NASA news conference: When is NASA's major Mars Curiosity Rover announcement? NASA is expected to unveil a monumental Mars Curiosity Rover discovery this afternoon and the world’s scientific community is on edge. But what time will the US space agency’s press announcement be held today? Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:ALIEN BREAKTHROUGH: Nasa discovers ‘exciting’ planets that likely support LIFEALIEN BOOST: Life in Atacama Desert proves life on Mars IS possibleMars is forming PLANETARY RINGS just like Saturn as its moons are CRUMBLING7 Earth-Size Planets Identified in Orbit Around a Dwarf Star7 New Planets Could Host Alien LifeTrilobites: Lake Berryessa’s Spiraling Floodwater Mesmerizes the Locals