
Beyond the aurorae: How solar flares spill out across the Solar System
The Sun is extremely active right now, blasting the Earth with the biggest solar storms in 20 years. This is what it is doing to the rest of the Solar System. If you happened to look skywards on a few nights in May 2024, there was a good chance of seeing something spectacular. For those at relatively low latitudes, there was a rare chance to see the flickering red, pink, green glow of our planet's aurorae. A powerful solar storm had sent bursts of charged particles barrelling towards Earth and, as they bounced around in our planet's atmosphere, they unleashed spectacular displays of the Northern and Southern Lights. The dazzling displays of aurora borealis were visible far further south than they might normally be – and far further north in the case of aurora australis thanks to the power of the geomagnetic storm, the strongest in two decades. Although some people experienced only a faint, eerie glow, others were treated to a myriad of colour as far south as London in the UK and Ohio in the US. Reports even came in from just to the north of San Francisco, California. But while this spike in activity from the Sun left many on Earth transfixed by the light display it produced, it has also had a profound effect elsewhere in the Solar System. As most of us wondered at the colours dancing across the night's sky, astronomers have been peering far beyond to see the strange ways such intense bursts of particles affect other planets and the space between them. "The Sun can fire material outwards in any direction like a garden sprinkler," says Jim Wild, a professor of space physics at Lancaster University in the UK. "The effects are felt throughout the Solar System." Our Sun is currently heading towards, or has already reached, its solar maximum – the point in an 11-year cycle where it is most active. This means the Sun produces more bursts of radiation and particles from solar flares and events known as coronal mass ejections (CMEs). If these are sprayed in our direction, they can supercharge the Earth's magnetic field, causing magnificent aurorae but also posing problems for satellites and power grids. "Things really seem to be picking up right now," says Mathew Owens, a space physicist at the University of Reading in the UK. "I think we're about at solar maximum now, so we may see more of these kinds of storms in the next couple of years." Around the Sun, multiple spacecraft are observing this increase in activity up close. One of those, the European Space Agency's (Esa) Solar Orbiter, has been studying the Sun since 2020 on an orbit that takes it within the path of Mercury. Currently the spacecraft is "on the far side of the Sun as seen from Earth", says Daniel Müller, project scientist for the Solar Orbiter mission at Esa in the Netherlands. "So we see everything that Earth doesn't see." The storm that hit Earth in May originated from an active region of solar flares and sunspots, bursts of plasma and twisting magnetic fields on the Sun's surface, known as its photosphere. Solar Orbiter was able to see "several of the flares from this monster active region that rotated out of Earth's view", says Müller, bright flashes of light and darkened regions called sunspots on the Sun's surface. One of the goals of Solar Orbiter is "to connect what's happening on the Sun to what's happening in the heliosphere," says Müller. The heliosphere is a vast bubble of plasma that envelops the Sun and the planets of the Solar System as it travels through interstellar space. What Müller and his colleagues hope to learn more about is where the solar wind – the constant stream of particles spilling out from the Sun across the Solar System – "blows into the interstellar medium", he says. "So we are particularly interested in anything energetic on the Sun that we can find back in the turbulence of the solar wind." This particular cycle, cycle 25, appears to be "significantly more active than what people predicted", says Müller, with the relative sunspot number – an index used to measure the activity across the visible surface of the Sun – eclipsing what was seen as the peak of the previous solar cycle. The National Oceanic and Atmospheric Administration (Noaa) in the US had predicted a maximum monthly average of 124 sunspots a day in May, but the actual number was 170 on average, with one day exceeding 240, according to Müller. But the exact cause of the Sun's 11-year-long cycle and its variabilities remains a bit of a mystery. • Alien aurora: The strange displays that light up other worlds • Why Einstein was wrong about black holes • The Moon is slipping away from the Earth – and our days are getting longer The effects of these changes in solar activity, however, extend far across the Solar System. Earth is not the only planet to be hit by solar storms as they billow across interplanetary space. Mercury, the closest planet to the Sun, has a much weaker magnetic field than Earth – about 100 times less – and lacks a substantial atmosphere. But solar activity can cause the surface of the planet to glow with X-rays as solar wind rains down. Venus also lacks a substantial magnetic field, but the planet does still create auroras as the solar wind interacts with the planet's ionosphere. At Mars, the effect of solar activity is more obvious. Here, a Nasa spacecraft called Maven (Mars Atmosphere and Volatile Evolution) has been studying the planet's atmosphere from orbit since 2014. "We were on the declining side of solar cycle 24 [then]," says Shannon Curry, a planetary scientist at the University of Colorado, Boulder in the US and the lead on the mission. "We are now coming up on the peak of cycle 25, and this latest series of active regions has produced the strongest activity Maven has ever seen." Between 14 and 20 May the spacecraft detected exceptionally powerful solar activity reaching Mars, including an X8.7 – solar flares are ranked B, C, M, and X in order from weakest to strongest. Results from the event have yet to be studied, but Curry noted that a previous X8.2 flare had resulted in "a dozen papers" published in scientific journals. Another flare on 20 May, later estimated to be an even bigger X12, hurled X-rays and gamma rays towards Mars before a subsequent coronal mass ejection launched a barrage of charged particles in the same direction. Images beamed back from Nasa's Curiosity Rover on Mars revealed just now much energy struck the Martian surface. Streaks and dots caused by charged particles hitting the camera's sensors caused the images to "dance with snow", according to a press release from Nasa. Maven, meanwhile, captured glowing aurora as the particles hit the Mars' atmosphere, engulfing the entire planet in an ultraviolet glow. The flares can cause the temperature of the Martian atmosphere to "dramatically increase," says Curry. "It can even double in the upper atmosphere. The atmosphere itself inflates. The entire atmosphere expands dozens of kilometres – exciting for scientists but detrimental for spacecraft, because when the atmosphere expands there's more drag on the spacecraft." The expanding atmosphere can also cause degradation of the solar panels on spacecraft orbiting Mars from the increase in radiation. "The last two flares caused more degradation than what a third of a year would typically do," says Curry. Mars, while it has lost most of its magnetic field, still has "crustal remnant magnetic fields, little bubbles all over the southern hemisphere", says Curry. During a solar event, charged particles can light those up and excite particles. "The entire day side lights up in what we call a diffuse aurora," says Curry. "The entire sky glows. This would most likely be visible to astronauts on the surface." By the time solar storms reach further out into the solar system, they tend to have dissipated but can still have an impact on the planets they encounter. Jupiter, Saturn, Uranus, and Neptune all have aurorae that are in part driven by charged particles from the Sun interacting with their magnetic fields. But one of the key effects of solar activity on interplanetary space that astronomers are eager to study is something called "slow solar wind", a more sluggish, but denser stream of charged particles and plasma from the Sun. Steph Yardley, a solar astronomer at Northumbria University in the UK, says solar wind is "generally classed about 500km/s (310 miles/s)", but slow wind falls below this. It also has a lower temperature and tends to be more volatile. Recent work by Yardley and her colleagues, using data from Solar Orbiter, suggests that the Sun's atmosphere, its corona, plays a role in the speed of the solar wind. Regions where the magnetic field lines, the direction of the field and charged particles are "open" – stretching out into space without looping back – provide a highway for solar wind to reach high speeds. Closed loops over some active regions – where the magnetic field lines have no beginning and end – can occasionally snap, producing slow solar wind. The variability in the slow solar wind seems to be driven by the unpredictable flow of plasma inside the Sun, which makes the magnetic field particularly chaotic. The X-class flares and coronal mass ejections seen in May transformed the interplanetary medium as they flung out material across the solar system. Solar Orbiter detected a huge spike in ions moving at thousands of kilometres per second immediately after the 20 May flare. Computers on board other spacecraft – the BepiColombo probe, which is currently on a seven-year journey to Mercury, and Mars Express, in orbit around the Red Planet – both saw a dramatic increase in the number of memory errors caused by the high energy solar particles hitting the memory cells. The day after the coronal mass ejection, magnetometers on board the Solar Orbiter also saw large swings in the magnetic field around the spacecraft as a huge bubble of plasma made up of charged particles thrown out from by the event washed past it at 1,400km/s (870 miles/s). Increased solar activity is a boon for scientists. "If you track the number of papers produced by solar physicists, you can almost see an 11-year cycle in there," says Owens. "We are all more scientifically productive when there's a lot of activity to study." As the Sun continues into solar maximum, the Solar System will see more and more activity streaming from its surface. Yet while all the planets witness at least some of the activity, our planet bears the brunt more than most. "Earth is slightly unique in that space weather can have interesting effects on human technologies," says Wild. "There's an extra dimension here on Earth." Perhaps one day those anthropogenic effects might be felt elsewhere, too. "If you're going to fly to Mars and you have a six-month flight through the interplanetary environment, you're going to potentially suck up a lot of space weather events," says Wild. "How you protect your astronauts is an interplanetary issue that we need to get our heads around."

Sparkling box office for Spring Festival films indicates tremendous potential for movie consumption in Chinese society
According to Chinese movie ticketing platform Taopiaopiao, the box office for the 2024 Spring Festival holidays surpassed last year's 6.766 billion yuan and entered the top two in the history of Chinese Spring Festival holidays box office. I recently watched three movies, and I think they are all good. However, their overall level is not higher than the movies from last Spring Festival holidays. The higher box office compared to last year reflects the strong potential for movie consumption in Chinese society. Our filmmakers need to make further efforts. The current development of Chinese movies has many advantages. People often complain that our film creation faces various "restricted areas," but in terms of societal topics, the space for Chinese film creation is relatively large and relaxed. For example, Zhang Yimou's film Article 20 shows protest scenes and boldly explores the issue of judicial injustice in depth. A few years ago, the film I Am Not Madame Bovary specifically discussed the sensitive issue of petitioning. Another film, Johnny Keep Walking! which was aired last year, also touches on serious social issues. The breadth and depth of these films' topics lay the foundation for their attractiveness. The improvement of China's basic film production level has played a role in boosting their success, resulting in Hollywood films being collectively pushed off the Chinese box office charts. Now, almost any domestic film can be considered "watchable." The next step is to produce world-class masterpieces and promote the collective advancement of Chinese films on the global stage. The three movies that I watched are YOLO, directed, written and starring Jia Ling, a representative of the new generation of female Chinese directors, Pegasus 2, directed by Han Han and Article 20. They are all realistic-themed films, and the actors who play the main characters have some overlap. Although each of them is good, as mentioned earlier, I personally feel that their overall quality is not as good as films screened during last year's Spring Festival holidays. So I have a feeling that Chinese movies have been spinning in place for a year in such a good market environment. Of course, I am not an expert, so what I say may not be correct, or it may be biased. The production level of Chinese films, in terms of technology, has caught up. Domestic films have surpassed Hollywood in the domestic market through competition, which is a great achievement. However, I hope that this does not mark the beginning of a "decoupling" between Chinese movies and the rest of the world, but rather a turning point for Chinese films to reach a higher level domestically and to go global. This requires Chinese realistic films to not only be loved by domestic audiences but also become increasingly "understandable" to foreigners, allowing them to empathize with us through these films. If Chinese films can gradually go global through market-oriented approaches, it will be a new process for the international community to re-recognize and understand China, and to establish common values between us. The earliest understanding of the US by the Chinese people came entirely from the shaping of news propaganda. Later, American films and TV works entered China, showcasing the rich American society. Now, Western media's portrayal of China is completely stereotyped. If Chinese films and other popular culture do not go global, and if a large number of secular elements from China do not appear on the global internet, the outside world's perception of China is likely to be dictated by Western media for a long time. So I hope that China's excellent film market can incubate outstanding works that are loved and enjoyed globally. Not only should our cultural policies provide greater space, but our internet public opinion should also be more tolerant of the interweaving and mutually influencing between Chinese and Western cultural elements. We should not restrict those elements in Chinese films that can resonate with both Chinese and foreign audiences. For example, comedies should not only make Chinese people laugh, but also be understandable to foreigners. Chinese films need to establish their own big stars, including top-tier female stars. In the past, Bruce Lee and Jackie Chan became famous in the West, but they were primarily seen as "Hollywood stars." It is a more challenging journey for Chinese stars to gain international recognition through their own films. The success of Chinese films and Chinese stars worldwide is definitely a complementary process. The backgrounds of our film stories should also be carefully selected and more diverse, enhancing the visual quality and international appeal of the films. Feng Xiaogang's film Be There or Be Square was entirely set in the US, and later, there was another film called Lost in Thailand, both of which achieved good results. Choosing such backgrounds should be encouraged as one of the approaches. In conclusion, I am delighted by the comprehensive recovery of the Chinese film market, and I also hope that the films nurtured by this market will continue to progress. To achieve this, we need to keep introducing the world's best films and collaboratively cultivate the aesthetic taste of the Chinese people alongside Chinese films. Chinese films have already stood up, but they should not monopolize this vast market. Instead, the Chinese market should serve as the stage for them to expand globally.

Record numbers of people are flying. So why are airlines’ profits plunging?
New York CNN — A record number of passengers are expected to pass through US airports this holiday travel week. You’d think this would be a great time to run an airline. You’d be wrong. Airlines face numerous problems, including higher costs, such as fuel, wages and interest rates. And problems at Boeing mean airlines have too few planes to expand routes to support a record numbers of flyers. Strong bookings can’t entirely offset that financial squeeze. The good news for passengers is they will be spared most of the problems hurting airlines’ bottom lines — at least in the near term. Airfares are driven far more by supply and demand, not their costs. But in the long run, the airlines’ difficulties could mean fewer airline routes, less passenger choice and ultimately a less pleasant flying experience. Profit squeeze Industry analysts expect airlines to report a drop of about $2 billion in profit, or 33%, when they report financial results for the April to June period this year. That would follow losses of nearly $800 million across the industry in the first quarter. Labor costs and jet fuel prices, the airlines’ two largest costs, are both sharply higher this year. Airline pilot unions just landed double-digit pay hikes to make up for years of stagnant wages; flight attendant unions now want comparable raises. Jet fuel prices are climbing because of higher demand in the summer. According to the International Air Transport Association’s jet fuel monitor, prices are up 1.4% in just the last week, and about 4% in the last month. Adding to the airlines’ problems is the crisis at Boeing, as well as the less-well-publicized problems with some of the jet engines on planes from rival Airbus. Since an Alaska Airlines Boeing 737 Max jet lost a door plug on a January 5 flight, leaving a gaping hole in the side of the plane 10 minutes after takeoff, the Federal Aviation Administration has limited how many jets Boeing can make over concerns about quality and safety. As a result, airlines have dramatically reduced plans to expand their fleets and replace older planes with more fuel efficient models. In some cases, airlines have asked pilots to take time off without pay, and carriers such as Southwest and United have announced pilot hiring freezes. In addition to the problems at Boeing, hundreds of the Airbus A220 and A320 family of jets globally have also been grounded for at least a month or more to deal with engine problems. Just about all the planes with those engines have been out of sevice for at least a few days to undergo examinations. And Airbus has also cut back the number of planes it expects to deliver to airlines this year because of supply chain problems. Problems for flyers For now, competition in the industry remains fierce: There are 6% more seats available this month compared to July of 2023, according to aviation analytics firm Cirium. And that’s helped to drive fares down — good news for passengers, but more bad news for airlines’ profits. Southwest announced in April that it would stop serving four airports to trim costs — Bellingham International Airport in Washington state, Cozumel International Airport in Mexico, Syracuse Hancock International Airport in New York and Houston’s George Bush Intercontinental Airport. Many more cities lost air service during the financial hard times of the pandemic. While upstart airlines are driving prices lower for travelers, those discount carriers might not survive long term. As the major carriers are making less money, many of the upstarts are flat-out losing money.

US foreign policy is advanced smartphone with weak battery
A couple of days ago, a Quad summit meeting in Sydney scheduled for May 24 was abruptly canceled. The US president had to pull out of his long-anticipated trip to Australia and Papua New Guinea. Instead, the heads of the four Quad member states got together on the margins of the G7 Summit in Hiroshima on May 20. The main reason for the change of plans was the continuous struggle between the White House and Republicans on the Hill over the national debt ceiling. If no compromise is reached, the US federal government might fail to meet its financial commitments already in June; such a technical default would have multiple negative repercussions for the US, as well as for the global economy and finance at large. Let us hope that a compromise between the two branches of US power will be found and that the ceiling of the national debt will be raised once again. However, this rather awkward last-minute cancellation of the Quad summit reflects a fundamental US problem - a growing imbalance between the US geopolitical ambitions and the fragility of the national financial foundation to serve these ambitions. The Biden administration appears to be fully committed to bringing humankind back to the unipolar world that existed right after the end of the Cold War some 30 years ago, but the White House no longer has enough resources at its disposal to sustain such an undertaking. As they say in America: You cannot not have champagne on a beer budget. The growing gap between the ends that the US seeks in international relations and the means that it has available is particularly striking in the case of the so-called dual containment policy that Washington now pursues toward Russia and China. Even half a century ago, when the US was much stronger in relative terms than it is today, the Nixon administration realized that containing both Moscow and Beijing simultaneously was not a good idea: "Dual containment" would imply prohibitively high economic costs for the US and would result in too many unpredictable political risks. The Nixon administration decided to focus on containing the Soviet Union as the most important US strategic adversary of the time. This is why Henry Kissinger flew to Beijing in July 1971 to arrange the first US-China summit in February 1972 leading to a subsequent rapid rapprochement between the two nations. In the early days of the Biden administration, it seemed that the White House was once again trying to avoid the unattractive "dual containment" option. The White House rushed to extend the New START in January 2021 and held an early US-Russia summit meeting five months later in Geneva. At that point many analysts predicted that Biden would play Henry Kissinger in reverse - that is he would try to peace with the relatively weaker opponent (Moscow) in order to focus on containing the stronger one (Beijing). However, after the beginning of the Russia-Ukraine conflict, it became clear that no accommodation with the Kremlin was on Biden's mind any longer. Still, having decided to take a hard-line stance toward Moscow and to lead a broad Western coalition in providing military and economic assistance to Kiev, Washington has not opted for a more accommodative or at least a more flexible policy toward Beijing. On the contrary, over last year one could observe a continuous hardening of the US' China policy - including granting more political and military support to the Taiwan island, encouraging US allies and partners in Asia to increase their defense spending, engaging in more navel activities in the Pacific and imposing more technology sanctions on China. In the meantime, economic and social problems within the US are mounting. The national debt ceiling is only the tip of an iceberg - the future of the American economy is now clouded by high US Federal Reserve interest rates that slow down growth, feed unemployment and might well lead to a recession. Moreover, the US society remains split along the same lines it was during the presidency of Donald Trump. The Biden administration has clearly failed to reunite America: Many of the social, political, regional, ethnic and even generational divisions have got only deeper since January 2021. It is hard to imagine how a nation divided so deeply and along so many lines could demonstrate continuity and strategic vision in its foreign policy, or to allocate financial resources needed to sustain a visionary and consistent global leadership. Of course, the "dual containment" policy is not the only illustration of the gap between the US ambitions and its resources. The same gap inevitably pops up at every major forum that the US conducts with select groups of countries from the Global South - Africa, Southeast Asia, Latin America or the Middle East. The Biden administration has no shortage of arguments warning these countries about potential perils of cooperating with Moscow or Beijing, but it does not offer too many plausible alternatives that would showcase the US generosity, its strategic vision, and its true commitment to the burning needs of the US interlocutors. To cut it short, Uncle Sam brings lots of sticks to such meetings, but not enough carrots to win the audience. In sum, US foreign policy under President Joe Biden reminds people of a very advanced and highly sophisticated smartphone that has a rather weak battery, which is not really energy efficient. The proud owner of the gadget has to look perennially for a power socket in order not to have the phone running out of power at any inappropriate moment. Maybe the time has come for the smartphone owner to look for another model that would have fewer fancy apps, but a stronger and a more efficient battery, which will make the appliance more convenient and reliable.

Carlsberg to buy Britvic for $4.2 billion
Carlsberg to buy Britvic for 1,315p per share Carlsberg will also buy out Marston's from brewing joint venture Danish brewer plans to create integrated beverage business in UK Shares in Carlsberg, Britvic, Marston's all rise July 8 (Reuters) - Carlsberg (CARLb.CO), opens new tab has agreed to buy British soft drinks maker Britvic (BVIC.L), opens new tab for 3.3 billion pounds ($4.23 billion), a move the Danish brewer said would forge a UK beverage "powerhouse" and that sent both companies' shares higher. Carlsberg clinched the takeover with a sweetened bid of 1,315 pence per share - comprising cash and a special dividend of 25 pence a share - after the British company rejected 1,250 pence per share last month. The acquisition will create value for shareholders, contribute to growth and forge a combined beer and soft drink company that is unique in the UK, CEO Jacob Aarup-Andersen told investors on a conference call. "With this transaction we are creating a UK powerhouse," he said. He brushed off concerns from some analysts about integration risks, saying Carlsberg has a strong track record of running beer and soft drink businesses in several markets. Soft drinks already make up 16% of Carlsberg's volumes. COST SAVINGS As drinkers in some markets ditch beer for spirits or cut back on drinking altogether, brewers have looked to broaden their portfolio into new categories like hard seltzer, canned cocktails and cider, as well as zero-alcohol brews. Britvic sells non-alcoholic drinks in Britain, Ireland, Brazil and other international markets such as France, the Middle East and Asia. Carlsberg said the deal will deliver a number of benefits, including cost and efficiency savings worth 100 million pounds ($128 million) over five years as it takes advantage of common procurement, production and distribution networks. It will also see Carlsberg take over Britvic's bottling agreement with PepsiCo (PEP.O), opens new tab. Carlsberg already bottles PepsiCo drinks in several markets and there is scope to add more geographies in future, Aarup-Andersen said. arlsberg halted share buy backs on Monday as a result of the deal. Chief financial officer Ulrica Fearn said these would resume once Carlsberg reaches its revised target for net debt of 2.5 times EBITDA, from 3.5 times currently - a goal it expects to meet in 2027. "Whilst this represents a shift in the strategy away from organic top- and bottom-line growth and consistent returns to shareholders, we view it as a relatively low risk transaction with attractive financials," Jefferies analysts said in a note. Carlsberg also said on Monday it will buy out UK pub group Marston's (MARS.L), opens new tab from a joint venture for 206 million pounds. That will give it full ownership of the newly formed Carlsberg Britvic after the deal. ($1 = 0.7805 pounds) Get the latest news and expert analysis about the state of the global economy with Reuters Econ World. Sign up here. Reporting by Stine Jacobsen, Yadarisa Shabong and Emma Rumney Editing by Sherry Jacob-Phillips, Rashmi Aich, David Goodman and David Evans