The Universe is defined as everything that physically exists, including all forms of matter, energy, and momentum. A galaxy is a massive, gravitationally bound system that consists of stars and stellar remnants. Over 100 billion galaxies exist in the observable universe. In 1963, Ohio State University began the Search for Extraterrestrial Intelligence (SETI) project. As part of this project they developed The Big Ear radio telescope. The Big Ear telescope was used to conduct full sky survey’s of outer space in search of extraterrestrial radio sources. On August 15, 1977 The Big Ear telescope recorded a strange narrow band radio burst. The event was documented by Dr. Jerry R. Ehman, who scribbled “WoW!” in the margin of the recorded printout.
The signal came from the direction of the Sagittarius constellation. It was indicative of technological advancement as it stood out distinctly from the background noise of signals from space. The signal bore expected hallmarks of potential non-terrestrial and non-solar system origin. It lasted for a total of 72 seconds and has not been detected since. Seventy-two seconds is the exact length of time it takes for the Earth to rotate the Big Ear satellite through a signal from space. The event registered enormous strength, and the shape of the signal had a strange rise and fall calculation. Many people have speculated that the Wow signal was sent by an advanced civilization. Curiously, it was picked up by only one of the scope’s two detectors. When the second detector covered the same patch of sky three minutes later, it heard nothing.
This indicates that the first beam had detected something that wasn’t there, or that the source of the signal had been shut off or redirected in the intervening time. The event remains the strongest and most clear signal ever received from an unknown source in space, as well as the most fascinating and unexplainable. Its original discoverer Jerry Ehman doesn’t care to speculate on its source, and he remains scientifically skeptical about the incident. People have made claims that an extraterrestrial race was attempting to contact Earth. The official scientific explanation of the event is interstellar scintillation of a weaker continuous signal. The Wow Signal remains a mystery of space.