Emerald treasure from 400-year-old shipwreck up for auction
March 17, 2017, 9:14 a.m. by Michael d'Estries
Rare gems from the sunken Spanish galleon Nuestra Señora de Atocha are expected to fetch millions.
Mariana Trench contains 'extraordinary' levels of toxic pollution
February 15, 2017, 11:38 a.m. by Michael d'Estries
New study erases assumptions that the ocean's deepest points are pristine ecosystems.
Lost continent discovered under the African island of Mauritius
January 31, 2017, 4:22 p.m. by Bryan Nelson
The only known home of the now-extinct dodo bird has been concealing an ancient continent.