Imagine building a 6,000-km tunnel to the Earth’s core to harvest nickel, iron, gold, and other metals. You would have to dig your way through iron, mantle, and rock at very high temperatures and pressure. The world’s deepest mine is less than 4 km deep. It may be a better idea to track asteroids for the gold and other metals they have. In fact, there are companies that have announced their intentions to develop spacecraft and mine asteroids. Titanium, nickel, iron, and other minerals can be mined, and near-earth asteroids are suitable for this. LEO telescopes will be used to survey asteroids. You don’t need 6,000-km deep mines – the 21st century Gold Rush has begun!
Infographic courtesy of SBC Gold
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