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Water action on Mars rock seen by Opportunity

author: Steven Hobbs/Nasa/Novapix

reference: a-mar08-50021

Lunar base - Illustration

author: P.Carril/Novapix

reference: e-exl01-00028

Salt egg in Dallol - Ethiopia

author: Martin Rietze/Novapix

reference: t-vcn02-11003

Estemmenosuchus uralensis grazing

author: Walter B. Myers/Novapix

reference: t-din00-30101
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2020-09-03 Comet Neowise - The Great Comet of 2020
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Alan Friedman
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