Tags Dr. Kirsten Siebach Rice University Mars water and sediments on Mars Mars sedimentary rocks Mars rovers Opportunity Curiosity MSL terrestrial geology DSN Earth to Mars communications Opportunity wakeup songs sweep & beep Mars Dust Devil Season human contamination of Mars forward contamination on Mars planetary protection Martian water Mars settlement issues Martian atmosphere methane on Mars Life on Mars past life on Mars Mars 2020 abiotic factors & components Martian fossils Boxwork Fractures Martian moons rocky planets in our solar system subduction expanding Mars and planetary geology knowledge base student planetary geology & Mars career paths plate tectonics Guest Dr. Kirsten Siebach Tagline The latest for Mars research and more View the discussion thread.