What processes in the depths of the Earth forge beautiful and precious stones?Premiere Date: November 2, 2016 | Runtime: 00:53:40
There are no videos in the selected category for the current program. Please try again later.
NOVA brings you stories from the frontlines of science and engineering, answering the big questions of today and tomorrow, from how our ancestors lived, to whether parallel universes exist, to how technology will transform our lives. Visit the official website to watch full-length documentaries, or explore our world through short-form video, on our digital publication NOVA Next.