num_pages: 32
description: Describes the characteristics of the small planet closest to the sun whose day is twice as long as its year.
language: English
title: Mercury, the quick planet
titlecomplete: Mercury, the quick planet (Isaac Asimov's library of the universe)
genres: Nonfiction, Science
ratings_count: 12
series: Isaac Asimov's Library of the Universe, Isaac Asimov's New Library of the Universe
publisher: G. Stevens