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Thursday, 12 March 2020

Terrific craters on the Moon's terminator

Most people are aware that the Moon is not self-luminous: it shines by reflecting sunlight. As it travels around the Earth, the changing angles between the Moon, the Earth and the Sun are responsible for the familiar phases. When the terminator (the demarcation between the lit and unlit portions of the lunar surface) cuts across a rich crater field, as it did last night,  the craters can be really spectacular.

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