Researchers at the University of California at Los Angeles have developed a portable microscope with the ability to detect E.coli and other bacteria. The microscope uses lasers instead of lenses to identity particles.
President Obama rejected a proposal from the Environmental Protection Agency containing stricter air-quality rules and ozone pollution standards, angering environmentalists but supporting industries and local governments.
New studies have shown that the Tasmanian Tiger's jaw was too small to devour sheep.
Researchers have discovered a gene which can cause lymphedema and leukemia when mutated.
-compiled by Surabhi Bhatt, Adnin Zaman and Faiza Arif