Norway manager Stale Solbakken offers an update on the injury to Arsenal midfielder Martin Odegaard.

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Ukraine has passed legislation moving its official Christmas holiday to December 25, further distancing itself from the traditions of the Putin-aligned Russian Orthodox Church, which celebrates the holiday on January 7.

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The United States moved closer to a playoff spot at the Under-20 World Cup with a 3-0 victory over Fiji in Group B

A group of amateur radio enthusiasts have set up a beacon in the UK that allows anyone to observe meteors as they burn through the Earth’s atmosphere. The UK Meteor Beacon project uses radio signals to identify meteorites as they pass through a 400 km-wide section of sky over England and Wales. The data is then displayed on a live online feed, with meteors appearing as blue streaks that emit a ping followed by a trailing pitch. The system captures more than 100 meteors every hour, even during times of relatively low activity. For the upcoming Perseid meteor shower, which peaks on 12 August, the frequency could be in the region of thousands per hour as Earth passes through the tail of the Swift-Tuttle comet. Unlike optical astronomy, the use of radio signals mean that meteors can be observed in nearly any weather conditions at all hours of the day and night. It also means that the system can pick up smaller meteors that may not appear as ‘shooting stars’ to the naked eye. This method of observation could potentially lead to the discovery of new meteor showers, which could then be tracked to uncover previously unknown comets. The radio transmitter is based at the Sherwood Observatory near Mansfield in Nottinghamshire, however receivers can be placed anywhere in the country. “The transmitter is illuminating the sky above Mansfield with radio signals that can be reflected by meteors and their trails,” Brian Coleman, who designed the system’s hardware and has a receiver in his back garden, told The Independent. “Even outside the Perseids and other meteor showers we’re seeing them at a rate of two a minute – and we can observe them day and night no matter what the weather. Only thunderstorms and lightning can interfere with it.” It is the first meteor beacon system run by amateur radio and astronomy volunteers in the UK, and has already received funding from the Radio Society of Great Britain and the British Astronomical Association. It has also gained the attention of academic and citizen scientists keen on studying meteors. Setting up the beacon transmitter is only the first part of the project, with the four-person team now planning to design and deploy echo receivers that can be distributed throughout the country at distances of up to 1,200 km from the Sherwood Observatory. The receivers can be built for as little as £10, according to Mr Coleman, using plastic pipes and other materials found in DIY stores. His hope is that the low cost will encourage schools to set up their own receivers to develop STEM-related projects that will encourage students to explore radio engineering and astronomy. Observations of the meteors from different directions can also be used to calculate the location and trajectory of meteors, with the team currently trying to establish whether it is possible to triangulate the meteors by studying the horizontal lines and blue smudges that appear on the waterfall display. Such measurements are currently possible with military-grade pulse radar systems, but it has never been done before on this scale. If it is possible, then knowing the speed and direction of the meteors will allow them to calculate the landing spot of any meteors that make it through the Earth’s ionosphere without burning up completely. These samples can then be studied to offer a better understanding of the universe. “The ultimate ambition is to have a system like Blitzortung, which uses a network of ground-based detectors to track live lightning strikes around the planet,” Mr Coleman said. “If successful, we could observe meteors entering Earth’s atmosphere in real-time throughout the world – but there’s still a lot of work to do before we achieve that.” Read More Amateur astronomers make ‘major breakthrough’ in saving Earth from asteroids ‘It’s becoming like an airport’: How SpaceX normalised rocket launches Perseid meteor shower offers best chance to see a ‘shooting star’ in 2023 Watch live: Russian cosmonauts step out of ISS to perform spacewalk Earth hit by powerful ‘X-1’ solar flare, after fears of ‘cannibal’ blast

The internet and mobile phones may not have a “blanket negative effect” on wellbeing and mental health, researchers say. A large international study used data from two million people aged 15 to 89 in 168 countries, and found smaller associations than would be expected if the internet were causing widespread psychological harm. The researchers say that if the link between internet use and poor health were as universal and robust as many think they would have found it. We looked very hard for a ‘smoking gun’ linking technology and wellbeing and we didn’t find it Professor Andrew Przybylski, Oxford Internet Institute However, the study did not look at social media use, and although the data included some young people, the researchers did not analyse how long people spent online. Professor Andrew Przybylski, of the Oxford Internet Institute, and Assistant Professor Matti Vuorre, Tilburg University, and Research Associate, Oxford Internet Institute, carried out the research into home and mobile broadband use. Prof Przybylski said: “We looked very hard for a ‘smoking gun’ linking technology and wellbeing and we didn’t find it.” He added: “The popular idea that the internet and mobile phones have a blanket negative effect on wellbeing and mental health is not likely to be accurate. “It is indeed possible that there are smaller and more important things going on, but any sweeping claims about the negative impact of the internet globally should be treated with a very high level of scepticism.” Looking at the results by age group and gender did not reveal any specific patterns among internet users, including women and young girls. Instead, the study, which looked at data for the past two decades, found that for the average country, life satisfaction increased more for females over the period. Data from the United Kingdom was included in the study, but the researchers say there was nothing distinctive about the UK compared with other countries. Although the study included a lot of information, the researchers say technology companies need to provide more data, if there is to be conclusive evidence of the impacts of internet use. They explain: “Research on the effects of internet technologies is stalled because the data most urgently needed are collected and held behind closed doors by technology companies and online platforms. “It is crucial to study, in more detail and with more transparency from all stakeholders, data on individual adoption of and engagement with internet-based technologies. “These data exist and are continuously analysed by global technology firms for marketing and product improvement but unfortunately are not accessible for independent research.” For the study, published in the Clinical Psychological Science journal, the researchers looked at data on wellbeing and mental health against a country’s internet users and mobile broadband subscriptions and use, to see if internet adoption predicted psychological wellbeing. In the second study they used data on rates of anxiety, depression and self-harm from 2000-2019 in some 200 countries. Wellbeing was assessed using data from face-to-face and phone surveys by local interviewers, and mental health was assessed using statistical estimates of depressive disorders, anxiety disorders and self-harm in some 200 countries from 2000 to 2019. Read More Young people the biggest users of generative AI, Ofcom study shows Software firm Cloudsmith announces £8.8m investment UK and South Korea issue warning over North Korea-linked cyber attacks Data protection watchdog warns websites over cookie consent alerts Employee data leaked during British Library cyber attack Half of adults who chat online with strangers do not check age – poll

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