a ceremony will be held today to remember the 843 men who lost their lives when hms vanguard sank off orkney injuly 1917. to mark the centenary of the disaster, a team of divers has been given special permission to document the wreck. our scotland correspondent lorna gordon has more. in the cold northern waters of scapa flow, the final resting place of hms vanguard, a dreadnought battleship from world war i. the bow and stern almost entirely intact after 100 years under the water. this the first group of civilian divers to be given permission to document the wreck since it was designated a war grave. i think the loss of life was never very far away from my mind as we're diving on the ship. that said, we had a job to do, and an obligation to do thatjob to the best of our ability. so you got on with the work but, yes, parts of the wreck are very emotional. very emotional indeed. newsreel: ships were steaming into their war base at scapa flow... along with many other ships of the royal navy, vanguard had been anchored in the seas off orkney.

she'd seen action at the battle ofjutland, but on a summer evening injuly 1917, the entire ship was destroyed after a magazine exploded. she sank almost instantly, with the loss of almost all her crew. 843 men died. only two of those on board at the time survived. the team of volunteer divers spent hundreds of hours surveying the wreck, piecing together its story. lying at a depth of around 100 feet, and among the many artefacts they discovered, the telegraph, an anchor, cutlery lying half buried in the sand. as part of the commemorations, vanguard's white ensign was recently replaced by divers. a century on, honouring the many lives lost in what was a catastrophic accident. what about the prospects for the

weather? lets get the latest details. further north for scotland and northern ireland, there is a different complexion to the weather. this weather front meanders southwards with some rain packing up. to the self of it, there should be dry and bright spells. it's no surprise, with those sort of temperatures is potentially 28 celsius. we could see thunderstorms running up from france. at the same time, the weather front further north is heading southwards. it's fresher behind it, and certainly a muddy night in northern and eastern areas. we could well have downpours with us across central and eastern

parts of the country. our weather front further north turns showery. we freshen up gradually, but we still have the heat in the south and east. hello, this is bbc news. the headlines. hundreds of kilograms of drugs and thousands of mobile phones were found in prisons in england and wales last year. the government has described the situation as unacceptable. the parents of charlie gard are delivering a petition to great ormond street hospital in london, calling on doctors to allow the terminally ill baby to travel to america for experimental treatment. sir vince cable, who's favourite to be the next leader of the liberal democrats, says he believes brexit may never happen. the iraqi government says victory over islamic state forces in the city of mosul is imminent. now on bbc news, witness. hello and welcome to witness,

with me, rebecca jones, here at the british library in london. we've got another five people who've experienced extraordinary moments in history first—hand. this month on the programme, a mother who took on argentina's military rulers to find her daughter. paul mccartney's brother who remembers one of the beatles‘ most famous performances. and an astronaut who survived a collision in space. but first, back in 1953, american husband and wife, julius and ethel rosenberg were executed by electric chair

after being convicted of spying for the soviet union. our first witness is the rosenberg's son robert. archive: one of the greatest peacetime spy dramas in the nation's history reaches its climax asjulius rosenberg and mrs ethel rosenberg, convicted of transmitting secrets to russia entered the federal building in new york to hear their doom. the last time i saw my parents was in sing sing prison, just a couple of days before they were executed injune1953. i have this very strong visceral sense of a warm and loving family. my father played word games with my brother. i sat on my mother's lap. they were pretending like nothing was wrong, that we'd see them, like we'd see them in another few weeks.

my brother, he knew that was wrong. and he wanted them to acknowledge the terrible situation that we were all in. and so he started wailing, "one more day to live." both my parents were children of the depression. they grew up in poverty on the lower east side of manhattan. my father, julius, was an electrical engineer. he was a member of the american communist party. my mother ethel was a housewife. my father was arrested in july of 1950, in new york city and my mother was arrested. both were charged with conspiracy to commit espionage. the government said julius rosenberg was a master spy who led an spy ring that stole the secret of the atomic bomb and gave it to the soviet union in 1945. julius was guilty of espionage,

but it didn't have anything to do with the secret of the atomic bomb. he had no knowledge of this. it's hard for me to believe that my mother didn't know about what he was doing. but there is no credible evidence that my mother participated in any way. this was the great red scare, the mccarthy period. the government was saying there was this international communist conspiracy that was out to destroy our way of life. fear makes powerful people do very dangerous things. the trial at which they were convicted was a travesty. we now know the judge secretly communicated with the prosecution, that evidence was fabricated. the chief prosecution witnesses perjured themselves. the government of the united states used the death penalty, not as punishment, but as extortion. the purpose, as one of the fbi agents put it,

we didn't want them to die, we wanted them to talk. there was a worldwide movement and mass movement, even within the united states at the height of the mccarthy period, to save my parents' lives. they were executed on june the 19th, a month after my sixth birthday. my brotherjust kind of hung his head. and i came in and i knew something was wrong, but i didn't want to hear about it. even a month after the execution, i was saying, "when are we going to go and see mummy and daddy." and he'd have to remind me they were dead. my parents should not have been executed and we took on a campaign to exonerate ethel. have we given up? no. we haven't given up.

my brother and i, we are marathoners. we are going to keep going. robert meeropol, remembering his parentsjulius and ethel rosenberg. now, back in 1967, the bbc organised a live international television broadcast called our world. they invited the beatles to play and they came up with a new song called all you need is love. paul mccartney's brother mike was in the studio when the performance took place. this is steve race in the beatles recording studio in london, where the latest beatles record is at this moment being built up. notjust a single performance, but the whole montage of performances. none of us knew what the hell was going on, but everyone went along with it and it was just a magic thing. # all you need is love. # all you need is love, love. # love is all you need.

it was all such an experiment. it was that ridiculous three, two, one... you're live to 700 million people. # all you need is love, love. # love is all you need. in 1967, i was in a comedy group, it was a satirical comedy, poetic word imagery group called the scaffolds. and i used to stay with my brother in his house. so he said, there's this big thing coming up, do you fancy coming along? the our world broadcast was this extraordinary idea to link all these countries. for the first time we can see right round our world from sunset to dawn by television. in 43 control rooms all around the world, production teams are monitoring and selecting the hundreds of pictures and sounds from five continents which will combine to make

this historic programme. and so, how do you wrap up what was happening in london in the 60s in one song? john had written this thing called all you need is love, which was a peace song. we'd had the vietnam war, kennedy had been shot and it seemed to sum up the hopes and positive thinking of that era. kill it. very good. that will do for the vocal backing, very nicely. we'll get the musicians in now. everyone was rather polite, very quiet because it was such a big thing that was happening. here then is final mix track take one of the song which we offer to the whole world. # love, love, love... and then to actually experience the slow and the format of the song,

you heard all the little bits fitting in and then the orchestra joining in. and it building up, and up, and up. it was getting better, and better and people where relaxing more. # nothing you can sing that can't be sung. the whole thing built slowly, slow and apprehensive at first. and then into it and thenjohn and our kid delivering the harmonies and delivering the song and then building up to the crescendo and then it was party time. # all you need is love. all our friends are there, mickjagger from the stones, marianne faithfull, his girlfriend, all the cream of pop society. everyone is on such a high, the placards are going round, the balloons, the confetti is like snow, you are covered in snow, etc.

and this atmosphere was electric and beautiful. # love is all you need. and it goes to another country and then this beautiful atmosphere in the studio. right, it's a wrap, love. and we all went home. laughter. mike mccartney in the beatles home town of liverpool. for almost 20 years, the nobel prize—winning author, ernest hemingway, had a house on the caribbean island of cuba, where he wrote some of his bestselling novels. as a young boy, alberto ramos worked on the estate and he later became hemingway's cook. alberto ramos, speaking to us from hemingway's house. remember, you can watch witness every month on the bbc news channel or you can catch up on all out films

along with more than 1000 radio programmes in our online archive. just go to bbc.co.uk/witness. in the late 19705, thousands of young men and women were detained in argentina for their opposition to military rule. among those who went missing was ana maria barvalle. her mother spoke to witness. archive: they are called the mothers of the plaza de mayo, the square in the centre of buenos aires where they hold the same sad demonstration every week. they've all had at least one relative who's disappeared. merta, in the offices of the mothers of the disappeared. and finally, in june 1997, an unmanned supply vessel crashed into the mir space station. the station quickly began to leak air and the astronauts on board desperately tried to seal it.

michael foale was one of them. he spoke to witness about surviving a crash in space. mir was a space station built by the russians. the impression you got when you opened up the hatch and went into mir for the first time were two fold. one was the smell. it was a smell, a bit like an oily garage. maybe a little bit of must, because we did have mould on the mir. and then the other impression is clutter. as you go through, it's basically like going into the oesophagus of someone's throat. after about six weeks of being on the station, i'd been doing my experiments, i'm very happy, i get up on june 25th. vasily tsibliev, the commander and alexander lazutkin, the flight engineer had been using radio control equipment to fly a cargo ship called progress that weighs about seven tonnes into the mir station using a tv, looking at the station.

as i look at vasily‘s tv screen, i can see the orientation is all wrong for a proper docking to take place. and sasha, the flight engineer, says to me... and he means, the soyuz spacecraft which was joined on to the end of the station, which was at that point our lifeboat. but i understood because of the emergency in which he said it, that he meant go there to save your life. and as i float through, i feel the whole space station shudder and move around me. i'm pretty sure this may be my last breath, because i'm looking at the thin, three millimetre thick aluminium walls, just waiting for them to part. the klaxons go off when there is a pressure leak. then i felt my ears popping,

which meant in this case, the air was leaving the space station and there was a whistling sound coming from the spektr module. in 23 minutes, if we did nothing, we would start to go unconscious. sasha comes to me and doesn't say a word. he just ferverishly starts trying to remove cables leading into the spekre module. sasha looked around for a large hatch that could be put in place. and we just put it on and as it went on, it sucked in. because the station had been hit by the progress, we were now tumbling and rolling. at that point the soyuz had no electric power and the batteries were giving out, there wasn't a fan running, none of the carbon dioxide removal was working, no oxygen regeneration and no communications with moscow, or anybody else. it was a totally dead station. this is not something you see in the movies where it gets solved

instantly by some brainy chap. it probably took about six hours. we used the soyuz spacecraft and just fired the jets to stop the space station tumbling and rolling. then wonderfully, we came into sunlight after this and all of sudden the fans started to come on and the lights came on. and i said, "vasily, we've done it." however, for the next month, the station was inoperable in any normal sense. it could just sustain our lives and nothing else. when finally the shuttle came in october, i was really, really quite happy to see them. and as we backed away from the mir station, i looked at it and thought, i don't really mind if i don't ever see that again. michael foale, safely back on earth. that's it from witness this month.

next month, lucy hawking will be here at the british library to guide you through another five moments in history. but for now, from me, rebecca jones and the rest of the witness team, thanks for watching and goodbye. hello. not a bad sunday ahead for many of us. not a bad sunday ahead for many of us. there's quite a bit of sunshine out there, although for some there will be some rain. where we do have the ring, there will be brighter weather tomorrow. where we have the warmth, probably even warmer than

yesterday. this is a recent photograph taken from north yorkshire. plenty of sunshine around. this was taken in argyll & bute earlier, stuck underneath a weather front. you can bute earlier, stuck underneath a weatherfront. you can see bute earlier, stuck underneath a weather front. you can see the cloud and rain across scotland and northern ireland. and very different complexion to the weather. further south, the low cloud and mist is starting to erode away. patchy fairweather cloud around to the south. some areas could have strong sunshine all day. in some areas it will be cloudy and cool as a result of the weather front. very different to yesterday. to the south, we have picked up some moist air of again. more humid hour will allow temperatures to get a little higher. there could be the odd drizzly shower in western areas. further east, we could have one or two sharp downpours later on this afternoon. we're talking about an isolated heavy downpour, or even a thunderstorm. it's a small

possibility. do expect to get a full—day's play at the test match in lord's. similarly so for the anniversary games in london, if you are lucky enough to be heading off to watch that. but with strong sunshine, do take some protection. any showers that form will rumble on into the evening. then we could start to see showers and thunderstorms from france drifting across. i weather front in the north is on the move, too. that allows fresher air behind it. a mild night for most of us and still pretty uncomfortable with high humidity across southern and eastern areas. after tonight, we should see that kicked out of the way. this weather front here, fresh errors meandering behind. the potentialfor thunderstorms still around in eastern areas. a day of change with heat around in the south and east. but warm in the sunshine elsewhere. we got cloud waiting in the wings to come in for tuesday. that's the

progress of the atlantic by fronts coming in. we pushed that high humidity ever way. things freshen up and it won't be a wash—out, but it will be a little bit more tricky trying to forecast for wimbledon. plenty of showers around in the forecast. welcome to bbc news. the headlines: large amounts of drugs — and thousands of mobile phones — were found in prisons last year — the ministry ofjustics says it's unacceptable. the parents of charlie gard deliver a petition to doctors at great ormond hospital in london, to allow the terminally ill baby to travel for experimental treatment. sir vince cable — tipped to be the next leader of the liberal democrats — says he believes brexit may never happen. a business tycoon submits plans to build a third runway at heathrow — which he says would be 5—billion pounds cheaper than the current scheme. and in half an hour here on bbc news, dateline london takes a look at the g20 summit in hamburg, and asks what the world leaders might be able to take from it.