Beyond Earth, there are abundant resources on the Moon and, more significantly, on asteroids. The asteroid belt between Mars and Jupiter alone is estimated to contain between 700,000 and 1,700,000 asteroids with diameters of at least 0.6 miles. In addition, there are over 30,000 known near-Earth asteroids (NEAs), and about 2,000 to 3,000 more are discovered each year.
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