this is bbc world news, the headlines: in his inauguration speech at a ceremony in the capital brasilia the new president of brazil, jair bolsonaro, has promised to free the country from socialism. this is the first image of one of the most distant objects in the solar system — an icy mass called ultima thule. the indistinct image was sent by a nasa probe, some 6 billion kilometers away. rescue workers in russia have found an baby boy alive under the rubble of a building that collapsed on monday. one tuesday there was a second explosion in the same town — three died when a minibus burst into flames. a man has been arrested in germany after a car was driven into a group of pedestrians. at least four people were hurt. it's thought it was a xenophobic attack. now on bbc news, one of the highlights of the year from our documentary series our world. every week hundreds of syrians given asylum in germany, are returning home. our world's nawal al—maghafi,

joined them earlier this year to discover why they're giving up the safety of europe to return to their war—torn country. syrians on the move again. under the cover of darkness and carrying their entire belongings. they are hoping to make a new life. but these people aren't entering europe, they're escaping it. many here smuggling themselves illegally back along the same routes down which they had arrived. everyone here is terrified. because the greek police could come and pick them up at any time. but they are so close. after years of living as refugees in europe, most people here said there are grateful for the shelter. but ultimately, their european dream was a failure.

every week, hundreds of refugees are sneaking out of europe. i am joining them on their dangerous journey to try and understand why anyone would give up on safety and security to return to war—torn syria. this is a baden—wurttemberg in southern germany. a far cry from the war in syria. a largely rural state, it is now home to one of the biggest

refugee populations in the country. in the past few years around 150,000 people have sought asylum here. i am here to meet a small but growing number of refugees who have chosen to return to a life of danger over safety in europe. 27—year—old za kariya arrived in germany with high hopes. zakariya says he was ready to restart his career

as a metalworker. but two years on, and things haven't worked out the way zakariya hoped. he struggles with the language and is yet to find a job. for the past seven months zakariya has been sharing a house with more than 20 other refugees. together with four others, zakariya lives eats and sleeps here in this one room. germany provides free

housing to all refugees. but in order to afford better accommodation, zakariya would need to find work. so this is the job centre... these papers basically some up zakariya's life here in the last two years. he has applied forjobs, he has applied to learn german and all he has been able to do is wait, because he has had no response. with the lack of prospects here, za kariya's thoughts often turn to home. after two years in germany, zakariya is regretting his decision to come to europe.

a year or two after their arrival, and many syrians here tell you they are finding it very hard to adjust to their new life. zakariya has decided to leave germany and return home. he is definitely not alone. but without official statistics, it is impossible to calculate the exact number of syrians giving up on europe. although estimates suggest hundreds every week are now leaving. zakariya, like most syrian refugees wanting to leave europe, faces a difficult and dangerous journey. and it will involve smuggling himself overland from greece into turkey. this is the northern greek city of thessaloniki,

the next step on the journey. a major tourist destination it is also a major crossroad on europe's migration routes. the path where those entering the eu from the east and those leaving it collides. at the central bus station, dozens of syrians are preparing to continue theirjourney to turkey and ultimately to syria. zakariya has arrived and says there is no turning back. it is notjust single men like zakariya leaving europe. it is families with young children, some of them born in germany. i wondered why they had decided to take a child to a war zone.

mohammed has just arrived from germany with his pregnant wife and seven children. zakariya and the other syrians now face a five—hourjourney up to the border. it's the last stop before they cross on foot out of europe and into turkey. i'm really surprised to see just how many syrians are making this journey. this bus is completely packed with people and families, and i have spoken to some of them who are too afraid to speak on camera. they are going back for many reasons, some of them because they cannot bring theirfamilies over, some of them who are really disappointed with europe and are so afraid of raising their children in a foreign land. spending time with the families on this coach, i begin to understand that not everyone was unhappy in europe.

some just wanted to be reunited with theirfamilies, no matter what the risk. under the cover of darkness, the family is prepared to illegally cross into turkey on foot. many of these people here are smuggling themselves back along the same route that they arrived in europe. once again, they have packed up their entire belongings into a few bags, hoping yet again for a better life. everyone here is terrified because the greek police could come and pick them up at any time. but they are so close. all they have to do is cross this river and they will get to turkey. with so many people taking this hidden route home, syrians have started to call it ‘europe‘s back door‘. as they make their exit, zakariya has one last message to his former hosts. a few days later as dawn approaches, i arrive at the turkish side of the border.

i am here to witness the moment when more syrians will leave europe and walk into turkey. i think i can see in the distance one of the families that have just been smuggled across the river from greece into turkey. after many days of travelling, these syrians have finally reached their goal — escape from europe. wading through the cold water, many here will be relieved to have made it across the river. during the winter, some refugees were swept away in the high waters. i see a woman leading the refugees towards us. i am told she is a smuggler. tired and hungry, these syrians have been on the move for at least 48

hours to reach this point. 0ur conversation is cut short. facing arrest for being in a military zone, we are told to move quickly. all 20 people are quickly bundled into this one car. squeezed together, it is impossible to move. my cameraman and i manage to get in, too. guys! as we drive deeper into turkey, we are told many refugees sell their german travel documents and ids to the smugglers to fund their trip out of europe. the smugglers then use the documents

to take other people from turkey into europe illegally. the two—way traffic on this route has become a lucrative business. the smuggler doesn't want to reveal her identity. it is clear to me that the only real winners in this refugee crisis

are the people smugglers. no matter what the direction of travel or length ofjourney, they stand to profit every step of the way. after a long road journey, we finally reach istanbul, where the refugees are dropped off. at 2a years old, nada has been smuggling over a year now. she says she has no other options. despite her work, nada's dream is to go herself and settle in europe. on this extraordinary journey from europe, i have met so many people along the way, each with their own unique story as to why they have turned their back on europe. but one thing they all have in common is their desperate struggle to find a home where they can be happy like they once were in syria. hello there, the first few days of 2019 starting on a sunny but cold

note, with an area of high pressure in charge of our weather, but spare a thought for those further eastwards, where we have a cold plunge of arctic air working across eastern europe, bringing snow and blizzard conditions. that cold air will filter to south—east europe. for now, high pressure keeping that fun away from the uk and we have got a cold and frosty start on wednesday. most areas will have some sunshine. but this cloud coming down the north sea could produce some showers across lincolnshire and norfolk. but it should be largely dry. temperatures between three and seven celsius. heading into wednesday night, we are going to keep the clear conditions across most parts and with the winds staying light it is the recipe for a sharp frost. in the countryside it could be down to minus eight degrees. in towns and cities minus

fourin degrees. in towns and cities minus four in aberdeen and newcastle. 0ur weather isn't going to change much over the next few days. the reason is the jet stream is taking this large pattern and when we get these big waves in the jet stream, they don't move very far and we get the weather stuck near the earth's surface and the high pressure we have won't shift around any time $0011. have won't shift around any time soon. so thursday, another cold and frosty start, another day that will be largely dry with sunshine. but we may see a few showers done the north sea coasts into the coastal areas of kent. 0therwise chilly, temperatures three to seven degrees celsius. high pressure still there as we look at thursday. but by this stage we have low pressure and cold air working into south eastern europe and we may see some snow down to low levels in greece. friday brings more of the

same weather. although some changes. most of us dry, sunny, cold and frosty. an increased threat of fog in the north—west. as we start to get more moisture in here, also cloudier. that is where the temperatures will be lifting, nine degrees in stornoway and the weekend the same weather pattern will continue. for most dry and some frost around and some sunshine. but a tendency to see more cloud through the course of the weekend and also a greater threat of some mist and fog patches that could be slow to clear. 0n patches that could be slow to clear. on sunday, there is some uncertainty, but some models push a band of rain into the west. uncertainty for most parts sunday will be another dry day. but turning cloudy and temperatures closer to normal. next week a battle zone between an atlantic influence and

low pressures and the area of high pressure that we have been used to. now we may see the high pressure affecting southern parts, where the weather will be dry, but in the north and west we may see some rain at times, but this some uncertainty in the detail. temperatures close to normalfor in the detail. temperatures close to normal for the time of year. bye for 110w. this is bbc news. the headlines at 10pm: a man arrested after three people were stabbed at manchester's victoria station on new year's eve has been detained under the mental health act. my thoughts are very much with the couple who are still being treated in hospitalfor their very serious injuries and of course with the brave british transport police officer that was stabbed during the attack. signals from the nasa space probe new horizons confirm it has successfully flown past icy mass ultima thule, the most distant object ever explored in the solar system. jair bolsonaro, a far—right politician vowing a crackdown on crime and corruption, is sworn in as brazil's new president. rescue workers in russia pull

an 11—month—old baby boy alive from the rubble of a block of flats hit by an explosion. doctors say he is in a critical condition. coming up in our sports bulletin, tottenham beat cardiff 3—0