This image sent by NASA’s Perseverance Rover from Mars sparked speculation about the rainbow in the sky of the “red planet”, but The origin comes from the camera itself.
“Many people want to know: Is there a rainbow on Mars? No. There can’t be a rainbow here. The rainbow is produced by the light reflected around the water droplets, but here There is not enough water to condense and it is too cold for liquid water In the atmosphere” explained the mission of the Persevering Roamer on his Twitter account.
Actually, this is a lens flare. How did it happen? The Hazcams front camera of the rover is equipped with an umbrella, which is considered vital because it is used to safely drive forward. This is the usual sense of movement of the rover.
However, sun visors are not essential on the back-up Hazcam (although the vehicle can be reversed), so they can be seen Light artifacts, Like it appears in the form of a rainbow, scattered in your image.