Students can compare these closeups of Mercury with the photo on page 319. ... Mercury rotates on its axis very slowly, taking 59 earth days to complete its own day. ... In 1974 and 1975, Mariner 10 did three flyby observations of Mercury.
Title | : | Teacher's guide for earth science |
Author | : | Samuel N. Namowitz, Donald D Stone |
Publisher | : | - 1978 |
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