Comet ISON (IMAGE)

NASA/Goddard Space Flight Center

Comet ISON

Caption

Comet ISON entered the view of NASA's Solar Terrestrial Relations Observatory on Nov. 21, 2013, where it can be seen with Earth, Mercury and comet 2P/Encke. Four NASA solar observatories will watch ISON on Thanksgiving week until it slingshots around the sun on Nov. 28, 2013.

Credit

Karl Battams/NASA/STEREO/CIOC

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