Ian Clark walks past mission countdown clocks in the Perseverance offices at JPL. Clark was needed on-Lab to supervise the assembly and cleaning of the sample tubes that will hold Martian sediment and rock.

Ian Clark walks past mission countdown clocks in the Perseverance offices at NASA's Jet Propulsion Laboratory in Southern California. The Lab instituted a suite of safe@work procedures — based on the guidance of occupational safety medical personnel — to ensure those working at JPL are social distancing, wearing protective equipment and have ready access to hand sanitizer and other cleaning supplies during the coronavirus pandemic. Clark is one of a small subset of project personnel whose mission-essential job required physical access to the facility. He was on-Lab to supervise the assembly and cleaning of the sample tubes that will hold Martian sediment and rock for return to Earth on a future mission.

For more information about the mission, go to https://mars.nasa.gov/mars2020/.

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