A device like this deployed on the lunar surface by the Apollo 11 crew in 1969 measured lunar shock waves caused by moonquakes or impacts of meteoroids or of manmade objects on the surface.
Image Number: WEB13226-2013
Credit: National Air and Space Museum, Smithsonian Institution
For print or commercial use, please contact: Smithsonian Institution
Reproductions are not currently available. If you would like to use this image as-is, please submit a permission request.