i'm phil torres and joined by dr shini somara, and dr crystal dilworth. crystal, you got your ph.d. , that caltech is a hot bed of scientific discoveries, happening every day. and today we are lucky enough to meet the scientists. >> absolutely, there's wonderful work. and we are caltech nerds. we have a reputation. we are featured a certain way on sit comes, "the big bang theory" tv show. >> exactly. i'll show you some of my favourite people doing incredible science. the m.e.r.s. is mcarthur -- first person is mcarthur prize winner, taking an approach to energy, global conservation. >> climate change is not a far-off problem in the future. it's happening now causing hardship now. climate change is real. we have to act now. >> the debate about whether climate change existed at all is falling to the background. i think people accept it's a reality. it's here. now it's a question of what do we do to combat it. >> on the front lines of combatting climate change is caltech aeronaughtic professor dr john deberiy. he's taking cues from animal. >> the name of the

. >> dr shini somara is a mechanical engineer. kyle hill is an engineer. and i, phil torres, am an ento meteorologist. tonight - los angeles builds for the future, but discovers a secret deep under a subway line. >> i was the first person to ever see that. >> reporter: ever see what? >> a rare fossil. see. >> that's our team, now, let's do some science. [ ♪ music ♪ ] >>> hello, welcome to "techknow". i'm phil torres. joining me today is kyle hill, dr shini somara, and dr crystal dilworth. we have great stuff coming up. we'll start with you crystal dilworth - you have a new look at cancer. >> all of us know one person affected by cancer. i had a chance to go into the operating room and look at a new technique allowing surgeons to actually see cancer. let's take a look. >> reporter: during the gulf war soldiers used night vision goggles that allowed them to see in complete darkness. now, at barnes jewish hospital at washington university school of medicine, besides a mask, surgical scrubs and gloves, this doctor will wear the same technology for her next sur

i'm phil torres, joined by cara santa maria, marita davison, and dr shini somara. ni has been taking us on a journey through greenland. we have seen the flights and the science. what was it like to be there with the scientists? >> well, i got to experience that first hand. we were staying in the statement location as where the n.a.s.a. crew live. it was pretty amazing, to say the last. really cold. let's take a look. >>> i came to greenland to join n.a.s.a.'s operation icebridge. their goal is to collect the critical data on how polar ice sheets are changing. here the an arctic they days are long at this time of year. you have to stay up until nearly midnight to catch the famous northern lights. to the n.a.s.a. scientists home kiss. >> just taken off my boots. they are so heavy, it's a relief to take them off. i'm keeping them outside my room, because it's a custom. i noticed that my room used to be a storage room, so welcome to my humble dwelling. i told you it was basis. these are flip flops, essential when you share a bathroom with men and women. this is a second

shini somara, a mechanical engineer. tonight, can doctors save lives by bringing them into suspended ant i medication? dr. dilworth, a molecular scientist and i am phil torres. i am an entomologist. >> that's our team. let's do some noedz /* [ music ] >> guys, welcome to "techknow." joining me are car a santa maria, shini somara and krista dilworth. i am excited for today's episode because it involves one of the best animals out there, man's best friend, the dog. and cara, you got to play with a bunch of dogs. we know dogs make us happy but they can also potentially make ? >> yeah. so there is evidence to show that dogs can actually detect cancer. and i got to visit the laboratory, some training facilities and even meet a woman whose dog detected her breast cancer. let's check it out. -year-old who grand chap pin rain dance or just plain troy as his family calls him is a pure-bread show dog but to his distinction. >> definitely credit him with saving my life. there is no question about it >> diane's family has a history