[anymouse]

Asteroids are chock full of Platinum, Palladium and other rare metals ore. Moon has lots of Titanium and Aluminum ore too.

I hear a distant moon called Pandora has a lot of Unobtainium too. ;)

[rarestia]

The simple fact is that astrogeology is the only science that will provide us with materials for future human growth. They're called rare-Earth metals for a reason. Those rare-Earth metals might be found in abundance on the moon, Mars, asteroids, or any other terrestrial planet(oid) in our solar system and we should be working around the clock to get off this rock to look for more raw materials to continue our species!