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 to enter the period that officials are calling seven minutes of terror, where they will not know if curiosity is alive or dead. that s exactly right, john. this is it. they ve all been using the olympic term that they have to stick this landing. as you pointed out, that this maneuver to entering the atmosphere of mars, traveling at 13,200 miles an hour, in less than ten minutes from now, they ll