Since January, NASA's Perseverance rover has been tracing the south side of Neretva Vallis, which is possibly the fossil of a river that once fed the rover's landing site in Jezero Crater.
In the distance, Perseverance's operators could see the glimmer of its next destination: Bright Angel, so named for the light-toned outcrops that may be ancient rocks uncovered by the previously running river.
