Evidence of the delta’s arms was found running along the crater’s floor using orbital observations.
Tools such as the Compact Reconnaissance Imaging Spectrometer for Mars instrument, or CRISM, helped astronomers select Jezero as the landing spot for Mars 2020.
The study’s lead author Briony Horgan of Purdue University in West Lafayette believes Jezero’s “bathtub ring” is one of the most exciting regions to explore.
She said: “CRISM spotted carbonates here years ago, but we only recently noticed how concentrated they are right where a lakeshore would be.
“We’re going to encounter carbonate deposits in many locations throughout the mission, but the bathtub ring will be one of the most exciting places to visit.”
