Cassini, Voyager and beyond with Linda Spilker
Planetary Radio: Space Exploration, Astronomy and Science
00:00
Planetary Radio - Part Two
This week in space history, lunar orbiter took the first image of earth from hanging out around the moon. The moon has big, old canyons from massive faulting that are as much as 12 times deeper than the grand canyon. If you dropped a rock off the edge of the highest cliff, it would take about ten minutes to reach the foot of the cliff.
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