Subscribe | UPI Odd Newsletter Subscribe STOCKTON, Calif., May 15 (UPI) -- Northern Californian residents were abuzz on social media after they saw a cloud formation they were convinced was the precursor to an alien visitation. The pictures circulating Twitter are of a sky covered in a sheet of clouds excepting one hole emitting what appears to be a strange blue glow. Advertisement "So the @WhiteHouse wants you to believe what happened over the skies of Stockton yesterday was a 'cloud formation' ? GTFOH #iKnowWhatiSaw," tweeted @CaPtDCharles "Is that the wormhole from Donnie Darko?" wondered @NGC. Unfortunately, for those eager to meet some interplanetary visitors, the phenomenon was a natural one. It was likely a "hole-punch cloud" that is usually caused by a plane passing through the cloud bank. The blue glow was most likely from cloud iridescence, a phenomenon caused by thin clouds with similarly sized water droplets diffracting light. Read More Pope Francis says he would baptize aliens Bill Clinton 'wouldn't be surprised' if aliens visited Woman pulls gun from genitals during sex act after aliens argument upsets her
