainty in this period that we will be in contact with any extraterrestrial entity," Solomonides said. But that does not mean we're alone. We just figure out a possible number, "he said.