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Astronomy Picture of the Day (APOD) for November 1, 2014, shows Mars the day after Comet Siding Spring’s close encounter, with the comet visible at the edge of its overexposed disk.

Credit & copyright: Rolando Ligustri (CARA Project, CAST)

The caption describes: “this comet [came] within 86,700 miles or so of Mars, about one-third the Earth-Moon distance. Earth’s spacecraft and rovers in Mars orbit and on the surface reported no ill effects though, and had a ringside seat as a visitor from the outer Solar System passed by.”

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