Rock Tasting at Biosphere 2

B2 6323
The dome of Biosphere 2 near Oracle, Ariz. Photograph by Susan E. Swanberg © 2013.

With a mischievous grin and gleaming dark eyes, Dr. Dragos Zaharescu raises a small spatula to his lips and tastes. At his feet are four containers, each filled with a different type of ground rock—granite, basalt, rhyolite or schist. Zaharescu will blend this rock with bacteria or fungus, creating a sandy medium for seedlings he grows here under the glass dome of Biosphere 2.

Originally published as a guest blog on the Scientific American Blog Network

For more go to: http://tinyurl.com/b9s73v4

© 2013

Exit mobile version