Space and Astronomy Megathread (MERGED) - Part 1

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A SWAN, an ATLAS, and Mars
Image Credit & Copyright: Adam Block

 

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Comet C/2025 R2 (SWAN)
Image Credit & Copyright: Team Ciel Austral

 

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Saturn Opposite the Sun
Image Credit & Copyright: Jin Wang

 

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Pleiades: The Seven Sisters Star Cluster
Image Credit & Copyright: Francesco Pelizzo

 

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NGC 2170: Angel Nebula Abstract Art
Image Credit & Copyright: David Moulton

 

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Ares 3 Landing Site: The Martian Revisited
Image Credit: HiRISE, MRO, LPL (U. Arizona), NASA

 

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Nearby brown dwarf's 'weather' mapped in unprecedented detail

Researchers at McGill University and collaborating institutions have mapped the atmospheric features of a planetary-mass brown dwarf, a type of space object that is neither a star nor a planet, existing in a category in-between. This particular brown dwarf's mass, however, is just at the...

phys.org

 

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[Brutikus]

Supernova Remnant Cassiopeia A
Image Credit: NASA, ESA, CSA, STScI; D. Milisavljevic (Purdue University), T. Temim (Princeton University), I. De Looze (University of Gent)