HomeAnomalies Strange skies. What blocked the rainbow? byPlanet Today -5/18/2018 08:08:00 AM 0 On May 17, 2018, an eyewitness shot a dark, straight line blocking the rainbow. It’s like a dark straight line blocking a rainbow, but whether it can be a cloudy shadow or something between a cloud and a rainbow, blocks the rainbow. Tags Anomalies Facebook Twitter