celestial celebration from the white house balcony this afternoon as well. next guest was front and center from the path of totality. joining me now is dr. jim green nsa's planetary science division and one scientific thing we have not worked out is a little bit of audio delay. we have a bit of a gap. dr. jim green, i will let you tell us what you thought was significant about what we witnessed today. >> well, martha, it was absolutely spectacular. the weather report here was completely cloudless with two minutes of darkness. and as the moon moved in front of the sun, the corona peeked out. it was unbelievable. we saw ray structures and we could just imagine as scientists how these rays of material flow out away from the sun and into the solar wind. now, i'm a planetary scientist. and another thing i noticed is a few planets happened to peek out from behind that