Season 29 Episodes13
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The moon is a world of mountains, craters, valleys, peaks and huge waterless seas. Of special interest are the cracklike features known as rills, which are unlike anything we find on earth. Patrick Moore talks about them to Dr Lionel Wilson of the University of
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"Moon Rills" is episode 5 of The Sky at Night season 29. It aired on May 5, 1985.