New Ehlmann Research Group, Caltech paper by Dr. Andrew Annex showing how lavas on Jezero crater's floor followed topography set by sediments formed under earlier episodes of Lake Jezero - important for interpreting rover data. agupubs.onlinelibrary.wiley.com/doi/10.1029/20…

This week, we have a plot demonstrating the spectral diversity of the rocks that the Perseverance rover has encountered in Jezero Crater. These spectra show variable iron mineralogy which indicates strong oxidative water-rock interactions in the Jezero delta deposits. (1/2)

New paper from Caltech Ehlmann Research Group, Caltech grad student Yu Yu Phua et al shows the hydration state of sulfates in Mars rocks seen by ARCHIVED - NASA's Perseverance Mars Rover. More dehydrated than ARCHIVED - Curiosity Rover rocks (weird), and phases found indicate salty fluids for at least some of the waters in Jezero crater

Former Caltech Ehlmann Research Group, Caltech postdoc Lucia Mandon traces more oxidized minerals in part of the Jezero crater delta relative to the floor or later rocks seen by ARCHIVED - NASA's Perseverance Mars Rover in the upper delta

Congrats to Caltech Ehlmann Research Group, Caltech alum Dr. Ellen Leask on her important findings for Mars history: sulfates connected with basin volcanoes, large ash deposits, late history saline waters -- Terra Sirenum holds an amazing record of Mars climate! Check out the paper 👇

Launch window for Lunar Trailblazer opens today! 🚀🌚 Immensely proud of our team and looking forward to getting underway to map water on the Moon. Launching along with IM-2/SpaceX, separating ~48min after launch. NASA coverage starts 6:30pm ET #PI_daily