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Pre- and Post-entry, Descent and Landing Assessment of the Martian Atmosphere for the Mars 2020 Rover

Kleinböhl, Armin; Mischna, Michael A.; Lewis, Stephen R. +10 more

This review provides an analysis of activities undertaken by the Mars 2020 Council of Atmospheres (CoA) in support of the entry, descent, and landing (EDL) of the Mars 2020 rover Perseverance in Jezero crater, Mars. The activities of the CoA were designed to evaluate the safety of early-stage landing site candidates and, later, to constrain the ra…

Planet Four: Derived South Polar Martian Winds Interpreted Using Mesoscale Modeling

Schwamb, Megan E.; Michaels, Timothy I.; Lintott, Chris J. +3 more

For the first time, model-derived and imagery-derived wind directions and speeds have been compared in Mars's south polar region. Seasonal fan-shaped deposits are routinely observed by HiRISE in the polar regions. They are widely accepted to result from CO₂ gas jet eruptions. Fan lengths, sizes, and shapes can provide information about …