A previous image showed recurring slope lineae (RSL) in multiple areas. The RSL are large and have high contrast. Most importantly, we see multiple examples of RSL flowing on bedrock, alternating between bedrock and regolith and regolith only. Do these candidate RSL fade? Do only the regolith RSL fade? Do they all lengthen?

ID: ESP_071821_1670
date: 21 November 2021
altitude: 262 km

https://uahirise.org/hipod/ESP_071821_1670
NASA/JPL-Caltech/UArizona
#Mars #science #NASA