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Watch the arm of NASA's Mars 2020 rover perform a bicep curl



The Red Planet's Jezero Crater in February 2021.

A crucial

In preparation, engineers placed 88 pounds worth of sensor loading turret onto the rover's 7-foot-long Arm on July 19 at the Jet Propulsion Laboratory's Spacecraft Assembly Facility in Pasadena, California.

The rover's arm includes five electrical motors and five joints, and its turret will include cameras, a life-detection instrument known as SHERLOC , a chemical element detector and a percussive drill and coring mechanism, according to the Jet Propulsion Laboratory.
"This is our first opportunity to watch the arm and turret move in concert with each other. "Nothing blocking or otherwise hindering smooth operation of the system," Dave Levine, Integration Engineer for Mars 2020, said in a statement.
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"Standing there, watching the arm and turret through their motions, you can not help but marvel that the rover will be in Mars in less than two. "

CNN's Ashley Strickland contributed to this report.


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