Humans erode soil 100 times faster than nature

A new study shows that removing native forest and starting intensive agriculture can accelerate erosion so dramatically that in a few decades as much soil is lost as would naturally occur over thousands of ...

Jan 07, 2015
3.9 / 5 (21) 9

A recoiling, supermassive black hole

When galaxies collide, the central supermassive black holes that reside at their cores will end up orbiting one another in a binary pair, at least according to current simulations. Einstein's general theory ...

23 hours ago
4.4 / 5 (18) 2