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| Description: Comets Often compared to large, “dirty snowballs” Composition Frozen gases Rocky and metallic materials Frozen gases vaporize when near the Sun Produces a glowing head called the coma Some may develop a tail that points away from Sun due to Radiation pressure and the solar wind Picture Stats: Views: 487 Filesize: 1.18MB Height: 854 Width: 1400 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=39882 |