CNNW CNN Newsroom August 6, 2012
is zero room for error. about 17 minutes from now, if all goes as planned, the rover will touchdown on the martian surface. but it takes 14 minutes for a signal to travel from mars to earth, so best case scenario, confirmation will come in about 31 minutes. we expect pictures around 2 a.m. eastern. now, joining us from the laboratory in california. in moscow r where russian space officials are closely following the development and science correspondent david brodie joins us from edge water, new jersey. but first we will go to john zarrella there live in pasadena. john, we are about t...