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Hubble Uncovers the Farthest Active Inbound Comet Yet Seen

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      NASA’s Hubble Space Telescope observed the farthest-discovered active inbound comet, Comet K2. K2 came from the distant Oort Cloud and is visiting our inner solar system for the first (and only) time. Since we’re seeing it so far away, past the orbit of Saturn, K2 is still in its early phase of activity, likely making it the most primitive comet anyone has ever seen.
      • Release Date
        September 28, 2017
      • Science Release
        NASA’s Hubble Observes the Farthest Active Inbound Comet Yet Seen
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      • Credit
        NASA, STScI, and Goddard Space Flight Center/K. Jackson; Music: “Space Cake” by Donn Wilerson [BMI] and Lance Sumner [BMI]; Killer Tracks BMI; Killer Tracks Production Music.

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      Last Updated
      Mar 28, 2025
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      Claire Andreoli
      NASA’s Goddard Space Flight Center
      Greenbelt, Maryland
      claire.andreoli@nasa.gov

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