3 Chinese Astronauts Return to Earth After 6-Month Mission

Three Chinese astronauts landed in a northern desert on Sunday after six months working to complete construction of the Tiangong station, a symbol of the country’s ambitious space program, state TV reported.

A capsule carrying commander Chen Dong and astronauts Liu Yang and Cai Xuzhe touched down at a landing site in the Gobi Desert in northern China at approximately 8:10 p.m. (1210 GMT), China Central Television reported.

Prior to departure, they overlapped for almost five days with three colleagues who arrived Wednesday on the Shenzhou-15 mission for their own six-month stay, marking the first time China had six astronauts in space at the same time. The station’s third and final module docked with the station this month.

The astronauts were carried out of the capsule by medical workers about 40 minutes after touchdown. They were all smiles, and appeared to be in good condition, waving happily at workers at the landing site.

“I am very fortunate to have witnessed the completion of the basic structure of the Chinese space station after six busy and fulfilling months in space,” said Chen, who was the first to exit the capsule. “Like meteors, we returned to the embrace of the motherland.”

Liu, another of the astronauts, said that she was moved to see relatives and her fellow compatriots.

The three astronauts were part of the Shenzhou-14 mission, which launched in June. After their arrival at Tiangong, Chen, Liu and Cai oversaw five rendezvous and dockings with various spacecraft including one carrying the third of the station’s three modules.

They also performed three spacewalks, beamed down a live science lecture from the station, and conducted a range of experiments.

The Tiangong is part of official Chinese plans for a permanent human presence in orbit.

China built its own station after it was excluded from the International Space Station, largely due to U.S. objections over the Chinese space programs’ close ties to the People’s Liberation Army, the military wing of the ruling Communist Party.

With the arrival of the Shenzhou-15 mission, the station expanded to its maximum weight of 100 tons.

Without attached spacecraft, the Chinese station weighs about 66 tons — a fraction of the International Space Station, which launched its first module in 1998 and weighs around 465 tons.

With a lifespan of 10 to 15 years, Tiangong could one day be the only space station still up and running if the International Space Station retires by around the end of the decade as expected.

China in 2003 became the third government to send an astronaut into orbit on its own after the former Soviet Union and the United States.

China has also chalked up uncrewed mission successes: Its Yutu 2 rover was the first to explore the little-known far side of the moon. Its Chang’e 5 probe also returned lunar rocks to Earth in December 2020 for the first time since the 1970s, and another Chinese rover is searching for evidence of life on Mars.

Officials are reported to be considering an eventual crewed mission to the moon, although no timeline has been offered.

your ad here


Ukrainian Engineers Scramble to Keep Mobile Phones Working

With Ukraine scrambling to keep communication lines open during the war, an army of engineers from the country’s phone companies has mobilized to help the public and policymakers stay in touch during repeated Russian missile and drone strikes.

The engineers, who typically go unseen and unsung in peacetime, often work around the clock to maintain or restore phone service, sometimes braving minefields to do so. After Russian strikes took out the electricity that cellphone towers usually run on, they revved up generators to keep the towers on.

“I know our guys – my colleagues – are very exhausted, but they’re motivated by the fact that we are doing an important thing,” Yuriy Dugnist, an engineer with Ukrainian telecommunications company Kyivstar, said after crunching through 15 centimeters of fresh snow to reach a fenced-in mobile phone tower on the western fringe of Kyiv, the capital.

Dugrist and his coworkers offered a glimpse of their new daily routines, which involve using an app on their own phones to monitor which of the scores of phone towers in the capital area were receiving electricity, either during breaks from the controlled blackouts being used to conserve energy or from the generators that kick in to provide backup power.

One entry ominously read, in English, “Low Fuel.”

Stopping off at a service station before their rounds, the team members filled up eight 20-liter jerrycans with diesel fuel for a vast tank under a generator that relays power up a 50-meter cell tower in a suburban village that has had no electricity for days.

It’s one of many Ukrainian towns that have had intermittent power, or none at all, in the wake of multiple rounds of devastating Russian strikes in recent weeks targeting the country’s infrastructure – power plants in particular.

Kyivstar is the largest of Ukraine’s three main mobile phone companies, with some 26 million customers – or the equivalent of about two-thirds of the country’s population before Russia’s Feb. 24 invasion drove millions of people abroad, even if many have since returned.

The diesel generators were installed at the foot of the cell phone towers since long before the invasion, but they were rarely needed. Many Western countries have offered up similar generators and transformers to help Ukraine keep electricity running as well as possible after Russia’s blitz.

After emergency blackouts prompted by a round of Russian strikes on Nov. 23, Kyivstar deployed 15 teams of engineers simultaneously and called in “all our reserves” to troubleshoot the 2,500 mobile stations in their service area, Dugrist said.

He recalled rushing to the site of a destroyed cell tower when Russian forces pulled out of Irpin, a suburb northwest of Kyiv, earlier this year and getting there before Ukrainian minesweepers had arrived to give the all-clear signal.

The strain the war is putting on Ukraine’s mobile phone networks has reportedly driven up prices for satellite phone alternatives like Elon Musk’s Starlink system, which Ukraine’s military has used during the conflict, now in its 10th month.

After widespread infrastructure strikes last week, Ukrainian President Volodymyr Zelenskyy convened top officials to discuss the restoration work and supplies needed to safeguard the country’s energy and communication systems.

“Special attention is paid to the communication system,” he said, adding that no matter what the Russia has in mind, “we must maintain communication.”

your ad here


Musk’s Company Aims to Soon Test Brain Implant in People

Tech billionaire Elon Musk said his Neuralink company is seeking permission to test its brain implant in people soon.

In a “show and tell” presentation livestreamed Wednesday night, Musk said his team is in the process of asking U.S. regulators to allow them to test the device. He said he thinks the company should be able to put the implant in a human brain as part of a clinical trial in about six months, though that timeline is far from certain.

Musk’s Neuralink is one of many groups working on linking brains to computers, efforts aimed at helping treat brain disorders, overcoming brain injuries and other applications.

The field dates to the 1960s, said Rajesh Rao, co-director of the Center for Neurotechnology at the University of Washington. “But it really took off in the ’90s. And more recently we’ve seen lots of advances, especially in the area of communication brain computer interfaces.”

Rao, who watched Musk’s presentation online, said he doesn’t think Neuralink is ahead of the pack in terms of brain-computer interface achievements. “But … they are quite ahead in terms of the actual hardware in the devices,” he said.

The Neuralink device is about the size of a large coin and is designed to be implanted in the skull, with ultra-thin wires going directly into the brain. Musk said the first two applications in people would be restoring vision and helping people with little or no ability to operate their muscles rapidly use digital devices.

He said he also envisions that in someone with a broken neck, signals from the brain could be bridged to Neuralink devices in the spinal cord.

“We’re confident there are no physical limitations to enabling full body functionality,” said Musk, who recently took over Twitter and is the CEO of Tesla and SpaceX.

In experiments by other teams, implanted sensors have let paralyzed people use brain signals to operate computers and move robotic arms. In a 2018 study in the journal PLOS ONE, three participants with paralysis below the neck affecting all of their limbs used an experimental brain-computer interface being tested by the consortium BrainGate. The interface records neural activity from a small sensor in the brain to navigate things like email and apps.

A recent study in the journal Nature, by scientists at the Swiss research center NeuroRestore, identified a type of neuron activated by electrical stimulation of the spinal cord, allowing nine patients with chronic spinal cord injury to walk again.

Researchers have also been working on brain and machine interfaces for restoring vision. Rao said some companies have developed retinal implants, but Musk’s announcement suggested his team would use signals directly targeting the brain’s visual cortex, an approach that some academic groups are also pursuing, “with limited success.”

Neuralink did not immediately respond to an email to the press office. Dr. Jaimie Henderson, a neurosurgery professor at Stanford University who is an adviser for Neuralink, said one way Neuralink is different from some other devices is that it has the ability to reach into deeper layers of the brain. But he added: “There are lots of different systems that have lots of different advantages.”

your ad here


Arizona Aims to Become a Semiconductor Powerhouse

The United States is pushing to regain its position as a center for semiconductor manufacturing and research as part of a Biden administration plan to make the nation less reliant on supply chains in Asia. VOA’s Michelle Quinn reports from the Southwest state of Arizona on competition for billions of dollars in federal funding to bolster domestic chip manufacturing. Additional videographer: Levi Stallings

your ad here


Electric Vehicles, a Century Old, Gain Speed in Marketplace

The International Energy Agency says 13% of cars sold worldwide this year will be electric. Mike O’Sullivan reports from Los Angeles that consumer demand for electric vehicles is increasing as the industry overcomes technical hurdles.

your ad here


Twitter, Others Slip on Removing Hate Speech, EU Review Says

Twitter took longer to review hateful content and removed less of it in 2022 compared with the previous year, according to European Union data released Thursday.

The EU figures were published as part of an annual evaluation of online platforms’ compliance with the 27-nation bloc’s code of conduct on disinformation.

Twitter wasn’t alone; most other tech companies signed up to the voluntary code also scored worse. But the figures could foreshadow trouble for Twitter in complying with the EU’s tough new online rules after owner Elon Musk fired many of the platform’s 7,500 full-time workers and an untold number of contractors responsible for content moderation and other crucial tasks.

The EU report, carried out over six weeks in the spring, found Twitter assessed just over half of the notifications it received about illegal hate speech within 24 hours, down from 82% in 2021.

In comparison, the amount of flagged material Facebook reviewed within 24 hours fell to 64%, Instagram slipped to 56.9%, and YouTube dipped to 83.3%. TikTok came in at 92%, the only company to improve.

The amount of hate speech Twitter removed after it was flagged slipped to 45.4% from 49.8% the year before. TikTok’s removal rate fell by a quarter to 60%, while Facebook and Instagram saw only minor declines. Only YouTube’s takedown rate increased, surging to 90%.

“It’s worrying to see a downward trend in reviewing notifications related to illegal hate speech by social media platforms,” European Commission Vice President Vera Jourova tweeted. “Online hate speech is a scourge of a digital age and platforms need to live up to their commitments.”

Twitter didn’t respond to a request for comment. Emails to several staff on the company’s European communications team bounced back as undeliverable.

Musk’s $44 billion acquisition of Twitter last month fanned widespread concern that purveyors of lies and misinformation would be allowed to flourish on the site. The billionaire Tesla CEO, who has frequently expressed his belief that Twitter had become too restrictive, has been reinstating suspended accounts, including former President Donald Trump’s.

Twitter faces more scrutiny in Europe by the middle of next year, when new EU rules aimed at protecting internet users’ online safety will start applying to the biggest online platforms. Violations could result in huge fines of up to 6% of a company’s annual global revenue.

France’s online regulator Arcom said it received a reply from Twitter after writing to the company earlier this week to say it was concerned about the effect that staff departures would have on Twitter’s “ability maintain a safe environment for its users.”

Arcom also asked the company to confirm that it can meet its “legal obligations” in fighting online hate speech and that it is committed to implementing the new EU online rules. Arcom said that it received a response from Twitter and that it will “study their response,” without giving more details.

Tech companies that signed up to the EU’s disinformation code agree to commit to measures aimed at reducing disinformation and file regular reports on whether they’re living up to their promises, though there’s little in the way of punishment.

your ad here


Musk Restores Trump’s Twitter Account After Online Poll

Elon Musk reinstated Donald Trump’s account on Twitter on Saturday, reversing a ban that has kept the former president off the social media site since a pro-Trump mob attacked the U.S. Capitol on Jan. 6, 2021, as Congress was poised to certify Joe Biden’s election victory.

Musk made the announcement in the evening after holding a poll that asked Twitter users to click “yes” or “no” on whether Trump’s account should be restored. The “yes” vote won, with 51.8%.

“The people have spoken. Trump will be reinstated. Vox Populi, Vox Dei,” Musk tweeted, using a Latin phrase meaning “the voice of the people, the voice of God.”

Shortly afterward, Trump’s account, which had earlier appeared as suspended, reappeared on the platform complete with his former tweets, more than 59,000 of them. His followers were gone, at least initially.

It is not clear whether Trump would return to Twitter. An irrepressible tweeter before he was banned, Trump has said in the past that he would not rejoin even if his account was reinstated. He has been relying on his own, much smaller social media site, Truth Social, which he launched after being blocked from Twitter.

And on Saturday, during a video speech to a Republican Jewish group meeting in Las Vegas, Trump said that he was aware of Musk’s poll but that he saw “a lot of problems at Twitter,” according to Bloomberg.

“I hear we’re getting a big vote to also go back on Twitter. I don’t see it because I don’t see any reason for it,” Trump was quoted as saying by Bloomberg. “It may make it, it may not make it,” he added, apparently referring to Twitter’s recent internal upheavals.

The prospect of restoring Trump’s presence to the platform follows Musk’s purchase last month of Twitter — an acquisition that has fanned widespread concern that the billionaire owner will allow purveyors of lies and misinformation to flourish on the site. Musk has frequently expressed his belief that Twitter had become too restrictive of freewheeling speech.

His efforts to reshape the site have been both swift and chaotic. Musk has fired many of the company’s 7,500 full-time workers and an untold number of contractors who are responsible for content moderation and other crucial responsibilities. His demand that remaining employees pledge to “extremely hardcore” work triggered a wave of resignations, including hundreds of software engineers.

Users have reported seeing increased spam and scams on their feeds and in their direct messages, among other glitches, in the aftermath of the mass layoffs and worker exodus. Some programmers who were fired or resigned this week warned that Twitter may soon fray so badly it could crash.

Musk’s online survey, which ran for 24 hours before ending Saturday evening, concluded with 51.8% of more than 15 million votes favoring the restoration of Trump’s Twitter’ account. It comes four days after Trump announced his candidacy for the presidency in 2024.

Trump lost his access to Twitter two days after his supporters stormed the Capitol, soon after the former president had exhorted them to “fight like hell.” Twitter dropped his account after Trump wrote a pair of tweets that the company said cast further doubts on the legitimacy of the presidential election and raised risks for the Biden presidential inauguration.

After the Jan. 6 attack, Trump was also kicked off Facebook and Instagram, which are owned by Meta Platforms, and Snapchat. His ability to post videos to his YouTube channel was also suspended. Facebook is set to reconsider Trump’s account suspension in January.

Throughout his tenure as president, Trump’s use of social media posed a significant challenge to major social media platforms that sought to balance the public’s interest in hearing from public officials with worries about misinformation, bigotry, harassment and incitement of violence.

But in a speech at an auto conference in May, Musk asserted that Twitter’s ban of Trump was a “morally bad decision” and “foolish in the extreme.”

Earlier this month, Musk, who completed the $44 billion takeover of Twitter in late October, declared that the company wouldn’t let anyone who had been kicked off the site return until Twitter had established procedures on how to do so, including forming a “content moderation council.”

On Friday, Musk tweeted that the suspended Twitter accounts for the comedian Kathy Griffin, the Canadian psychologist Jordan Peterson and the conservative Christian news satire website Babylon Bee had been reinstated. He added that a decision on Trump had not yet been made. He also responded “no” when someone on Twitter asked him to reinstate the conspiracy theorist Alex Jones’ account.

In a tweet Friday, the Tesla CEO described the company’s new content policy as “freedom of speech, but not freedom of reach.”

He explained that a tweet deemed to be “negative” or to include “hate” would be allowed on the site but would be visible only to users who specifically searched for it. Such tweets also would be “demonetized, so no ads or other revenue to Twitter,” Musk said.

your ad here


Botswana Records Surge in Lithium Batteries Theft as Global Demand Soars

Authorities in Botswana are reporting increased thefts of lithium batteries from mobile phone towers amid a surge in global demand for the battery in electric vehicles. The southern African nation’s biggest mobile network operator says it has lost more than $100,000 worth of lithium batteries in the past week alone.

Botswana police spokesperson Diteko Motube said most of the stolen batteries are being smuggled across the border to Zimbabwe.

Motube said five suspects from Zimbabwe and a Botswanan national were arrested this week while in possession of batteries worth more than $100,000.

The batteries were stolen from Botswana’s leading mobile network service provider, Mascom.

Company spokesperson Tebogo Lebotse-Sebego said the thefts are derailing their service delivery.

“This issue is certainly a crisis and it is affecting our quality of services ambitions,” said Lebotse-Sebego. “We are working closely with the relevant law enforcement offices and other administrators, including the community to find sustainable solutions to arrest the situation.”

Electric cars fuel demand

There is a surge in global demand for lithium batteries – and their components – due to their use in electric cars.

However, Zimbabwean-born UK based economic and political analyst Zenzo Moyo said the thefts in Botswana could be the result of the frequent power outages experienced in some southern African countries.

“It is not surprising that these lithium batteries are in high demand now mainly because of the load shedding that is being experienced in southern Africa especially in Zimbabwe and South Africa,” said Moyo.

Some households use lithium batteries for solar lighting, while light industries also rely on them.

Moyo said there is a huge market for the batteries in countries — such as Zimbabwe — that are turning to alternative energy sources.

“The economic hardships that Zimbabwe face cannot be used as an excuse for any kind of theft whether these are batteries or not,” he said. “If you look at the numbers that (the police) intercepted — these are huge numbers — it indicates that the people who were carrying these batteries are either runners or were selling them. There is a huge market for them understandably but the people that were carrying these batteries cannot be people who are starving but selling because there is a market.”

Demand greater than supply

Lithium’s price has risen 13-fold in the last two years, with global demand for the metal rapidly outpacing supply.

Benchmark Mineral Intelligence, a London-based price reporting agency, projects, that the lithium mining market will almost double in the next eight years to nearly $6.4 billion in 2030.

your ad here