Aug 8, 2019
NASA robotic rover arm for Mars 2020 has no muscles..., but has strength
The robotic arm with five electric motors and five joints was able to carry a weight of 40kg, even without deltoids, triceps or biceps.
After gaining legs and wheels at the end
of June, the rover already has a 2.1-meter-long robotic arm. The video released
by NASA shows the arm easily moving an 88-pound tower, approximately 40
kilograms, as it moves from an implemented configuration to a stored
The images were taken on July 19 at the Jet Propulsion Laboratory in Pasadena, California.
"This was our first opportunity to see the arm and tower move together, making sure everything worked as advertised, with nothing blocking or hindering the proper functioning of the system," said Dave Levine, a Mars 2020 engineer.
On Mars, the arm and tower will work together, allowing the rover to function like a human geologist: achieving geological characteristics, wearing out, analyzing and even collecting samples of rock and soil that will be returned to Earth for a future mission.
NASA's Mars 2020 rover will be launched in July next year from Cape Canaveral Air Force Station in Florida. It is expected to land on Mars in February 2021, with the Jezero Crater being chosen as the site.