The Nucleus of Comet Halley, as Seen on Close-Up Photographs

question 115

Multiple Choice

The nucleus of Comet Halley, as seen on close-up photographs taken by the Giotto spacecraft, is

• A) roughly spherical, moderately cratered, and covered with dark dust.
• B) roughly spherical, light-colored, icy, and covered with many cracks and grooves.
• C) potato-shaped and darker than coal.
• D) oblong, with a bright ice surface.

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