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Why Comets Are So Often Disappointing, But A Few Aren’tA comet with a lot of dry ice will become active earlier than one that is almost entirely water ice. Sometimes a comet rich in ices with very low freezing points will get quite bright while still ...
Why it's so special: Nicknamed the "Great Comet of 2025," Comet C/2024 G3 (ATLAS ... with image of ancient galaxy roaring back to life —Dry ice 'geysers' erupt on Mars as spring hits the ...
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