neil degrasse tyson return. >> thanks for having me back.derful podcast about your book -- >> yes, we did. kennedy: -- and you illuminated some of of the more interesting aspects of your life, your culture and your view from a global, galactic perspective. >> cosmic perspective. kennedy: absolutely right. now we may be able to harness the power of at least our star. so what does this fusion discovery mean for. >> people when they think of nuclear energy, they think of nuclear fission which was the energy source in the two bombs used in the second world war. very quickly after that we magnified the energy of those bombs by creating a whole other kind of bomb which came to be known as hydrogen bombs. hydrogen bombs don't have the radioactive baggage that fission bombs do. hydrogeneral bombs are -- fission, you take a big atom, break it, and you weigh those two atoms, and they weigh less than what you started with. where did the mass go? e equals mc squared, the mass went to energy. you can do the same thing coming from the other direction. you

neil degrasse tyson, thank you so much.ckyard is really big. >> yes. thank you. >> good to see you. until next type. >>> extreme snowfall is on the radar for california as millions nationwide brace for a winter storm. the latest forecast next. i got into debt in college and, no matter how much i paid, it followed me everywhere. bebetween the high interest, the fees... i felt trapped. debt, debt, debt. so i broke up with m my credit card debt and consolidated it into a low-rate personal loan from sofi. i finally feel like a grown-up. break up with bad credit card debt. get a personal loan with no fees, low fixed rates, and borrow up to $100k. go to sofi.com to view your rate. sofi. get your money right. ♪ science proves quality sleep is vital to your mental, emotional, and physical health. and we know 80% of couples sleep too hot or too cold. introducing the new sleep number climate360 smart bed. the only smart bed in the world that actively cools, warms, and effortlessly responds to both of you. our smart sleepers get 28 mi

let's get perspective to neil diego -- degrasse tyson. trying to understand the contrast. armstrong said a small step for man, a giant step normankind. >> walking on the moon would have been really great if we had continued to go back to the moon after that, if we were just living there now it would have been the beginning of something that continued so we don't want this to be just a fast science experiment that doesn't then have ramifications on our civilization and especially on our economy and our environment. so the big step that remains to be taken is once this bit of physics has been demonstrated which was, of course, announced today by the u.s. energy sector and her team, that this would one day become something real. that is, something portable, something that is the foundation of power plants or ideally maybe it's not entirely science fiction we remember from the film "back to the future" at the very end doc brown returns with his modern flying car and it's powered by nuclear fusion, home fusion device on his hood of his car and he pours in beer and some banana p

the other week, i was talking to neil degrasse tyson, who was so much smarter than me on this issue, but we would love to talk to him about space. he was talking about how images like this put into our perspective our place in the universe. i wonder how i've been going through your mind. are you thinking, senator, nelson, that the possibilities are endless now. in part, because of the success of this mission. >> indeed, they are. we have to take it a step at a time, because space is hard. and it's an unforgiving atmosphere out there. and you've got to do it right, when humonans are concerned. and yet the human, to have the discretion to determine what you want to pick up on mars is a very important fact. and that's why we're going with humans to mars and then venture further out. >> great stuff. and former nasa restaurant, michael masamino joins me now. you're also a professor. how would you grade this first phase of the artemis program? i would have to say maybe the homework got in a little delayed in that they couldn't launch right away, but a-plus. something like that? what do you