[jpsb]

I wonder how much iron is in a 1 km iron asteroid? Could there be an asteroid made of gold? How much does H3 cost and how much H3 is on the surface of the moon?

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"Could there be an asteroid made of gold?"

"Metalliferous asteroids as potential sources of precious metals"

"Successful recovery of 400,000 tons or more of precious metals contained in the smallest and least rich of these metallic NEAs could yield products worth $5.1 trillion (US) at recent market prices."