Download the rover sample dig video in MPEG format.
Sample frame from video
This video was shot during the December 1996 field test of Rocky 7. The rover is positioned along ejecta from Spa Crater. To collect a sample, Rocky 7 first opens the scoop and lowers its arm until it contacts the ground. This gives the rover a more accurate assessment of how deep to dig than from its navigation images. Rocky 7 then proceeds to attempt a dig. This is a difficult process because the rover is so light (approximately 15 kg) that it will actually lift itself up when the ground is too hard.
