Scientists in Germany created three new elements, named Darmstadtium, Roentgenium and Copernicium.
Between 2009 and 2010 global warming emissions jumped 6 percent. This increase is the biggest jump in total emissions ever seen.
Dr. Eugene Carragee, professor at Stanford University's medical school, has presented data showing that spinal infusion patients treated with Amplify, a Medtronic bone growth drug, were at a greater risk for cancer.
A study led by physicians at Weill Cornell Medical College and Mt. Sinai Medical Center found that about $6.8 billion was spent on unnecessary medical tests and practices in 2009.
-compiled by Faiza Arif, Adnin Zaman and Surabhi Bhatt