Eric the Pliosaur, one of the most interesting fossils on the planet

Finding complete fossils of dinosaurs and amphibians is a difficult task, with museums and universities spending millions of dollars to reconstruct and acquire these ancient specimens. » 3/07/13 8:40am 3/07/13 8:40am

Opal Mining: A Damn Good Way to Get Yourself Killed

Opal-mining is one of the world's most harrowing pursuits, but potentially one of the most rewarding as well. To find opals, a modern treasure hunter must dig random holes in areas of known deposits, and then lowering him- or herself down a 20 meter shaft. Besides the obvious problem of claustrophobia, and the danger… » 1/25/13 8:18am 1/25/13 8:18am

We can encrypt secret messages in opal

A special kind of lab-created opal can be used to carry several encrypted messages at the same time. Find out how it can keep secrets for someone — and tattle on that same person — depending on what you spray it with. » 12/06/11 7:00am 12/06/11 7:00am