what time is it on the earth? how many flashes have been emitted on the earth during this trip? 25! so, from the earth... 25 x 6 is what, gang? mmm! eee! now, let me ask you a question. you know, when you see these guys, they got the green pea and they got the three jars and they go like this, like that, all right. which one's it under? and you always guess wrong. but you know, there's a catch, because they're pulling-- they're very, very skilled, and they're pulling something over on you, right? and you always-- or a card trick, right? dah-dah-dah-dah-dah, right? where's the catch? i've got a friend that does the card tricks. how do you even suspect? this guy is so good i've even suspected him of really being magic and pretending he has skill. you know what i mean? he's so good, okay. but anyway, there's always a trick. where's the trick here, gang? where did i trick you into thinking that 2 hours on one frame of reference would be seen 2 1/2 hours on-- does that make sense? what did einstein say common sense was? that layer of prejudices laid down usually by the age of 18. this do

but how about the force that acts on the earth? the mass of the earth is like this. and when you take that force acting on a humungous mass, you get an acceleration like this. see it? [laughter] it's like negligible. and see, you don't sense it. but if the earth was smaller and this more massive-- in fact, what if this was as massive as a whole world and we held it like this and we dropped it. how far will it go, gang? will it go all the way down there? - halfway. - it'll go halfway. right. because if this was a mass of the whole world, then this would come down just as much as the earth would come up and it meets halfway ain't that neat? ain't that neat? so you can take ideas and stretch them, stretch them, stretch them and they become fascinating. i take a rifle. i fire a rifle. bam! any force act on the bullet? oh, yeah, honey. you know darn well a force act on the bullet, 'cause fooom! that bullet accelerates humungous acceleration. so you know there's a force in the bullet. any force kicking back on the gun? let me ask you a question. can there be a force on the

and you see the earth. you see the earth at what time? you see the earth 2,000 years ago. and if you could really resolve that and get a clear image, you would really see what the earth looks-- never mind the books, never mind the carbon dating, never mind all the records. honey, you just look and you'd see it. now has anyone put a mirror up there for us? haven't found any mirrors yet. but here's some speculation. i wonder maybe just matter in the universe might be able to reflect and the image might be there. maybe in the future, we can do such things. it'd be kinda blurry, but who knows. at this point nothing much surprises me. another effect of relativity of high speeds is the increase in momentum of things, but more than the speed would dictate, it appears that the mass itself, the mass of an object itself increases with speed. and we have a relation for that and that relation is this. would you guys like to have a real rush, a real rush? by that i mean, you know, sometimes you go out and you see a sunset and you look at the sunset and the sunset is so beautiful and yo

in other regions, the surface of the earth is torn by giant cracks. in coastal regions, the excessive withdrawal of groundwater can cause other problems in addition to subsidence. beneath land, groundwater is fresh, but underneath the sea floor, it is salty. since fresh water is less dense than sea water, fresh groundwater just inland from the coast will tend to float on top of a salt water base. if fresh water is pumped out faster than it can be naturally replenished, sea water will flow in to replace it. as a result, the well water becomes increasingly salty, making it useless for drinking and poisonous for irrigation. other groundwater pollution problems also exist, involving contamination from many sources such as factories, farms, septic tanks, garbage dumps, and less often, radioactive waste depositories. headlines like these about toxic drinking water have been all too common in recent years. one way in which we pollute groundwater is through badly designed or improperly maintained landfills. when rain leaches the pollutants from a landfill int

its process of crashing back to earth tonight. no one is sure where it will hit but the sheer size of the object is captured attention around the globe. don dahler has more. >> reporter: the gravity field and steady state ocean circulation explorer or goce was launched in 2009. it ran out of fuel on october 21st and has succumb to the very thing it was designed to study-- study, gravity where. it will drop no one knows but cbs news space consultant bill harwood says it's not likely to hurt anyone when it does. >> they estimate that the odds of getting hit by a piece of space debris are about one in a trillion. goce's fiery end will look something like this video of a pure mean spacecraft reentering the earth's atmosphere in 2008. it explode mood thousands of people before crashing into the pas civic. in fact, that's where most unmanned spacecraft end up when they lose orbit. in recent years a nasa satellite, a russian space probe and the mir space station all splashed harmlessly in the ocean. >> every year literally dozens of obje

here's how far she is away when she weighs 400, one earth distance away, the radius of the earth away, distance of the radius of the earth. when she's up here, she's two earth radii away and you all know, i think all of us, yeah? we all know what the value is gonna be up here in newtons. let's hear it altogether, louder, a little louder. 100ths. i heard, everybody say 100, right, even the wimps, right? there's no wimps in here but its 100, gang, 100, you see that, you see that? could you guys have got that under pressure? could you? well, maybe under pressure that's something different but you see what you do? you just simply say, hey, if this changes then how does this change? and if i make this like twice as much, then 2 squared is 4. so you'd have 1/4th the force. i hope you can kind of do that kind of stuff, relationships between different things. some people thought, some people thought that gravity was rather local and some evidence for that was back in the early 1700s when looking at the planets, the astronomer types know that when a planet goes by jupiter, for example, the pla

do these planets that orbit their stars in orbits that remind us of the earth, the size of the earth, do they actually have liquid water? >> ifill: those are just some of the stories we're covering on tonight's pbs newshour. >> major funding for the pbs newshour has been provided by: ♪ ♪ moving our economy for 160 years. bnsf, the engine that connects us. >> the william and flora hewlett foundation, working to solve social and environmental problems at home and around the world. >> and with the ongoing support of these institutions and foundations. and... >> this program was made possible by the corporation for public broadcasting. and by contributions to your pbs station from viewers like you. thank you. >> ifill: the white house spent another day on the defensive today about whether it over- promised on its health care plan. president obama said americans would be able to keep their existing insurance, but insurers are canceling thousands of policies. lawmakers from both parties are now complaining about a process they say is at best unclear and at worst seriously flawed. medica

. >> the plan receipts are roughly the size of earth so between earth size and twice the size of earth and they receive about the same amount of star light from the host star so like earth in that respect but don't know anything more about the planet other than the size and rough temperature so we don't know if they have the liquid water. don't know if they have life. or intelligent life. but certainly raises the if number of planet that could possibly support life as we know it on the earth. >> are you surprised by the number. 8.8 bill i don't know golde block planet just in the milky way are you surprised. >> i am surprised. the number before keepler before this analysis was entirely unconstrained so while there was reason to believe that the sun is typical star so why shouldn't other subpoena have planet like the earth? really just no evidence so while we might like to have thought planet like the earth were comcommon throughout the galaxy we didn't know. this is first step to pinning down the number. the number is 22 percent of sun like star with plan it roughly earth size and roug

the control room has a bank of tvs and they have google earth to play with. cnn, bbc, probably al jazeera and local tv channels. they are using that to guide the men on the ground. >> 10 men did as much as they did, it was incredible. despite having controllers in pakistan watching the news reports, guiding the guys from a distance with new technology, it's amazing they could do that. is it a failure on the part of the indian government? >> it's a failure. it was attacking on a busy night in mumbai, in multiple locations giving the impression that there were more there than there were. total surprise and unpre-preparedness. >> i don't think they developed the intelligence. they were given warnings by of the c.i.a., western intelligence agencies other are than the c.i.a. >> given the warnings, some said there may have been intentional disregard of the warnings. is that anything... >> i put it down to systematic failure, not conspiracy. there has been a tendency in india to allow certain events to unfold to demonstrate the enemy outside. what you have here is s

it's just that the earth is curving under. let me give you a fact that a geography teacher can tell you about. if you go out 8 kilometers, that's 8,000 meters this way, you'll find out there is a five meter vertical drop. you will be 5 meters higher than you were over here. we live in a world that for every 8 kilometers you go out, tangent-wise, there's a 5 meter drop. that's all i'm saying. but that 5 meters turns out to be interesting, because we've learned something about 5 meters, gang, haven't we? what have we learned about 5 meters? let's suppose we take this laser, throw it away and we put a cannon, a cannon, newton's cannon. we'll put it right here and we fire a cannonball. is that cannonball gonna follow that straight, straight path? the answer begins with an n. hc? how come? because it's not beginning with a g. don't understand it very well but we have it a little bit together. what is it called? - gravity. - gravity. gravity is gonna pull which way, up or down? - down. - down. watch. let's suppose i fired the cannon

a european weather satellite about as big as a car came back to earth overnight. according to the european space agency, the satellite disintegrate high into the atmosphere and caused no damage. don dahler has more. >> reporter: the gravity field and steady state ocean explorer was launched in 2009. it ran out of fuel on october 21st and has succumbed to the very thing it was designed to study. gravi gravity. cbs analyst don dyer says -- >> they estimate that the odds of getting hit by a piece of space debris are about one in a trillion. to put that in perspective, your can chances of getting hit by lightning is 1.14 million. it explode into thousands of pieces before crashing into the pacific. in fact, that's where most unmanned spacecraft end up when they lose orbit. in recent years, a russian -- nasa satellite, a russian space probe, and a spice station all landed harmlessly in the ocean. >> every year dozens of objects return to earth in similar fashion, but this one is unique return to earth in similar fashion, but this one is unique as it's a large spacecraf

its job was to map the earth's gravitational field. ironic, now goche, at more than 2,400 pounds is drifting back toward earth. it's expected to come crashing down soon, but exactly where is much less clear. on timing of impact, an official with the european space agency told "the new york times," concretely our best engineering prediction is now for a re-entry on sunday with a possibility for it slipping into earth monday. it's easy to track satellites, because they're always close to the earth, but asteroids are much harder to find and much more dangerous. the question is, do we know where they all are? >> if it's really big, we -- we know where they are. we know where the big ones are, the ones that would render us extinct or possibly disrupt civilization as we know it. >> as far as goce and the other satellites, they're easy to track. there's an app for that, right there. here are all of the satellites still pinning around the earth, and most of them will some day have a date with gravity. scientists say debris is falling to the ea

all these stories, read tomorrow's baltimore sun. >>> live outside of earth -- life outside of earth? the idea gets a big boost today. >> reporter: the space craft is a marvel of human design. it's parked outside the gravitational pull of earth. it's looking for planets that can support life. the science team has added 800 planets that could support life. >> there are probably many more earth-like planets in our galaxy. >> reporter: an earth-like sweet spot maybe as close as 12 light years away. >> if one of those planets is from the 12 light years, you could be looking at one that has it orbiting it. >> reporter: 12 years. it's 72 trillion miles, so don't go booking a rocket ship just yet. >> it's going to take a very long time. 12 light years is a long way off. >> reporter: at the science center, life doesn't mean intelligent beings. >> life as we know it forming over millions of years of evolution is hard to make. that doesn't mean we can't find life in simpler forms. >> reporter: big things based on a simple idea. watch for the moon shadow cast upon a far away planet. >> reporter:

. >> most of the earth is covered by water. the chances are it will land in the ocean. >> he is one of many bay area residents visiting the foothill observatory. his assumption is spot on. >> the chances are that nobody will see it. it will land in the ocean and nobody will notice except a few fish. >> the european space agency says it should re-enter sunday or early monday. >>> coming up on abc7 news, the reason a specially trained police team could not make it to the navy yard shooting. >> and wt you thought were private pictures and posts were now made public. the facebook function that allows anyone to see what you are up to and why there is no -- there is not much you can do. >> and the pope clowning around. why he >>> did you see it? the meteor lit up the bay area sky. bay area news group photographer snapped these pictures from san lorenzo. this is the third night in a row the meteors were spotted. we are in the midst of the meteor shower and it peaked and can produce some stunning shooting stars. >>> traffic is to blame

it ran out of fuel last month and gravity pulled it back to earth. it re-entered the atmosphere tonight. the officials say most of it incinerated. the rest of it. we landed in the ocean. the chances of someone getting hit by the debris are slim. they say you are more likely to get hit by lightning or win the lottery. >> it is 1 in a trillion. >> yeah. >> the satellite's mission was a success. it was sent into orbit in 2009 to map the earth's gravitational field. we'll be right back. online may attract burglars? avel plans [woman] off to hawaii! what if you didn't know that as the price of gold rises, so should the coverage on your jewelry? [prospector] ahh! what if you didn't know that kitty litter can help you out of a slippery situation? the more you know, the better you can plan for what's ahead. talk to farmers and get smarter about your insurance. ♪ we are farmers bum - pa - dum, bum - bum - bum - bum♪ to thoseworried...ited... poked and prodded... taken risks... and lived in a state of "what if?"... welcome to a new state... of health. welc

it jt that the earth is curving under. let me give you a fact that a geography teacher can tell you about. if you go out 8 kilometers, that's 8,000 meters this way, you'll find out there is a five meter vertical drop. you will be 5 meters higher than you were over here. we live in a world that for every 8 kilometers you go out, tangent-wise, there's a 5 meter drop. that's all i'm saying. but that 5 meters turns out to be interesting, because we've learned something about 5 meters, gang, haven't we? what have we learned about 5 meters? let's suppose we take this laser, throw it away and we put a cannon, a cannon, newton's cannon. we'll put it right here and we fire a cannonball. is that cannonball gonna follow that straight, straight path? the answer begins with an n. hc? how come? because it's not beginning with a g. don't understand it very well but we have it a little bit together. what is it called? - gravity. - gravity. gravity is gonna pull which way, up or down? - down. - down. watch. let's suppose i fired the cannon

. >> most of the earth is covered by water. the chances are it will land in the ocean. >> he is one of many bay area residents visiting the foothill observatory. his assumption is spot on. >> the chances are that nobody will see it. it will land in the ocean and nobody will notice except a few fish. >> the european space agency says it should re-enter sunday or early monday. >>> coming up on abc7 news, the reason a specially trained police team could not make it to the navy yard shooting. >> and what you thought were private pictures and posts were now made public. the facebook function that allows anyone to see what you are up to and why there is no -- there is not much you can do. >> and the pope clowning around. why he the meteor lit up the bay area sky. bay area news group photographer snapped these pictures from san lorenzo. this is the third night in a row the meteors were spotted. we are in the midst of the meteor shower and it peaked and can produce some stunning shooting stars. >>> traffic is to blame for preventing a

in the beginning, god created the heaven and the earth. and the earth was without form and void, and darkness was upon the base of the deep, and the spirit of god moved upon the face of the waters and god said, let there be light, and there was light. and god saw the light. that it was good, and god divided the light from the darkness. >> and god called the light day, and the darkness he called night, and the evening and the morning was the first day. >> in the beginning, the void, the darkness. then light. then life. and from life came man. joining the caravan for the long, slow journey through a world of discovery, invention, exploration. his marks, his milestones stretch out through the milest stretch out through the centuries. his footsteps echo down through the corridors of time. time. july 1969 in florida. the footsteps, the caravan quickened, the corridors shortened as man reached outside his world into another void. ♪ today in florida, they go about their lives, taking only a side ways glance at the reminders of that milestone, r

>> 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

the torch has successfully returned to earth story. and now the longest torch relay in olympic history is set to continue we'll bring you details. from a studio in moscow this is r.t. with international news and comment. has signed an agreement with the un's atomic watchdog which allows it access to several of iran's nuclear facilities including the controversial iraq heavy water plant but there is no progress in the latest round of talks on how to limit iran's nuclear program france is widely blamed for storing a breakthrough while israel lashed out a desire lies for negotiating what it called a dangerous deal. more. so long ago that the talks did seem promising you have the rainy and foreign minister meeting with the european union policy chief foreign policy chief catherine ashton in the mood in that meeting was certainly one optimism but israel has been opposed to these negotiations from the start saying that iran will cheat anyway and in fact israel has always been against. on yahoo says is that easing sanctions on iran would be l

determine what's going ohappen to earth. -- to happen to earth. >> and at some point, scientists could say that this will give them a window of if mars was very similar to earth 4 billion years ago, what types of things are they going to learn about our own climate? and again, we are now about a minute away from the launch of maven. this has been eight years in the making prospect nasa has worked extremely close with lockheed martin and university of colorado, boulder, the scientists work on it there. this is important for the scientists and the students. ie as we prepare for that plawmp therlaunchthere is a hush over h pad here. we are several miles from the launch site, but in this area we can see from a long distance. again it is a very exciting day for the engineers here but of course what we could learn because of this mission not only will tell us so much more about mars but it could tell us the future or how we can save the future of earth. >> t minus ten, nine, eight, seven, six, 95, four, owners-five, four, three, two, one, main engines start and liftoff of the athat the 5 wit

ever recorded on earth. and they've hit within six months of each other. in climate science, in the insurance business, in public policy, they always stipulate that you cannot one storm to climate change. so stipulated. it is also, however, willful blindness to not just observe that we are now experiencing more storms of record intensity. and that is the global calamity adjunct to the national calamity that has befallen the philippines, where haiyan came ashore. this is what the aftermath looks like, still, nearly a week later in the city that took the brunt of haiyan's destructive force. and aid is getting into some places in the philippines, but it is not enough and it is not to enough places yet. the head of humanitarian efforts for the u.n. today said so very bluntly. she said, quote, we have let people down, because we have not been able to get in more quickly. we are all extremely distressed that we have not managed to reach everyone. but the effort to reach everyone now is mammoth and well underway. t

let me in, earth, wind & fire. i can be moisture! (cheers and applause) ♪ do you remember, t words to this song, la, la, la ♪ (laughter) folks, obamacare is like an impossibly hip club that covers your rip replacement. so come on, obama, there's got to be a v.i.p. list. i tried showing up to the web site with two models and a bag of coke. but all i got was two coked up models! (laughter) god, they need some health care. i'll just keep trying, but in the meantime, mr. president, please do not fix the web site. i wouldn't want this exclusive club to be ruined by a bunch of poor people. (laughter) and, folks, i believe the only thing worse than obama's web site is his lack of foresight. now, our neville chamberlain in chief loves surrendering to america's enemies and this weekend he sent secretariat of state john kerry to wave the white flag at iran. >> secretary of state john kerry is in switzerland to negotiate a possible break through to freeze iran's nuclear program. >> the united states is largely looking for iran to take the f

what if it hits a really populated part of earth? my customers can shop around-- see who does good work and compare costs. it doesn't usually work that way with health care. but with unitedhealthcare, i get information on quality rated doctors, treatment options and estimates for how much i'll pay. that helps me, and my guys, make better decisions. i don't like guesses with my business, and definitely not with our health. innovations that work for you. that's health in numbers. unitedhealthcare. i got this. [thinking] is it that time? the son picks up the check? [thinking] i'm still working. he's retired. i hope he's saving. i hope he saved enough. who matters most to you says the most about you. at massmutual we're owned by our policyowners, and they matter most to us. whether you're just starting your 401(k) or you are ready for retirement, we'll help you get there. [ dings ] ♪ [ male announcer ] every thought... every movement... ♪ ...carefully planned, coordinated and synchronized. ♪ performing together with a single, unite

proposals on the floor and the scientists are wrong thanks to climate change the end of life on planet earth could be coming a lot sooner than we all think i'll explain why in tonight's daily ted. efforts to reform the n.s.a. have reached a fork in the road in the senate there are two different reform bills currently being pushed there are a lot but there are two main reform bills currently being pushed one is by judiciary chairman senator patrick leahy called the usa freedom act and a companion bill was introduced in the house as well this bill actually includes some substantial reforms it brings transparency the top secret buys accorded fixes gag orders that prevent companies from sharing government information requests to their customers and it most importantly it bars the bulk telephony metadata collection on americans under section two fifteen of the patriot act also limits. under section seven of two of the amendments out altogether it's pretty good start but there's a competing and it's a reform bill in the senate one being championed by senator dianne feinstein the chair of the senat

. >> most of the earth is covered by water. the chances are it will land in the ocean. >> he is one of many bay area residents visiting the foothill observatory. his assumption is spot on. >> the chances are that nobody will see it. it will lande oceann the ocean d nobody will notice except a few fish.he european space ageny says it should re-enter sunday or early monday. >>> coming up on abc7 news, the reason a specially trained police team could not make it to the navy yard shooting. >> and what you thought were privatend posts were now made public. the facebook function that allows anyone to see what you are up to and why there is no -- there is not much you can do. >> and the pope clowning around. why he a man who doesn't stand still. atrial fibrilljim has afib, atrial fibrillation -- an irregular heartbeat, not caused by a heart valve problem. that puts jim at a greater risk of stroke. for years, jim's medicine tied him to a monthly trip to the clinic to get his blood tested. but now, with once-a-day xarelto®, jim's on th

proposals on the floor and the scientists are wrong thanks to climate change the end of life on planet earth could be coming a lot sooner than we all think i'll explain why in tonight's daily ted. efforts to reform the n.s.a. have reached a fork in the road in the senate there are two different reform bills currently being pushed there are a lot but there are two main reform bills currently being pushed one is by judiciary chairman senator patrick leahy called the usa freedom act and a companion bill was introduced in the house as well this bill actually includes some substantial reforms it brings transparency the top secret buys accorded fixes gag orders that prevent companies from sharing government information requests to their customers and it most importantly it bars the bulk telephony metadata collection on americans under section two fifteen of the patriot act also limits collection under section seven of two. the pfizer amendments act all together pretty good start but there's a competing and it's a reform bill in the senate one being championed by senator dianne feinstein the chair

ever recorded on earth. and they've hit within six months of each other. in climate science, in the insurance business, in public policy, they always stimula sti that you cannot one storm to climate change. so stipulated. it is also, however, willful blindness to not just observe that we are now experiencing more storms of record intensity. and that is the global calamity adjunct to the national calamity that has befallen the philippines, where haiyan came ashore. this is what the aftermath looks like, still, nearly a week later in the city that took the brunt of haiyan's destructive force. and aid is getting into some places in the philippines, but it is not enough and it is not to enough places yet. the head of humanitarian efforts for the u.n. today said so very bluntly. she said, quote, we have let people down, because we have not been able to get in more quickly. we are all extremely distressed that we have not managed to reach everyone. but the effort to reach everyone now is mammoth and well underway.

reducing emissions in sight europe law launches three satellites in a long awaited mission to study earth's magnetic field. search for survivors is continuing in the latvian capital riga after a roof collapsed on thursday evening in a busy street with dozens of people are being confirmed dead including some of the rescue black is not clear how many people may still be trapped underneath the rubble. it is to find them online. with more people believed to be under the debris. rescue workers in riga are continuing their search e crews are risking their own lines to search to the supermarket wreckage earlier three firefighters died in ten others were injured when another part of the building collapsed as the war. meanwhile people have been waiting for news of missing loved ones. my wife she's in there. i have no information yet and she's not among the dead or injured to where ever i called i never get an answer. the reason for that collapsed deal is it known that speculation his center around plans to build a roof top garden. media reports said the group was undergoing reconstruction authoritie

two ton european space satellite is expect the to plunge down to earth. it really ran out of juice last month. no one knows exactly when or where this thing will fall. but here's the good news. it is being tracked online and because the earth is about 70% water, it will likely fall into an ocean. >> let's talk about today's "faces of faith," about the pope's compassion and how he may be changing the catholic church with his, you know, ability to show it so freely. >> you have seen that photo that has become so iconic of the last week. pope frances welcome hundreds of people in wheelchairs to the vatican. he greeted them one by one with hugs and kisses and told them to never feel ashamed of the disability. now this is just the latest of the pope's inspirational acts. >> you eluded to this a minute ago. he embraced a severely disfigured man. the image was shared around the world. that man, by the way, suffers from a rare disorder of causing painful tumors all over his body. this moment resonated even with nonbelievers. >> one woman wrote i may be an atheist

the sun's effect on the earth's atmosphere. we see how it can change the temperatures for a brief period of time, as opposed to the global warming climate change effects that may be more related to or are more related to human activities. it's better to keep those two separate. >> let's move to the international space station, it hosted the olympic torch while it was there. it went into outer space on a spase walk - the first time the torch has been in the vacuum of space and created a situation when the soyuz got there, that it housed nine astronauts and cosmonauts. it got a little crowded in there. what is it like to be this that kind of confined space for that long, especially when you have extra people? well, it's better being on international space station with nine people than on space shuttle with 7-9 people. that would be a crowded situationment although it may not be as good as, you know, a large presidential suite in a fine hotel, let's say. for being in space it's nice accommodation, nice digs. there are some adjustm

of that group, ten are considered earth size. >> so that's all we know about these planets. we don't know if they have atmospheres. we don't know if they have liquid water. we don't know if they have life at all. but future missions and future scientists will answer this question. i think they'll look back at keplar as an important milestone. >> reporter: the mission only identifies planets that could be like earth. it would take another mission to actually find out whether those planets are like earth, whether they have a breathable atmosphere, oceans, clouds, mountains, that sort of thing. today's announcement kicks off the second ever keplar science conference going on all week here, bringing together 400 confm+÷nce going on all week discuss the three years of data collected so far by the space telescope. there's still a year's worth of data that has yet to be amized. reporting live at nasa ames, bob rydell, nbc bay area news. >> fascinating news. we're still waiting for e.t. to phone home. >> 800 new planets. we could get a lot of candy from those aliens. let's check in

among the strongest ever observed on earth, came ashore today and is tearing through the philippines. thousands evacuated ahead of typhoon haiyan. it has sustained winds of 195 miles an hour and gusts over 230. it is massive from space. forecasters expect catastrophic damage. we will have reports tomorrow. another natural disaster, this one in 2010, was the earthquake in haiti. and it was quickly followed by a devastating epidemic of cholera. victims blame united nations peacekeepers for bringing the disease to their nation. now they've filed an unprecedented lawsuit seek billions. jeff glor went to hate tow have a look. >> reporter: nearly four years after a catastrophic earthquake, this is haiti with 10 million people and little access to clean water, the country was hardly prepared for a cholera epidemic. lizette paul's family has been torn apart by the disease. her daughter, brother, and father all died. "when i think about them," paul told us "i know the pain they had to go through before they passed away." paul is now one of those suing the united nations for bringing cholera to

fairly frequently, maybe every day or so somewhere on the earth. >> reporter: there seem to be more sightings lately. >> reporter: i think there's more awareness of the asteroid hazard than there was before. >> reporter: the asteroid hazard became all too apparent in february when a flash in the sky over northern russia was so powerful, the shockwaves shattered windows, knocked people to the ground, and injured more than 1,000. the asteroid, 60 feet across, was traveling at 40,000 miles an hour. >> it was brighter than the sun- - 30 times brighter than the sun. >> reporter: scientists say there are some 20 million space rocks like the one that exploded over russia. scientific papers published yesterday predicted one could come every 10 or 20 years, rather than once in a century, as previously believed. if you find one, coming this way, how do we deflect it? >> we could launch a mission of a spacecraft that would go and hit the asteroid, moving in the opposite direction. that that would be enough to move a massive asteroid just a little bit and that would make it miss the earth. >> r

it will try to discover how mars went from being like earth to a barren desert. "consider this" with antonio mora is next. >> america's midwest struggling and picking up the pieces after a deadly storm. how unusual is it for storms of this magnitude to strike in november. oprah knows a reason president obama's policies are struggling - racism. has the first black president been unfairly targeted or is harsh criticism a relating all presidents face. >> and a launch to mars. >> i'm antonio mora, welcome to "consider this," we begin with communities recovering from killer storms - overseas, in the philippines and the midwest. where people struggle to restart their lives after the farm belt was battered. the skies cleared, tornados killed six people in illinois, two in michigan, injured hundreds in 12 states, leaving tens of thousands homeless or without power. here is what it looked like as the twisters descended on the mid west. >> our father who art in heaven. >> all we could hear was glass shattering. >> when we came out it was gone. >> warning. >> the game will

a different look at the planet earth. we talk with the scientist in charge of the images from nasa's cassini spacecraft about it's arresting snapshots from saturn. >> and of course they've been beautiful. it's bye-bye my objective since day one to make them as beautiful as possible, because i wanted to give people a sense of going along for the ride. >> sreenivasan: and it's friday. mark shields and david brooks are here to analyze the week's news. those are just some of the stories we're covering on tonight's "pbs newshour." >> major funding for the pbs newshour has been provided by: >> support also comes from carnegie corporation of new york, a foundation created to do what andrew carnegie called "real and permanent good." celebrating 100 years of philanthropy at carnegie.org. >> and with the ongoing support of these institutions and foundations. and friends of the newshour. >> this program was made possible by the corporation for public broadcasting. and by contributions to your pbs station from viewers like you. thank