person cuss asserted the earth revolved around the sun and transformed the earth into just another planet which in terms suggested other planets may have earth-like characteristics as well perhaps even hosting life. and in 1609 galileo was the first person to use the telescope for the purpose of astronomy. so the telescope led to new discoveries that informed the extraterrestrial life debate. for the feel that the size of the universe was much larger than what earlier observe efforts assumed it to be. so, by the end of the 17th 17th century the tide of informed opinion shifted towards the plurality of worlds doctrine which became rooted in science rather than theology. another important contribution was evolutionary theory, which was popularized by charles darwin in the middle of the 19th century with his book "the origin of the species" and although he did not mention to topic of alien life, his research really presented scientists with a powerful theory for the extraterrestrial life debate. new advances in astronomy would bolster the under pleasurity of worlds doctrine and the prospects

this is not an argument between those that think the earth the earth is at rest and those that think the sun is at rest. everyone with a few interesting exceptions in the ancient world thought the earth was at rest and the things in the sky were going around the earth. earth. the argument was about how they go. one theory adopted by aristotle was that the planets are bright spots on the spheres that rotates with the earth as a center. but the spheres have the axis of the serum in which the plan that is attached to the outer spheres and the axis of the outer spheres were attached to yet further spheres so that you have a complicated rotating mass but all of them rotating with the earth as a center. the other theory had a the planet going in circles but not around the earth, around moving planes in the sky. the circles were themselves around the earth or went around other moving points which went around the earth, so the cycles on at the cycles. the followers argued that their theory is that the data which it did pretty well for reasons we now understand. in this sense it was the equiv

the big unknown that influences all earth systems is climate change. linked to human emissions of greenhouse gases like carbon dioxide, global climate change is already changing the earth system. schrag: one often hears environmental scientists talking about tipping points. tipping points are parts of the earth system, when pushed to some threshold, they actually respond in a very abrupt way generally collapsing. we could be talking about fisheries, where we fish up to a certain point, and then all of a sudden as we fish any more, the population collapses. we could be talking about a tropical forest, where we start cutting it down and everything looks okay, until suddenly we cut one tree and all of a sudden e forest is noger able to sustain itself. or we could be talking about climate change where we add carbon dioxide to the atmosphere and the earth warms and greenland slowly melts until all of a sudden, suddenly, it starts to melt faster and faster and greenland suddenly collapses. these are tipping points. many of them are unknown in the earth syste

everything we do makes life better here on earth. every single dime of the taxpayer's money adds to the amount of effort that goes into teaching kids stem-related courses. so my $18 billion budget, i take $18 billion and put it on stem education and put it on feeding people. and, and some folks may say (makes noise) you bein' cute. i'm not bein' cute. ask a young lady who is, an expectant mother in some village in south america who now has a midwife with a doctor 200 miles away and the midwife has, you know, a little instrument that they can look at the fetus and beam it to a doctor wirelessly 200 miles away so that the doctor can, can tell. that's space exploration being delivered to that village. or somebody who is drinking clean drinking clean drinking water and cutting down on the death rate of, of infants. those are some of the results that come serendipitously in many cases from nasa research and technology development. >> charles bolden is the administrator of the national aeronautics and space administration. great to have yo

a critical step towards living long periods off planet earth.e you to get used to drinking urine? col. hadfield: we all drink reprocessed urine every day. dinosaurs were here for millions of years it and they were big. and all the water on earth passed through a dinosaur's kidneys at some point. assuming all of the dinosaurs had kidneys, and i assume they did. the real question is, do you have a good purification system? whenever you flush a toilet on ortho or wherever, obviously it does not magically disappear. it goes into a process to purify it. maybe it will turn into rainwater. the difference on a spaceship is you know who's urine it was. it is different if it is a little more personal. the process is much closer and closed. but to leave earth, to turn our , tail and leave, we have to go from 93% water recycling to 100% water recycling. we do not have an infinite supply of water on a spaceship if it is a long voyage. we will have to find a way to even improve that. one of the things we are doing on the space station is proving technology th

i remember in arm geto -- armageddon they managed to save earth but some hit earth. one decapitated the capitol building. they were aiming for major human mondayments around earth. movps of earth's surface is ocean. they will probably hit the social. and you can still get to destroy the city with a tsunami. >> rose: what was the last big one that came to earth. >> two years ago february in russia. two years ago one the size of this studio traveling 40,000 miles an hour, collided with earth's atmosphere above the town of-- in the euro mountains of-- . >> rose: what would have happened if it hit the center of manhattan island. >> well, so-- so that-- that happened to explode about 20 miles up okay 20, 25 miles up. and that's high enough so that that energy gets deposited into the atmosphere and dilutes before it reaches earth's surface. but even so that was enough of a shockwave to shatter essentially every single window in the city while people were looking out their window to wonder what the light was that they had just seen. light travels faster than sound. so they

it is sort of like saying, what is it like on earth?ed is a kid will ask, when you exhale in space if heat does not rise, why does your breath not just slowly collect and suffocate you? i think the difference is, by the time you have reached some level of adulthood, you have put limitations on your life. you have decided, these are the things that are never going to happen in my life. your level of engaged curiosity drops way off. whereas if you are nine years old and you are watching a video of someone explain weightlessness and what that actually means, they see themselves as part of that process. it is one of the many things that may still happen in my life -- their life. they become very engaged. if they are engaged mentally they are challenging themselves to think new things and perhaps make decisions with their lives that will expand who they are. brian: how big is the canadian space program? col. hadfield: it is tiny. the canadian space program, the budget of the entire program, is less than the communication budget of nasa. just

if someone says the earth is round and some and says the earth is flat, at some point you'll make a judgmentearth is flat people are flat-out wrong. i will not be giving them the attention, we are wasting time and we're not doing service in my role of informing the public. and so, i think journalists are smart people and highly educated and curious. they have curiosity that kids have that they still have installed. -- have as adults. that is a great thing to have. at some point, invest your brain energy to recognize when something is fringed. report it that way. when you do that, people are properly informed about what is and is not true. what is in emerging truth? what is a truth that is in doubt? what is something has been refuted? responsible on that frontier. it will help my job. charlie: i'm sorry to tell you this but you are a journalist. neil: you don't have to apologize. neil: i host a talk show. i cannot say i'm not a journalist. charlie: not only that, but you are in pursuit of questions. neil: yes. charlie: which is what journalism is about. i thought you might have a disparity in

so happy earth day, everybody. [ cheers and applause ] it is earth day.id you know it is earth day, guillermo? >> guillermo: yes, sir. yes, yes. >> jimmy: you know it is earth day. i bet the earth got so many messages from people on facebook today. the first earth day took place in 1970. the rate we are going the last one should be soon. we rely on the earth for our lives and don't take care of it. i was trying to figure out why. i think i did it figure it out. i don't think the earth has a very good marketing guy. good slogan, like snack in to a slim jim. let me know what you thichlt let's run through them. it is earth, an awesome place to be. too generic? all right. try. this earth, this ain't your mama's plast planet. [ cheers and applause ] technically it is your mama's planet. so that's confusing. this one, earth rated number one in customer satisfaction. here's another one, earth we've got tacos. [ cheers and applause ] >> guillermo: i like that one, yeah. >> jimmy: earth, i'm lovin' it is another one. i think that's taken. one more, i think this mi

here is earth. most of the time, the darkness hits earth, there is only single cell life.f we are randomly coming upon planets and earth is any measure of things -- we spend 3.5 billion years as single cell life on earth. that we have an explosion of life. the chemistry of the atmosphere changed. oxygen is like rocket fuel for complex life. life now has the launch to become complex. the system could support it. now you have limbs and detectors like eyes and sensors. it is a stunning development. then you have complex life. that is a smaller piece of the total timeline. where will you find intelligent life? we only know this little bit that we define as intelligent. there are planets we could land on. who is to say we will find what we call intelligent? maybe the planet has conditions that are specially right for complex life. if they did, they would have billions of years to develop intelligent life. if that is the case, it is quite clear to me that if they are observed us and landed here and looked, it would be clear to them that there is no sign of intelligent life on ea

the big unknown that influences all earth systems is climate change.ries, where we fish up to a certain point, and then all of a sudden as we fish any more, the population collapses. we could be talking about a tropical forest, where we start cutting it down and everything looks okay, until suddenly we cut one tree and all of a sudden the forest is noger able to sustain itself. or we could be talking about climate change where we add carbon dioxide to the atmosphere and the earth warms and greenland slowly melts until all of a sudden, suddenly, it starts to melt faster and faster and greenland suddenly collapses. these are tipping points. many of them are unknown in the earth system because we don't the details of how everything works well enough to predict exactly where those thresholds are exactly where the tipping points might occur. and yet we know they're there, and we worry that more and more human activities over this next century are gonna lead us to irreversible consequences. there are so many different ways that humans affect the earth system

sort of like what's it like on earth? and i realized a kid will ask, so when you exhale in space and heat doesn't rise why doesn't your breath collect and suffocate you? and an adult will say what's it like in space. and i think the difference is by the time you've reached some level of adulthood you have put limitation ons your life. you have decided these are the thing that is never going to happen so your level of engaged curiosity drops off. when you are nine and you're watching a video on weightlessness then they see themselves as part of that process and it's one of the many thing that is may still happen in their life. so they become very mentally engaged. to me that's delightful. because if they're engaged and they are challenging and thinking of new things and perhaps make decisions with their lives that will expand who they are. >> how big is the canadian space program? >> it's tiny. well depending on what you compare it to. but the canadian space program, the budget i think is less than the communications budge

as space technology overlaps with life here on earth and life on earth extends to space, there's no doubt that the iss is helping us explore new ways to improve our health and better our lives. exciting new breakthroughs, only outer space can provide. for "vital signs," i'm dr. sanjay gupta. big day? ah, the usual. moved some new cars. hauled a bunch of steel. kept the supermarket shelves stocked. made sure everyone got their latest gadgets. what's up for the next shift? ah, nothing much. just keeping the lights on. (laugh) nice. doing the big things that move an economy. see you tomorrow, mac. see you tomorrow, sam. just another day at norfolk southern. i knew init's crest hd.his was...wow! it's amazing. new crest hd gives you a 6x healthier mouth and 6x whiter teeth in just one week. it gets practically every detail. that's why it's called hd. try new crest pro-health hd. >>> 3:00 eastern, i'm poppy harlow joining you from new york. ahead this hour, the democratic field for president just got larger. former maryland governor marlin o'malley makes his bid official. his complicated histor

go to make this a more sustainable and responsive and resilient city please join me in celebrating earth day and welcoming our own mayor, mayor ed lee (clapping.) thank you deferring i didn't. >> thank you to you and your leadership at the department of investment happy adding everybody and have earth day at the at&t park park with our teams wonderful teams i can't ask for a better day except for golf anyway this is our 45 anniversary of earth day i can't think a better way to celebrate that will i continuing our cities long tradition of being a leader and innovator and team player that bring together your community and business leader and city departments to address cliemg together today, i'm pleased to be joined and i by teams like our san francisco giant and warriors and e context and capillaries and the business council on inclination and community leads and my department that be standing in front of great green gloves and to announce our city's new campaign called zero 50 one hundred keep it simple (clapping.) you know so stipulated i am trying not to announce brand new initiatives

i thought i want to work with earth, wind and fire, it will be my mission and goal to get to earth, wind fire. >> why is that? >> when he turned me on to the group i loved then. i made it the goal. he was in my head saying "you'll never work with earth, wind and fire." i got there. every art. >> from usher to prince is on though tree. >> is on the tree from earth, wind and fire. >> yes, the gap band. all came from earth, wind and fire. maybe that came from sly a little. but maurice was fierce. he was fierce. >> "after the love has gone", soul. >> got to tell the story. i was sitting in an officers playing an album that i want the artist signed. he didn't like the album. i bsed him saying this is not the whole album, i have more songs. he said "like what." i said "like this." i swear to you, i went to the piano, and it fell out. i was totally lying, i had no songs. i went over and wept ♪ oh ♪ ♪ after the love has gone ♪ ♪ what used to be right ♪ ♪ is wrong ♪ ♪ can lovers lost be found ♪ time. >> come on back over, that's how it fell out of you. >> he was what was that, it's better than an

. >> the next step in lunar flight was to burn out of earth orbit for the moon. then pull free of the third stage and dock with the lunar module aquarius. at the controls of the command module odyssey, jack swaggart. >> we are hard docked. >> good deal. >> they pull aquarius away from the saturn third stage the s4-b. >> i can see it now at the hatch window. >> odyssey and aquarius moved away from earth for the moment. -- toward the moon. >> ok houston, we've had a problem here. >> say again. >> we've had a hardware restart. i don't know what it was. >> houston, we've had a problem. >> you see an ac bus under bold? >> the crew reported. >> we may have had an instrumentation problem. >> we had a pretty large bang associated with a warning. >> the sensation i had that i felt the vibration accompanying the bang, not a large vibration or shutter. >> any kind of leads we can give them? do we have a real problem? >> we are reading 0.2 pressure in fuel cell one. >> what do you want to do, open the circuit fields? >> that's a roger. >> shut down the reactor valve. i asked

they were back on the math to earth. but there were many other problems to be solved. from a building at houston's manned spacecraft center systems experts coordinated the coast to coast effort to get the crew back. one of the big problems was consumeable consumables. in space there are other factors, oxygen to breathe electrical power to keep the spacecraft alive, water to cool the equipment and keep it operating. >> what we'll be doing until they get them back on the water is concentrating on everything that their lives are dependent upon at the moment rather than worrying about the accident. there's nothing we can do about that you now. it appears at the present time everything is under control and that we have a safe situation at the moment. >> i want to say you're doing good work. >> so are you guys, jack. >> we are about 70 hours from home and we think we have the situation in control. we projected the consumables as i've described and we have a plan for carrying out the rest of the mission but there is going to be no relaxation at all until splash. >> a key deci

. >> thank you for your presentation that was useful information today earth day so happy earth day toveryone it was to the be considered that was earth day and i forgot all about it now i'm wondering if there's been i guess any you know april 22nd is earth day and this month has the puc done outreach in terms of the website p this is informing people of our programs i think if we don't it will be great to get handouts it looks like it was done in the 80s but i did not it was and that was produced by the pg&e and. >> the sierra club oh, their stuck in the 80s did i say that. >> (laughter). >> we have materials they need to be updated just this week and last week an agreement 101 on the program report and the fairness board we've got information that is solid we'll develop the materials that xhupz that. >> i do love the 80's i'm stuck in that we are are a okay. anything else to add to lafco staff. >> i think i did my comments at the beginning we'll have a lot of great movement so i'm looking forward to see that moving forward i've been working with supervisor breed's to get the informat

the earth is covered by ocean yet we know about the planets more than we do about the surface of the. my question to you is, why should we care about what's down there? >> we are just starting to understand how the ocean and the deep ocean is going to be on providing global scale. >> and it seems like a harsh landscape down there and very, very far down. and there are a few technologies that allow us to go down there and you have a chance to go down there. >> 10,000 feet, just to get a chance to go down there it's tricky. i had a chance in a submarine called alvin. take a look. >> as we look for signs of life in space, these sients of the scientists of the deep are unlocking the secrets of below. >> what we're doing is astronauts and planetary scientists trying to study the life on another planet. >> oceans cover city% of the earth's surface with only a small parnlg part of it explored. we are traveling to costa rica to begin research of an underwater mountain the dorado outcrop. while biologists like me tend to focus or interest on the biodiversity of costa rica hundreds of miles to

teams and resident all of us working together we have a great reason to celebrate on this adding happy earth day to everything go giant go warriors let's keep the strongest teams together thank you very much (clapping) wow. this was fabulous so i want to pick up on a theme the mayor talked about that is nooerts that is the importance the teamwork as the director of the department of the environment we can't achieve what the city needs to have happen i don't think the leadership and the vision of my teammates and they're standing right here today, i'm so deeply grateful for the effort 38 they make and the vision for 50 one hundred i want to call out some of the people ed reiskin from the sfmta (clapping) he didn't even own a car this man (laughter) he walks the talk pasture monique moyer from the court who deeply believes in the importance of urging our property to lead the way and demonstrate what is possible facebook's from rec and park (clapping) there's nothing that says environment are mohammed nuru from dpw (clapping) that man as ground level in his blood i'm convinced his blood arrest

what can this do for productivity on earth? through video conferencing top corporate management can now get a round table with counterparts and customers in europe or asia. participants are in awe of the new opportunities. that the camera sees all is often forgotten. sometimes it's safest to stick to old questions. how's your weather? it has brightened up. american banking is thoroughly at home with global technology servicing american companies instantly, wherever they may be. support on any one day for an american multinational is described by chase manhattan banker michael urkowitz. without the technology without the instantaneous availability of information, that corporation might have had idle funds sitting in its account in frankfurt while at the same time sitting with possibly an overdraft on which it would pay substantial interest in mexico. with this technology the company can very efficiently in effect, fully deploy its financial resources around the world. technology comes down to earth when it affects your own pocke

> you'll met the scientists putting faith in amazing technology, intended to turn down the heat on earth. critics say this amounts to hacking the planet. i'll take you inside the risks and rewards of climate engineering. traditional utilities trying to pull the plug on americans to harness the heat of solar power to save money and the planet. >> this is an example of heading towards sustainability where we need it most. if it doesn't work in hawaii, it ain't going to work anywhere. i'm ali velshi, and our special fragile planet power struggle starts now. >>> it's a power struggle, how to balance the need to conserve our fragile planet with man's appetite for enemy. carbon-spewing fuels like coal, gas, oil generates and powers cities and engineers cities. all comes at a place. the environmental protection agency estimates a third of greenhouse gas emissions in america are spewed from power plantsment that's a reason why governments and businesses arrived the world are preparing for a future when earth's average temperature is hotter than it is today. the danger that global warming debate.

nauntsz we're honored to join you mayor ed lee and larry bear with the giant and wish you a happy earth day thank you (clapping.) >> so we're coming to a close here i want to acknowledge my right hand person my right hand man who i lean on sxhavn to give me voices and team you that is mr. roger kim from the mayor's office (clapping) so with that that end a really exciting morning but not eergd so many of us are getting on the phenomenally muni bus wore to reside to the paperwork we'll join a larger celebration i might you all to join us and thank you, mr. mayor and leadership giant and warriors and department heads and thank you to all the businesses that have worked with us to make this happen thank you so much

that blue glow that the earth gives off, we were just stunned.most incredible thing ever. >> cinematographer luke geissbuhler loves doing cool projects with his son max, especially when they involve cameras. >> we came upon this project online. and the potential of the outcome was so huge that we couldn't pass it up. >> the boys plan on launching a camera into space with the aid of a helium-filled weather balloon. >> it took about eight months to research it and build different crafts and do tests. >> i mean we attached a parachute to like a little thingy to it from the kitchen window down to the backyard and we found place to deploy. >> we did a little altitude test because we wanted to put it up in the air and bring it down. >> the first model of it had wings and a tail fin. >> we were looking at things like how shaky it would be, how much it would be influenced by wind, things like that. it actually told us a lot. >> it's essential the aircraft rise and fall with as little resistance as possible. this will keep it stable enough to capture a st

and you can see how the earth's atmosphere has changed through time.y mailbox that said, "how would you like to work for a research program "in the institute of polar studies looking at ice cores?" and so i took this position. it took me about a year, year and a half, to really start to realize what was archived in those ice cores or the potential. and at that time all the work was being done in the polar regions. narrator: during the 1950s and '60s, ambitious drilling programs in the remote ice caps of antarctica and greenland provided an impressive record of past climate, such as ice ages and warming events going back hundreds of thousands of years. but these records only provided part of the climate's history. as a young man thompson's interests lay outside the arctic. he set a goal -- to drill ice where no one had ever drilled before. in the polar regions at the time, there was a lot of competition and no one was looking anywhere else. and so i'm thinking, "well here's the rest of the world. why not?" and then, of course, if you start thinking abou

"caught on camera: what on earth?" rescue workers race to save a woman who's been trapped beneath a collapsed building for 48 hours. january 12th, 2010. just before 5:00 p.m., an historic 7.0 magnitude earthquake strikes the caribbean island nation of haiti. in just 35 seconds, most of the capital city of port-au-prince lies in ruins. surrounding areas are flattened. >> what happened in haiti was beyond anything i've ever seen. >> the disaster is compounded by the fact that haiti, one of the world's most impoverished countries, has a vulnerable infrastructure and poorly conducted buildings. strong aftershocks further traumatize the capital's 2 million residents. news of the earthquake travels around the globe. on another island across the ocean, icelandic rescue hears of the disaster. they're a group of volunteers in iceland. they are trained for emergency rescues on land and sea. they immediately prepare to deploy. >> i was called and ask if i was able to go. i said yes. and things evolved pretty fast after that. >> t

to april is earth day we volunteer earth or earth day but we're protecting our own homes in the naturalreas and rec and park he do that everyday. >> i can see clearly now the rain is gone. >> parks on april 18th we held the festival with the support of eco center over hundred parents learned about renewable energy and tried rock climbing and on the crafts keep an eye out for july and october on april 23rd we celebrated take our daughter to workday to think about the futures and learn about things we love the energy the department on may 2nd did parks awe alliance and the rec and park supported the volunteer work party to beautify the park space. >> bright bright sunny day. >> so again everyday is earth day but a little taste of what happened in april to that that concludes my presentation. >> this is a knows for you who knows we're going to adjourn to a joint meeting with the planning commission at 11 and 1045 this clock is slow but 1045 conclude and have an intermission please come back and we'll resume or stick around inform the joint meeting with the planning commission. >> public co

come and save the earth from demons! " so visnu descended to eah as prince rama greaslayer of demons. but in the court of the king, his father rama's young and beautiful stepmother whispered against him. so prince rama and his wife sita were sent into exile with his brother the faithful lsma, in tark forest of dandaka. at the palace, the healess queen celebrated her triumph with music and dancing. rama and sita were happy in their green retreat until the clever demon king ansformed hielf into golden deer. ma set out to hunt the magic beast. sita was left alone. ( woman screams ) the quiet of her forest home was pierced by a serving maid's screams. the demon had come to steal sita away upsettinthe household's rice. in the confusion, th dogs had their fill. rama grieved and the forest fell silent. as he knelt to fetchater brother laksmana felt the patter of the salty rain. high in the treetop above him was the monkey king, weeping. "noble princes," he said "help me to rein my throne and i will rescue sitarom the demon." (

on the map of the earth you can see the crater cutout by the object.ennedy: come back to you talk about science please will you return? i will provide you with sweet treats. >> okay i cannot refuse. kennedy: are there any truth to constitutional rights to privacy? looked at rand paul he made it to first base. next. is impactful?" what the cloud enables is computing to empower cancer researchers. it used to take two weeks to sequence and analyze a genome; with the microsoft cloud we can analyze 100 per day. whatever i can do to help compute a cure for cancer, that's what i'd like to do. new york state is reinventing by leading the way on tax cuts. we cut the rates on personal income taxes. we enacted the lowest corporate tax rate since 1968. we eliminated the income tax on manufacturers altogether. with startup-ny, qualified businesses that start, expand or relocate to new york state pay no taxes for 10 years. all to grow our economy and create jobs. see how new york can give your business the opportunity to grow at ny.gov/business kennedy: it into your

to april is earth day we volunteer earth or earth day but we're protecting our own homes in the naturalreas and rec and park he

e buddha of the west: "i call the earth to witness." the buddha of the south: "i grant the wish of the suppliant." as the pilgrim journeys to the summit around and around the labyrinthine corridors narrative reliefs unfold before him. fables of enlightenment, from the buddha's 550 earthly lives. reborn one last time as prince siddhartha buddha tastes th sadness of human life. ma drawn forward by a hundred threads of hop does not see death as the wretcd elephant sated by the pleasure of his food does not see his chains. on the narrow pathways of the phenomenal world, spirits draw the pilgrim upward to a higher realm of formlessness. ( gongs chime ) e summit of borodor: round terraces meet open sky. no stories; the narrative is over. the ultimate is within sight though beyond the pilgrim's grasp. pilgrim, all things are mind. there is nothing to practice, nothing to prove nothing to gai nothing to lose. all is dream all is illusion. ( woman singing ) what powers lie in the hands of invisible gods? wayang, the play of shadows, is a distant