4+ day, 1+ hour ago   (560+ words) The long-lost supercontinent Gondwana has finally been pieced together after 550 million years. For years, scientists have known that the ancient landmass included present-day South America, Africa, Arabia, Madagascar, India, Australia, and Antarctica. However, a new study suggests that Gondwana was…...

1+ week, 5+ day ago   (1134+ words) Although our planet's deep layers are totally inaccessible, scientists can use the seismic waves from powerful earthquakes to probe the hidden depths. Now, Chinese scientists have uncovered structures sitting on the boundary between the viscous mantle and the liquid outer…...