⚙️ We're testing ways to bring Mars samples back to Earth. Engineers are developing crucial hardware for the series of daring Mars Sample Return missions. Prototypes for important robotics are undergoing tests here at JPL, @NASA_Marshall and @NASA_Langley. https://t.co/ayoPWOO3tA pic.twitter.com/bUXjCKiffd

— NASA JPL (@NASAJPL) December 13, 2021