The science team behind Perseverance wanted to know whether that glow from the Mars aurora could be seen in the visible spectrum.

NASA’s Perseverance rover has detected the first aurora at Mars that's visible to the human eye, good news for future astronauts who can savor the view on the red planet. European and U.S. scientists reported that the green aurora in the dusty Martian sky was generated by a solar storm last year and had three days' advance notice to set aside viewing time with the rover’s cameras.