A is for Asteroid Mining #AtoZChallenge

Folks, we live in very exciting times! Private industry and governments will certainly expand our economy into space where a treasure trove of raw materials wait to be mined. 
Why? Because we are going to set up colonies on the moon, Mars, the asteroid belt and even minor planets like Ceres and possibly certain moons of Jupiter and Saturn. And we’ll need construction material to build the colonies. 
Asteroids consist of oxygen and silicon which are the two most abundant elements in th...