last asteroid that hit the earth in nineteen zero eight because. of that phenomenon in two thousand and eight. hundred years a fast and another asteroid maybe on its way to strike the earth any time. now our american colleagues are thinking about reorients and their national flood programs to research asteroids the probability of division from treasure tori's and subsequent folds on earth under these circumstances is totally pulled in so preserve the earth for mankind but also to have some reserve planet as an alternative this is why scientists and other people will turn in their eyes from mars where conditions of habitation are in a way similar to the ones that we have on earth. that is why it's possible to turn this parsons for a reserve home for a person. of our military you're the commander of an international career so do you think we will eventually have an international space agency or it will be better to conquer space through national programs and you forseeable future because in five or ten years say you will be a decision maker in this c

because you've just asked a question about mankind and all planet earth means for it. i agree with mystery that for mankind the earth will always be a common one for all people. there's a direct threat that humanity is going to lose its home. there's a huge belt of asteroids around jupiter and mars. as frauds have always been a hazard that hasn't disappeared nowadays and people are becoming aware of that city due to the asteroids fall in the earth every one hundred years on average for the siberian natural rights for it was the last asteroid that hit the earth in nineteen zero eight we think. of that phenomenon in two thousand and eight. hundred years have passed and another asteroid may be on its way to strike the earth any time. now our american colleagues are thinking about reorients and their national programs to research asteroids the probability of their division from trajectories and subsequent falls on earth under these circumstances only pulled in to preserve the earth for mankind but also to have some reserve planet as an alternative this is why scientists an

and here's what's coming up tonight on the big picture it's friday and earth day joining me tonight for our conversations and great minds as i'm a scientist and author dr good steak or discuss his latest book which shows how our actions now will determine the fate of its future plus the g.o.p. is the g.o.p. is playing hardball concerning the nation's bottom line we come to some sort of agreement with democrats discuss the possible outcomes rights. and finally democrats are trying to cut off corporate cash in our elections and republicans are freaking out to take a look at a time in american history before corporations could legally buy our politicians. for the rights conversations and great minds i'm joined by a renowned ecologist and paleoclimatologists his work is featured in dozens of scientific journals and periodicals including national geographic currently teaches at paul smith college in new york as a researcher at maine's climate change institute or bring to the table an interesting new perspective on climate change and the future of our planet he's also the author of a new book

earth share. one environment...

after earth fire, she could not get passed the fire. water follow it had ship and wind was able to go across and follow and find him. it was after many years that wind was able to find him. i'll read that last part. [inaudible] all living in the americas, i saw the taken shackled to the land from sun up to sun down working tobacco, sugar cane and rice. i listen to them tell stories different but strangely familiar. now prayer rabbit. i stopped by kitchens and watched our women with cook yams, rice, oh kra and beans. our children had not forgotten. and i rejoice, led by the sound of a black smith's hammer, i travel to charleston, south carolina, john shannon, black smith. a large european with red hair, comfortable. they were apprentices to all africans new and old, familiar yet fresh. i have sold another of your beautiful gape with the rice design, how did you learn to craft so well? a young man stepped into the light. i learned by reaching back with one hand and stretching forward with the other he said. people said you are a genius. m

he asks why can't we feel the earth rotate and why can't we see the earth's moment. >> these are deep questions. >> they are deep questions. here is the deal, sierra. the earth makes one complete rotation on its axis every day. since the circumference of the earth is about 4 hour miles and since it takes the earth 24 hours to make a complete spin, steve, you are the math major. that mean the earth is spinning at a rate of 1,000 miles per hour. you would think we could feel it because we and everything else on the planet is moving at the same rate as the earth itself, we don't feel it. >> before a highton tech graphic there. a picture of the earth. >> if it stopped. >> than we would feel it. if for some reason -- the other thing is the motion of earth is very smooth inform it were bumpy for some reason, we would feel that. and if it stopped, that wouldn't be pleasant. that is why we are all moving at the same rate as the earth itself, about 1,000-mile per hour. >> a nice comparison is what you are sitting in your car and you are cruising along and you hit a pothole. >> when you are in

at present it is not known if weapons capable of striking targets on earth are already deployed in space however orbiting insult systems are being researched. the u.s. military is developing what the air force in particular has called prompt global strike that is basically currently we have nuclear missiles that could strike anywhere on earth within thirty minutes. what the military is talking about is a similar conventional capability that could be used to knock out say a chinese anti-satellite weapons launcher in a matter of minutes. a number of concepts are being studied with this notion of prompt lobel strike. in two thousand and eight fifty million dollars was allocated to project a supersonic plane capable of reaching any point on the globe in only a few minutes and drop up to six times of bombs. one is orbiting space satellite that would actually have missiles on it that could be fired from space and reach a target in literally five to ten minutes as opposed to the current thirty minutes . military doctrine also for seize deploying gotta reserve missiles that or the planet strikin

the moon and the earth. the moon does not have an atmosphere so it has no trappings of gases like methane and co2, and so forth which are the reason global warming is happening. the moon has an average temperature that's about 33 celsius less than earths on average. so the greenhouse effect is a natural phenomena. the greenhouse effect your used to hearing about on the news by president bush and all those other experts is the incremented effect well we've added about a third to the sea level and as well as others but if you want to question the viability of the physics, here's a great example. now, this is looking forward. these are these so called, emissions scenarios. you heard of the intricate climate on government changes which will announce it's first reports for the global assessment coming out this summer and spring and in order to conduct those experiments they have to make assumptions about the future. what sort of loading of the atmosphere we'll see in terms of greenhouse gases and here's a swarm o

everything that comes from the earth. we celebrate, we celebrate these blessings, we love these blessings so we represent them with seven "s's." this is a sign of health, the apple. please, can you put it there on this table? next, we have --, this is sour but it is good for your health. this comes from any other fruit. this is the vinegar. it was very hard to carry out. oh, -- is good for many things. persians knows for what. this represents wealth. i don't know why. let me see what i have. egs-- eggs, i don't know why we put these. it does not start with s. we put this on kabob. we love this. do you love this? yes, you do. c'mon, this is very good for your health. this is garlic, for your health. everything is for your health. 1, 2, 3, 4, 5, 6. one more. oh, money. this is for wealth. those people who are wealthy, they have a lot of this. yes. there are many more but i forgot to bring them. i came in a hurry. this is kind of crushed now. this is the greenery. we love this. i don't know for what. there is a big one, you

i want to you mr earth when you were in space at the core. of my flights were always so short during my second flight i even asked mission control to prolong my mission it was supposed to last eighteen days but our landing was postponed due to bad weather in kazakstan i think you'd better ask this question to those who have been on six months or longer missions i was not tired of it i wanted to keep working. how does the earth look from space which great you're right it was beautiful i was especially impressed with the sunrise and sunset during my second flight we actually followed the sun on one of our obit passes it was like the sun never sets half of it was in the earth's shadow and we could see the other half it was beyond words the earth itself is beautiful to a season oceans have the most beautiful color they are dark blue in the middle and greenish assured when you look down you see mountainous desert cities huge rivers everything that there is on earth. you could have there were you could i think do you believe in god now or she would

we would be able to dominate the earth. didn't last very long the soviets out of our time across the chinese and on the top. right wisest raised to think that we can move up there with weaponry and be allowed to be the king on. the throne of space is a tragic miscalculation. everybody thinks that when things is a dangerous idea that old problems other countries to also develop space weapons mr . india has been discussing whether or not it needs to build its own. and you can be sure if india does it pakistan will be thinking about it in a heartbeat as well israel has also been discussing this issue so what you see now is a potential for domino that if some nations would yield to american domination others would attempt to counter the united states think and cast the control of space by a single superpower all nations most stable and unstable will be dragged into a new arms race. the european union has been up until now opposed to the weaponization of space. but for how much longer soon is immunity for the us continues to dev

stabilizing effect on earth. the weaponization of space could be the trigger that unleashes nuclear war. signy anxiety and just by putting weapons in space or launching weapons from space downs were. cording juice by accident by human fallibility god designed by terrorists take on a launching out through nine thousand hydrogen bombs inducing short ice age in an adjacent my screeches on the planet. well the age of the nuclear precipice about. the military use of space seems inevitable the rapidly evolving technology and the lack of a strong treaty these the door open to the most bellicose vince thinks in space. every year the air force academy adds its most brilliant graduates to the ranks of the masters of spades the chances for preserving outer space for peaceful ends remains the challenge of the world at large usually we're trying to bring back weapons systems after they've been deployed nuclear missiles we're trying to bring them back here's an opportunity one of the first times in history actually that we hav

that we want to see us as it was the world's first earth battle what if won. the cold war launched a space race that would capture our imagination and feed our dreams of cosmic exploration for decades to come. but crossing the frontier the on the speed of the space but also revolutionize life on earth. out of sight hundreds of kilometers above our heads a fragile network of satellites manages are interconnected society. of the one thousand satellites in orbit today almost half belong to the united states not only making the united states the most advanced space nation but also the nation's most dependent on its assets in space space is the backbone of our national security there is no substitute and there is no alternative to military dominance in space and this conviction should drive our course for the next fifty years. the us air force academy in colorado springs where the military space elite of tomorrow has trained seizure and. people in rome you better understand for a justice that they can eat entire earth during the previous two. roads in fruit pirates

>> i am interested in the physical properties of the earth and how the earth will behave: subject to different load changes. when you are building a building, you are applying a load and you are wondering if the earth will be able to supply that load. we work closely together and we come up with practical engineering solutions. >> this is when someone wants to build something. also, we have a rock piece of land. we have to have a resolution. >> in the u.s., about 2/3 of the population lives in areas that are prone to landslides. about $2 billion of damage occurs annually from landslides. unfortunately, 20-25 million people die as a result of landslides o. >> much of the coastline is either a bright red or a beige print th. >> here we are at the base of telegraph hill on lombard street. this is owned by the city. behind you is a large piece of something exposed. you are looking at a large class that was xextricated in a quarry about hundred years ago. this is a secretive sandstones, shales, accumulated debris. essentially it ended up piled up here. the quarry activity was so intense a

but crossing the front tier the understeer into space but also revolutionize life on earth. out of sight hundreds of kilometers above our heads a fragile network of satellites manages are interconnected society. of the one thousand satellites in orbit today almost half along for the united states not only making the united states the most advanced space nation but also the nation's most dependent on its assets in space space is the backbone of our national security there is no substitute and there is no alternative to military dominance in space and this conviction should drive our course for the next fifty years. the us air force academy in colorado springs where the military space elite of tomorrow he's trained so you're. right. people roaming you better caesar augustus than a hand in the entire earth during previous. grooves in fruit pirates no longer threatens ships on the high sea. life was so good during this time. that the pier even acquired. it was and is still referred to you yes the pirates room which means the roman peace. another theory that he says acquired. is

"african cats" opens tomorrow, earth day. disney, our parent company, is contribu trigtributing to the a wildlife foundation. >>> finally tonight, senator john ensign of nevada announced today that he is resigning, elected to the senate as a family values conservative. in 2007, he began an affair with the wife of his best friend and top staffer doug hampton. he gave an exclusive interview to "nightline" two years ago, charging that ensign had broken senate rules and the law when his parents paid the hamptons $96,000. that payment has beennd

the drivers did their part on earth day by gassing up with biofuel. the biofuel is made with cooking oil collected from local restaurants. >> thing we are excited about is able to deliver to the public. >>> and 4:15 a gallon, it is 25 cents cheap are than the petroleum offered at bay area gas station. >> recycling old oil is the best thing to do. for fuel it was oil that would go to waste and the engine loves it. >> three, two, one. >> all right. first, baby. >> the lieutenant governor gavin newsom, markederth day for a solar manufacturing facility. >> looking at solar, this is lower coast in the day than gas fire power and lower cost nuclear power. the event celebrated and all of the progress is represents and a larger effort to replace traditional energy sources like coal and including solar and wind and water generated power. >> by the end of the decade, we want to make sure we are getting more power from solar and wind combined nan we are from coal. >> it seems like a modest goal since earth day began in 1970. >> think about what happened in 40 ye

return one of them, any one of them, to the earth and look. such foolish skipping, such telling of bad jokes, such feasting. even a cucumber, even a single anise seed, feasting. and, last poem, foolish of me and yet optimism. the title is only optimism. the other part was a preface. more and more, i have come to admire resilience, not the simple resistance of a pillow whose foam returns over and over to the same shape, but the sinuous tenacity of a tree finding the light newly blocked on one side, it turns in another. a blind intelligence, true, but out of such persistence arose turtles, rivers, mitochondria, figs, all this resinous, unretractable, earth. the next reader is summer brenner. . >> i'm going it read today an excerpt from anana, queen of heaven and earth. i wanted to say a few words about anana. this is the oldest literary work that we have. these are the cuniform tablets that were excavated in the late 1880's and early 1890's by the university of pennsylvania. tens of thousands of fragments of cuniform fragments. the story of anan