Working Mars Helicopter
Jet Propulsion Laboratory https://www.jpl.nasa.gov/ March 28, 2019
NASA Mars Helicopter team members work the flight model (the vehicle going to Mars) in the Space Simulator, a 25-foot-wide (7.62-meter-wide) vacuum chamber, at NASA's Jet Propulsion Laboratory in Pasadena, California. The image was taken on Feb. 1, 2019.
For more information about the mission, go to https://mars.nasa.gov/technology/helicopter/.