Hundreds of meters underground. Large enough to house tens to hundreds of thousands of people. And walls strong enough to ...

Add Yahoo as a preferred source to see more of our stories on Google. The Earth formed in a ring of debris around the Sun, like the one around Vega, a bright star, in this artist's conception.

Join us for a summer workshop on earth building! We will construct a rammed earth pavilion and explore ways to use natural materials in architecture. Special attention will be given to hemp as a ...