NASA’s Perseverance Mars rover acquired this image of the area in back of it using its Rear Left Hazard Avoidance Camera on April 4, 2021. The “rainbow” is just a lens flare, agency officials said. (Image credit: NASA/JPL-Caltech)

This Mars “rainbow” would lead only to fool’s gold. 

NASA’s Perseverance rover snapped a photo on Sunday (April 4) that appeared to show a rainbow arcing across the dusty Martian sky. The striking image spread quickly across social media, as did the “rainbow” explanation, prompting NASA to step in with the real story.