Detailed text transcripts for TV channel - FOXNEWS - 20190629:17:49:00
>> no. when you think of mars, doesn't have thick atmosphere, so there's cosmic radiation impacting mars all of the time, light from the sun reflecting off of rocks so our best estimate it's either cosmic radiation or light glinting off of a rock but the reality is we don't know, i tell you, our scientists are not particularly interested in it, they see this thing once a week. >> it's everybody else on the internet and twitter and instagram that's making it much more. >> that's right. >> i prefer the first answer but i will take it as what it is, nasa administrator brian, thank you so much. >>...