More detail available at:
http://news.nationalgeographic.com/news/2013/10/131011-first...
http://www.newscientist.com/article/dn24381-black-glass-coul...
More detail available at:
http://news.nationalgeographic.com/news/2013/10/131011-first...
http://www.newscientist.com/article/dn24381-black-glass-coul...