DENNIS L. MAMMANA

Astronomy Writing    Lecturing    Photography


 

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― COSMIC NEIGHBORS ―


Our universe is immense, but most of the changes in our sky involve our nearest cosmic neighbors. Whether it's the moon's changing phases, the drifting of the planets among the stars, or a comet that unexpectedly lights up the night, our cosmic neighbors are among the most photogenic in the heavens.

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(c) Dennis L. Mammana.  All rights reserved.