Countdown to NASA Mission to Discover if Life Exists on Mars

NASA’s rover Curiosity will soon land on Mars to investigate whether the Red Planet ever had the right conditions to support life. Scientists at the Jet Propulsion Laboratory in Pasadena will grant Curiosity fans virtual access to Mission Control with streaming online video and news briefings. Conan Nolan reports from JPL in Pasadena for the NBC4 News at 5 p.m. on August 2, 2012.