One of the pulsed signals was detected in the light of the star HD 89389, located in the constellation Ursa Major (image). (Photo credit: Christoph Lechenaff via Getty Images)
A study aimed at searching for extraterrestrial life has found that an unusual pulsed signal has been detected in the light of nearby stars, leaving scientists baffled.
The pulses showed stars growing brighter and dimmer for fractions of a second, suggesting that something had crossed and partially blocked the light of the stars. This does not mean that aliens were flying past in spaceships, but unidentified alien activity is one of several hypotheses proposed by the researcher who detected the signal.
Richard Stanton, a retired scientist who formerly worked at NASA's Jet Propulsion Laboratory, has spent years studying more than 1,300 sun-like stars with a 30-inch telescope, looking for signs of extraterrestrial life. He does this by analyzing changes in the light coming from individual stars.
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