chris hadfield, commander of the international space station. and as we bring in our guests, again, i'm no meteorologist, but it -- we're hoping it remains clear. peggy, to you, 15 seconds, and then you, chris, and we have to open up the countdown. >> we're definitely excited about this. my fingers are crossed the weather will stay just far enough away to get this vehicle off the ground. i think everyone is holding their breath right now. >> commander hatfield? >> it's great that tens of thousands of people have gathered to watch something that shows what america can do so well, a real beacon of hope right now. we just need a little hole in the weather. my fingers are crossed for the weather also. the crew's ready and the rocket's railroad. >> all right. we will lay back and listen to mission control. >> under a minute now. the fts, flight termination system, has been armed. >> dragon spacex, go for launch. >> spacex dragon, we're go for launch. >> the team has 30 seconds. >> stage 1 staging for flight. >> the team has 15 seconds. ten, nine, eigh