Photo Researchers ftp March 2011
EN_00958297_0952
Illustration showing the core, mantle and crust of Mercury. Geologists estimate that Mercury's core occupies about 42% of its volume; in comparison, for Earth this proportion is 17%. Recent research suggests that Mercury has a molten core with a mantle of silicates, 500-700 km thick, surrounding it. Mercury's crust is believed to be 100-300 km thick based on data gathered from earth based observation, and the mariner 10 mission.
2011-03-24
EAST NEWS
Science Source
Monica Schroeder / Science Sourc
BQ2287
0,27MB
25cm x 25cm przy 300dpi
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