we'll bring in dr derek pitts, great to see you. i love the way tee said that in the most matter of fact way, as if it was nothing. sounded like science fiction on capitol hill. could you shane the asteroid story to me. we land on one and knock it into the moon's orbit. why? >> the way to say it is that we would capture an asteroid of a reasonable size, meaning it's manageable enough, we could move it from an after i had belt position, towards the solar system or closer than that and move it into the moon and set it into an orbit to use it for practice for doing deeper solar system missions. it's nowhere next-door as easy as described, but the idea is to get people excited about something in the future that would be a challenge, adventurous and may give us practice for what to do if we make the deep space explorations. >> because the after out belt is further away from the moon. it's a longer flight to take, preparing them for a possible mission to mars. >> the real idea is if we are going to mount a trip to morse, and we have to th