Rare earth elements are necessary for modern technology, including green energy, but they only come from a few sources around the globe. New research has discovered them hiding in coal mines in the U.S.
Genetic Study Investigates Relationships Between Iron Age Elites archaeology.org - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from archaeology.org Daily Mail and Mail on Sunday newspapers.
From dangerous lion reserves to high mountain peaks, photographers go all out to capture the most spectacular images of our galaxy in this year s Milky Way Photographer of the Year competition.