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568-Tough Space Rock
Published 6 years, 2 months ago
Description
At its closest point, a small space rock comes to only 1/3 of Mercury's average distance from the solar surface and receives 9 times the amount of solar energy which heats the planet Mercury to 800F. If it has the chemical composition of a stony meteorite it could contain a sizable amount of iron and in the future could be of interest to space colonists as a valuable source raw materials.