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**avaiftBoara** · 07-19-2009, 05:31 AM

one of those mega asteroids thats like a mini moon has almost 10x the amount of iron resources than Earth as a whole has. I wonder how scientists know how much iron is inside an asteroid without ever having been there to run tests.

07-19-2009, 05:31 AM	#5
avaiftBoara Join Date Oct 2005 Posts 414 Senior Member	one of those mega asteroids thats like a mini moon has almost 10x the amount of iron resources than Earth as a whole has. I wonder how scientists know how much iron is inside an asteroid without ever having been there to run tests.
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