CNN's Chad Myers discusses the ancient stream bed found on Mars via images from the Curiosity rover. After 50 days on the red planet, the roving lab found round rocks that can only be shaped by water.

Time magazine's Bobby Ghosh says the Salafis are taking advantage of new freedoms in the Arab Spring countries. Many Libyans are pointing to the Salafis as being responsible for the U.S. Consulate attack in Benghazi.