According to SETI, the origin of the signal is unknown. This was a strong signal and has certain features which are normally indicative of UFO activity. Part of the signal was detected from a GPS satellite.
Although the picture by itself may seem unexciting, it contains a wealth of information. Time labels the vertical axis of the plot; frequency marks the horizontal axis. Astronomers and SETI volunteers are analyzing the data to determine the source.
Radio telescopes are constantly picking up unidentified signals. There has not yet been a signal strong enough to determine its exact source. What makes this signal of particular interest is its frequency, 1420. The WOW signal detected in 1977 was also 1420 MHz. SETI astronomers tell us that hydrogen, the most common element in the universe, resonates at 1420 MHz. Researchers have felt that due to the availability of hydrogen in the cosmos, any extraterrestrial activity will likely transmit on this frequency; giving this signal a stronger likelihood of emanating from a UFO.
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