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Another Interstellar Visitor - Comet C/2019 Q4
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13-12-2019, 06:34 PM
Sunfish
(Ray)
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Join Date: Mar 2018
Location: Wollongong
Posts: 1,909
Half a kilometre is still a large chunk of ice. I think the one that caused the 4.5 km Goss Bluff crater was about 1km.
Sunfish
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