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:Out of control Chinese space station could hit EARTH in NINE DAYSWhy Can’t Dying Patients Get the Drugs They Want?Yellowstone volcano alert: 200 mile wide supervolcanic heat underground HOTSPOT discoveredGary Lincoff, 75, Dies; Spread the Joy of Mushrooms Far and WideSolar storm warning: THIS is how scientists are battling to save planet EarthChinese space station falling: When will Tiangong-1 spacecraft fall to Earth?