be able to understand its orbit quite well be able to take advantages of looking at it the next time it may come around, although, it will be several decades before it will come anywhere near the earth-moon system and i believe it will at that particular time be further than the moon will be. >> megyn: wow, so this really was a historic moment that we all witnessed together. it doesn't seem like the at least as far as our experience goes anything happened we believe we're still on the air although our viewers will the let us know through twitter or other means. did you expect any disruption to planet earth as a result of this. >> no, not at all. the excitement really is in the planetary science community. because of this wonderful opportunity. we already had the initial orbit well, well calculated. we've been observing this particular object for about a year. and indeed, that becomes nowhere near any of our satellites and as i mentioned earlier, it's already passed by, well over 17,000 miles in