Scientists have for the first time discovered phosphorous as one of the essential elements for life in the cosmic leftovers from a supernova explosion.
Two billion years ago, the Earth system was recovering from perhaps the single-most profound modification of its surface environments: the oxygenation of the atmosphere and oceans.
Sticking to a vegetarian diet can help kidney disease patients avoid accumulating toxic levels of phosphorous in their bodies.
Day in Pics: 18th April
Showbiz World - April 18, 2015
PM Modi in Canada