cory: joining us to discuss the accident, lori garver, former deputy administrator for nasa.hen you look at this accident we know that space travel is difficult, but we have seen now three consecutive different explosions. pino in three different companies. should we connect the dots? lori: the connection is that it is rocket science and heat and pressure and different things can go wrong very quickly. this vehicle itself having 18 successful flight in a row people were hopeful they had found the secret sauce. cory: we are also joined by chris hatfield, a canadian astronomical. he joins us by phone. thank you, lori. chris, you have been up there waiting for supplies to come. when you hear the third consecutive ship to explode trying to get there, how do you think they feel up there? chris: they probably feel better than you think. they have been up there before all three of them. they know the reality of it, which is they have a pantry of food and enough water for many months. they feel really bad for the people at spacex, because so much work and to have the vehicle so spect