North America nebula in Cygnus
author: Sebastian Voltmer/Novapix
reference: a-neb70-00010
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Artist's impression of exoplanet HD 189733b
author: ESA/C.Carreau/Novapix
reference: a-exo99-00620
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The reversal of the motion of Mars in Taurus. September 23, 1990
author: A.Fujii/David Malin Images/Novapix
reference: a-cnj03-01001
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