Introduce you to the men and women confronting the militant threat. Thanks for joining us. It looked like a perfect launch initially on a picture perfect aukt evening. But then an unmanned rocket exploded just seconds after liftoff. We want to show you how it happened in realtime tuesday night on the virginia coast. Watch this. And we have liftoff of the antares, on this is Third Mission to the iss. Main engine at 108 launch team, launch team, be advised, stay at your consoles. Maintain your positions in your consoles. In the lcc, maintain position just stunning to watch that. Unbelievable. And you also saw the explosion and heard it there. Bit of a delay on the video shortly after. The fire was raging after that rocket fell back to earth. It did seem to heavily damage the launch pad. Its 3 00 a. M. On the east coast in the u. S. Soon as daylight comes, theyll be spending a special team to investigate what happened. That rocket was carrying food and supplies and classified equipment as it was on its way to the International Space station. The rocket was valued at 200 million. The private contractor will lead the investigation into the explosion. The u. S. Federal Aviation Administration and nasa will assist. Our team worked very hard to prepare it. We conducted a lot of testing and analysis to get ready for this mission. However, something went wrong, and we will find out what that is. We will determine the root cause, and we will correct that and well come back and fly here at wallops again. Hopefully in the very near future. But well do all the things that are necessary to make sure it is as safe as we can make it, and that we do solve the immediate problem of this particular mission. Lets go ahead and show you another view of the explosion. This is from a pilot who was watching it all happen from a small plane. The weather was just perfect at the time, as you can see by the visibility here. And you see the flames and then the huge fireball when it crashes back down to the earth. The launch had already been delayed a day because a boat was too close down range in the rockets flight path. Incredible images there. Nasa officials are promising a thorough investigation to find the cause of the explosion and fix the problem. I talked about it with cnn aviation analyst myles obrian. Do you have any idea, of course they dont know at this point, but from what youre able to piece together so far, what do you think went wrong here . Well, its complicated business. They dont call it Rocket Science for nothing. And getting from zero to 17,500 miles an hour is not an easy task. People forget this is not routine business. It is not. The fact that it happens at all is an amazing an amazing an ama. And it didnt take much to go wrong to have things go wrong in a cat clis mick way. Were talking about oxygen and fuel pumped in at huge rates. Swing pools as quickly as a second, that kind of rate. And with its explosive capability, with a small leak, or a small failure of a turbo pump, can cause cataclysmic results very quickly. Its a reminder to all of us that getting to space is not easy. Its a good thing that all the safety net around the entire launch, led to, yes, the launch of a rocket, some proper damage, but nobody got hurt. Thats the critical thing. We know from nasa officials, that they will send out a team to try to discern what went wrong here, and to assess the damage to the launch pad there. How long do you think it will take them to piece this together and work out what exactly went wrong so that it wont happen again . Well, you know, its interesting. We talk about the crash of a commercial airliner, were always looking for the blackhawks. Harkening back to mh370. Wed like to know where that black box is. The black box is essentially on the ground in Mission Control. So it wont take long for them to put together what went wrong and where the problem was very quickly. When you see Mission Control and the people at the monitors, they are looking at in real time, whats happening on that rocket. So the forensics in this situation are im not going to say its easy, but getting the data is not as much of a problem as it would be if youre looking for the black boxes, say, for an airliner. We know on board there was Food Supplies, equipment. But at this point, do we know if the International Space station, the members there, the crew members, were reliant on those supplies getting to them . How long can they last before another rocket needs to be sent out to send those Food Supplies, specifically . Well, nobodys going to starve on the International Space station. We shouldnt worry about that. There are plenty of extra supplies on board. And theres a steady stream of rock theats make their way up to the space station to resupply it. The California Based Company spacex is spending rockets up there under a similar contract with nasa. The russians have their progress vehicles. The japanese have the capability. Theres lots of ways to get to the space station and get supplies to it. It may mean the next one would have more food rather than equipment. But theres plenty of margin in this process. If youre an engineer for nasa, you have to assume there will be failures like this, you cant assume every rocket is going to arrive like the fedex truck in the morning. Just doesnt work that way. Miles obrian, always a pleasure. Thanks so much for your analysis. We appreciate it. All right, at this point, we want to bring you some breaking news coming to us out of zambia on the Southern African continent. The president michael sata has died. He had been receiving medical care for the past week. We dont have word yet on the exact cause of death. But the 77yearold president was unable to address the u. N. General Assembly Last month, you may remember, there were suspicions and questions at that time about his health. The video youre seeing now is from last year. He left for treatment in london abruptly missing the 50th anniversary of zambias independence, a very big event, participated by many in the country. Mr. Sata appointed his minister of defense and justice as acting president before he left for london. Were just getting this confirmation now from the zambian government. Do stay with us as we chase additional details. But this unfortunate news into cnn. Zambias president , michael sata, has died. All right, we want to go to kazakhstan now, were actually looking at a russian soyuz rocket about to launch. And it is taking, coincidentally, supplies to the International Space station. Now, of course just moments ago, i was talking to miles obrian, who was explaining at some point another rocket would go toward the International Space station, and would take supplies. Because the one that blew up, the one we were telling you about, that explosion took with it all of the Food Supplies that were heading for the iss, to the crew members there. They do have supplies on stand by. Theyre not going to run out of water or food. But they certainly want to make sure that that remains the case. So were waiting here in actual fact this very minute, it is supposed to take off. So were waiting for that countdown to watch this launch in kazakhstan. You can see there, its being released. Were ready for liftoff. And of course were hoping for smooth sailing. It looks like its great weather on this day. And were hoping it will be quite a contrast to what we saw off the coast of virginia on tuesday. Here we go. Doing the countdown. Lets listen. We have main engine start. Engine turbo pumps coming up to flight speed. Engines at maximum thrust and liftoff. Liftoff of the iss progress 57 cargo ship, bound on a fasttrack to the International Space station. All first stage engines are up and running, in good shape, all parameters are normal according to the report at baikonur. All structural parameters in good shape, 40 seconds into the flight. All looking good so far. And i must say, i dont know about you, but i was certainly holding my breath, certainly after youve been covering an explosion of a similar rocket, taking supplies to the International Space station. It is a little uneveryone nervi. As miles mentioned, its not routine business sending these rockets into space. Theres a lot that has to go right. Weve seen it many times. Things go wrong. Rockets explode. But in this instance, it certainly looks like from here that this has been a successful liftoff in kazakhstan, of this supply rocket to the International Space station, taking food, taking equipment to the crew members that are there. So that is good to see on a lovely clear day in kazakhstan. And now to this, syrian kurds defending the city of kobani against isis are about to get some badly needed help. Around 160 peshmerga fighters are passing through uon their w. The troops will bring weapons and will join the fight against isis. As you can hear, the battle rages on in kobani in this cnn video, shot just a short time ago. Now, we want to focus on the syrian kurds, and what they are fighting for. Turkey says they have links to other kurds that it regards as terrorists. But the u. S. Is counting them as its newest ally against isis. Ivan watson has more. Reporter dont be fooled by the pretty song. These women are part of a militia that is isiss most deadly enemy in syria. Kurdish fighters from the Peoples Protection unit, our ypg. Theyve fought isis in the ground in syria for more than a year. Only recently they started getting help from the u. S. In the form of air strikes and weapons drops. A surprising turn of events for this secular marxistrooted movement, which includes many fighters who have long battled americas nato ally, turkey. An important part of this kurdish movements ideology is founded on gender equality. That means female fighters fight and bleed on the front lines. That stands in sharp contrast to isis, which has been covering women up and hiding them from public life. Addressing the crowd, a top kurdish official, who urges the fighters to protect their people from becoming slaves of isis. She is the copresident of one of three kurdish statelets in Northern Syria that have largely governed themselves for the last three years. Translator our dream is to build a Democratic Society that includes arabs, christians, and kurds, living together in unity. Reporter the kurds call their region rojava. Some of them clearly proud of their experiment in selfrule. Life in the town of dedic looks relatively peaceful and secular. Unlike other parts of syria taken over by islamist militias. But the streets here feel empty. Many of the towns christian residents have fled and more keep leaving. This is a sad day for your family. Why . Yes, because they were driven from our country. Peters tearful mother and sister wave goodbye from inside a 1954 ford desoto. Their final destination, germany. The towns shrinking christian flock can still walk to sunday school, enjoying the protection of the kurds. But the kurds are paying dearly. At this memorial ceremony, mothers and wives of dead fighters and this widow. She said isis killed her husband last year and mutilated his body. Translator if i didnt have these children, i myself would go and fight. Reporter her young son already wears the uniform of a future kurdish fighter. Ivan watson, cnn, Northern Syria. The white house is investigating some suspicious cyber activity on its computer network, but its not calling this a hacking incident, and its not placing any blame either. A white house official tells cnn the investigation has resulted in some temporary outages in the system, but that official stressed that the outages stem from the investigation itself and not have suspicious activity. Rosemary . And the u. S. Is beefing up security on the ground as well. Thats to protect nearly 10,000 government buildings, and the 1. 4 Million People who visit them each day. The department of Homeland Security calls it a precautionary move. Its in response to terrorist calls for strikes on american soil and other targets, after two deadly attacks in canada last week. Well, the u. S. President is trying to ease worries, while taking aim at several state governors. Still to come for you, the ongoing debate over ebola policy. What the white house is doing and how critics are responding. Plus, lava from a volcano is nearly at the doorstep of some homes in hawaii. We take a look at its destructive path. Thats next. Welcome back. The second u. S. Nurse who was infected with ebola is now out of the hospital. Amber vinson contracted the virus after treating a liberian man at a hospital in texas. Her case raised additional concerns because she flew on two commercial flights after treating him. With her release, there is now only one patient battling ebola in the united states. I want to sincerely thank the professionals who have contributed to my care here at emory and at Texas Health Presbyterian hospital dallas. As a nurse and now as someone who has experienced what its like to be cared for through a lifethreatening illness, im so appreciative and grateful for your exceptional skill, warmth, and care. While this is a day for celebration and gratitude, i ask that we not lose focus on the thousands of families who continue to labor under the burden of this disease in west africa. And it is certainly great to see her released from hospital and feeling obviously much better. One thing i noticed for these nurses, they are thrust into the national and international spotlight, beyond the experience of having ebola, ter easea ramos in spain as well. And way before any of these nations had a grasp of how they should respond. Exactly. So they were at the front lines, basically. Yes. And u. S. President obama is planning a meeting at the white house aimed at underscoring his support of ebola volunteers. Hes also clear in his opposition to quarantines enacted by individual states. But as jim acosta reports, critics insist the u. S. Policy on ebola remains inconsistent. Good afternoon, everybody. Reporter president obama tried to address a critical part of an ebola response, containing an outbreak of fear. This is something that will get fixed. America in the end is not defined by fear. Reporter so the president called on stage to follow the cdcs less stringent guidelines for Health Care Workers returning from west africa and to steer clear of tough quarantine rules. We got to make sure that those workers who are willing and able and dedicated to go over there in a really tough job, that theyre applauded, thanked and supported. That was a not so subtle jab at new jersey governor chris christie. He was asked whether he might be sued. Whatever. Get in line. Get in line, im happy to take it on. But even as the president tried to calm fears, his administration created more confusion with the army going beyond protocols and placing soldiers in quarantine. I dont understand how the government can take jabs at the governors of new york and new jersey for doing things that his own military is doing. As the New York Daily News put it, where the hell czar you . Since joining the administration, klain has been out of the public eye and his twitter account has gone silent. The White House Press secretary insisted klain has performed well in his first week on the job. What has he done . Well, there are i guess there are a couple ways to answer that question. Ron has arrived early in the morning, stayed till late at night, convened a variety of meetings with senior officials at the white house. The president will be meeting with doctors who have been in the ebola hot zone here at the white house on wednesday. This comes days after the president hugged a nurse who contracted ebola in dallas and survived. All part of a white house strategy to try to make the point that Health Care Workers fighting ebola should be embraced, not feared. Jim acosta, cnn, the white house. The u. S. Ambassador to the United Nations is now in bishs capital. Thats right. Samantha power arrived in monrovia tuesday. She told reporters she wants her visit to show solidarity with the people in west africa, so they know theyre not alone in facing this ebola epidemic. The World Health Organization counts more than 10,000 confirmed or suspected cases of ebola in west africa. More than 4,900 of them have been fatal. Its feared the real numbers could be much higher. We are watching a river of hot molten lava closing in on a town in hawaii. Well show you whats already been destroyed and whats under threat now. Welcome back. Some families on hawaiis big island are watching helplessly as lava inches closer to their homes. We can show you some aerial drone footage of how close the flow is to the town of pahoa. The river of molten rock had has claimed one structure, just a garden shed. But about 40 to the 50 homes are among the first group of residents in its projected path. What will the next day hold . Ivan cabrera joins us now with what local residents can expect. People do get volcano insurance, to some extent, right . These are constantly bubbling islands. Nlts absolutely. These are volcanic islands. Some of the residents have been saying basically they expected it at some point here, but its always sad when it happens to you. By the way, those pictures there, the black smoke you saw, i believe that was when it rolled through essentially some abandoned cars and some tires that were in its path here. So we were burning rubber along the way. And my goodness with 2,000degree heat, yeah, anything in its way is going to be taken here. And as rosemary mentioned, that farm shed has been impacted, the first Residential Property to be impacted, but thats just the beginning. Lets reset in case youve not been following. The volcano itself has been spewing lava for about 30 years. And its been doing so safely down to the south towards the ocean. But what happened over the summer, we had vents that opened up in the crater to the