Downloading Data News Today

Hello and welcome to all our viewers watching from Around The World. On an occurrent ahead on Cnn Newsroom mission, completes the Polaris Dawn Crew was splashdown in the Gulf Of Mexico, just minutes from now after a history making It Spaceflight Doubling down on fear and conspiracy, Donald Trump speaks of an immigrant to the takeover after spreading falsehoods about migrants eating pets and missile launched from Yemen Lands in central israel, setting off Air Raid sirens and sending residents run...

And the french do, as well, as the manufacturer of the plane. so they get that recorder back, they can start downloading data from it. if it is undamaged or if it is, you know, relatively undamaged, they can start getting data from that in as short as a few hours. >> so peter, now that the egyptian airport official is saying that he does not suspect terroristic activity, but we should mention there is an active isis aligned snurnl ee e in parts of the sinai, how would that help investigators? >>...

Ocean, he thinks this is what the surface zone nearly three miles down could look like. >> it is dark, it is very cold. >> with pressure so intense it crushes a styrofoam cup to a fraction of its size. the missing plane is believed to be 4500 meters, nearly 15,000 feet down. >> it is flat and the sediment is still. >> the extreme conditions will test the limits of the u.s. navy blue fin 21, beginning the slow painstaking process of mapping the ocean floor. >> people need to have patience. >> rep...

Sediment is silt. >> reporter: the extreme conditions will test the limits of the u.s. navys blue fin 21 which is beginning the slow painstaking process of mapping the ocean floor. >> patience, people need to have patience. >> reporter: mark matthews says just one mission takes 24 hours, two hours down, 16 hour hs of scanning, two hours up, another four hours of downloading data from the side scan sonar which maps the oceans floor. >> you see the trace of the outlines of the objects. >> reporter...

Closer and take pictures. >> not like theyre streaming live pictures to the service. >> all downloaded. the vehicle is very high-tech system that protects itself. 16 hours of bottom time, two hours to go down, two hours to come back, two to four hours of turnaround. and downloading data. it could come back on you and you only get eight hours or four hours that day. we have to couch the expectations of the public that this is a slow process. the 16 square nautical miles could be four one day, cou...

They wont hear any more pings. so they have a relatively small area that this sub messible has to go back and forth to try to find some wreckage. >> theyll send the av down. in order to take sonar images of the bottom, you have to get close to the bottom. thats a fact. the av will drive down there and run a pattern. and its limited. its 16 square miles a day plus or minus. thats not exact. thats if everything works perfect. because two hours down, two hours back, four hours of downloading data, ...

Australia says this is what the search zone nearly three miles down could look like. >> its dark, very cold. >> reporter: with pressure so intense, it crushes a styrofoam cup down to a fraction of its size, the missing plane is believed to be 4500 meters, nearly 15,000 feet down. >> its flat and its -- the sediment, its silt. >> reporter: the extreme conditions will test the limits of the u.s. navys bluefin-21 which is beginning the slow, painstaking process of mapping the ocean floor. >> patien...

Smile. nbcs kristen dahlgren joins my with the latest from the bronx. what do ntsb investigators hope to find? >> reporter: hi there, andrea. they now have really a three-pronged investigation going on. first those black boxes you talked about from the front car in the train, also from the rear car in the train. they are downloading data, analyzing it. they hope to find how fast it was going and whether or not and how brakes were applied if they were malfunctioning in some way. also doing you ca...

Youre making a bit of progress. one thing you told us youre concentrating on is you discovered a fracture on one part of the rail, involving one of the trains. the one that derailed yesterday. jumped the track. what are you looking for? >> well, were really trying to understand whether that was the cause of the accident or whether that was caused by the accident. so, well be sending a piece of rail into washington, d.c., to the labs for them to investigate that. >> how will you try to determine ...