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China’s experimental moon satellites beam back lunar imagery (video, photo) – Space.com

A pair of small experimental satellites have begun tests related to future lunar communication and navigation services for China’s moon ambitions.

The Tiandu-1 and Tiandu-2 satellites launched toward the moon along with the Queqiao-2 lunar communications relay satellite on a Long March 8 rocket on March 19. The latter spacecraft will support a major mission — the upcoming Chang’e 6 lunar far side sample return effort, which could launch as soon as next month —but the former are intended as a pathfinder for future lunar infrastructure.

China’s Deep Space Exploration Lab (DSEL) stated on April 13 that Tiandu-1 and Tiandu-2 had carried out tests of high-reliability transmission and routing between Earth and the lunar surface. 

Related: China to launch 1st-ever sample return mission to moon’s far side in 2024

China’s Tiandu-2 experimental lunar satellite took this far-infrared image of the moon and Earth (bottom center) on April 8, 2024.  (Image credit: CNSA/DSEL)

One of the pair also transmitted an infrared image showing the heavily cratered far side of the moon, including a view of a distant planet Earth.

The Tiandu pair entered lunar orbit on April 3 and are flying in formation around 124 miles (200 kilometers) apart. Tiandu-1 weighs 134 pounds (61 kilograms) and is equipped with a Ka-band dual-frequency communicator, a laser retroreflector and a space router. Tiandu-2 weighs 33 lbs (15 kg) and carries communication and navigation devices.

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DSEL stated that the test satellites will conduct further lunar communication and navigation technology experiments. The results will guide the design and construction of the planned International Lunar Research Station (ILRS) and a Queqiao satellite constellation for lunar communication, navigation and remote sensing.

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Would You Still Use Google if It Didn’t Pay Apple $20 Billion to Get on Your iPhone? – WIRED

Microsoft has poured over $100 billion into developing its Bing search engine over the past two decades but has little market share to show for it. About nine out of every 10 web searches in the US are made through Google, with Bing splitting the remaining queries with a long list of small competitors.

On Thursday the US government asked a federal judge in Washington, DC, to rule that Google maintains that lead illegally, by unfairly manipulating users to keep Microsoft and other competitors down.

Google’s dominance drove the US Department of Justice to sue the company in 2020 alleging that it had violated antitrust law by using exclusionary contracts to maintain a monopoly. The two sides went into a secretive trial at the end of last year before breaking for nearly five months for US Judge Amit Mehta to digest the evidence.

Mehta heard closing arguments on Thursday, with government attorneys arguing that without his intervention Google’s dominance would remain in years to come—despite nascent threats from AI chatbots like ChatGPT. “The search engine industry has been impervious to any competitor entering,” attorney Kenneth Dintzer said.

The case is the first to go to trial out of a handful of lawsuits the government has brought against the biggest tech companies since stepping up antitrust scrutiny of the industry in 2019 under then-President Donald Trump. The Biden administration hasn’t let off the gas.

Central to the government’s case against Google is the over $20 billion it says that Google pays Apple annually to be the default search engine on iPhones and the Safari browser across much of the world. Google pays an additional more than $1.5 billion a year to wireless carriers and device makers, and more than $150 million to browsers, for similar defaults in the US, according to the government. Google can afford to pay those sums and still enjoy enormous profits because it has the US market for search and search ads cornered, the government alleges.

Google’s attorneys counter that companies such as Apple choose Google as the default because it offers a better experience to users, not just because they are getting payouts. When browsers such as Mozilla have opted for alternatives to Google, they have lost users because of the change, the search company argues. “Google lawfully acquired monopoly power and scale,” attorney John Schmidtlein told Mehta. “Microsoft missed the boat.”

Before Mehta now is the question of whether Google unfairly earned its popularity.

Profit Boost

Google’s deals with Apple date to 2002, when the Safari developer first gained the option to integrate Google search into the browser, according to court papers. The payments started after Google cofounder Sergey Brin in 2005 raised the idea of sharing a slice of the company’s blossoming search revenue or “helping Apple out in other ways,” Brin wrote, according to court papers.

But in a deal struck that year, Google got something in exchange for agreeing to pay Apple half of its sales: Google search would be required to be the default in Safari. The requirement has spread to more Apple services in the years since, while the revenue share and related incentive fees have fluctuated.

Apple has avoided what it estimated at one point, according to court filings, would be $6 billion in annual costs to run its own search engine. Instead, it’s pocketed extra profits. The government estimates Google’s payments accounted for 17.5 percent of Apple’s operating profit in its fiscal year 2020.

Mehta quizzed Google’s attorneys about the payments Thursday. “If you’re talking about quality, why pay billions in revenue share?” he asked, describing the situation as “odd.” He wondered about how reasonable it was that to replace Google as Apple’s default, someone would have to spend not only billions of dollars to develop a search engine, but also billions of dollars to keep Apple’s bank account full. “Wouldn’t the writers of the Sherman Act be concerned?” Mehta asked. “How would anybody be able to dislodge Google?”

The government envisions a world in which Google could pay to be offered as a search option on some phones and services, but would be barred from making such payments contingent on excluding rivals. In the government’s telling, competition would be more even in that scenario and companies such as Apple should end up with more revenue overall.

Google’s attorneys acknowledge if Bing supplanted Google as the default on iPhones, the ripples would be wide and steep—just not in a way users would want. If Apple truly felt Google search wasn’t best, it can opt out of the deal, Google’s attorney Schmidtlein told Mehta. “Apple has every incentive to make sure there is competition and that they are putting out the highest quality product,” he says.

Mehta will hear closing arguments about Google’s dominance in search ads on Friday. It’s unclear how soon his final ruling will come, though it could be months. Appeals are expected to drag on the case for years more after that. In the meantime, Microsoft will have to keep spending on Bing to hold on to what little search share it’s got.

Additional reporting by Lauren Goode

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China to launch ambitious mission to far side of the moon amid Nasa ‘space race’ concerns – The Guardian

China will attempt another mission to the far side of the moon on Friday, the first of three planned over coming years as part of its goal to land a human on the lunar surface by 2030.

The launch of the uncrewed Chang’e-6 is expected sometime between 8.30am GMT and 11am GMT and the mission – if successful – would go far to bolster China’s ambitions to put a man on the moon by 2030.

However the mission has also drawn concern from China’s major rival, the US, over Beijing’s geopolitical intentions amid what the head of Nasa has called a new “space race”.

Since the first Chang’e mission in 2007, named after the mythical Chinese moon goddess, China has made leaps forward in its lunar exploration, narrowing the technological chasm with the United States and Russia.

With no direct line of sight with the Earth, Chang’e-6 must rely on a recently deployed relay satellite orbiting the moon during its 53-day mission, including a never-before attempted ascent from the moon’s “hidden” side on its return journey home.

The same relay satellite will support the uncrewed Chang’e-7 and 8 missions in 2026 and 2028, respectively, when China starts to explore the south pole for water and build a rudimentary outpost with Russia, in an effort to achieve Beijing’s aim of putting astronauts on the moon by 2030.

As part of its mission, the Chang’e-6 will attempt to retrieve samples from the south pole Aitken Basin, the largest and oldest impact crater on the moon, situated on the side permanently facing away from Earth. Experts say the samples which could answer questions about a significant period of solar system activity billions of years ago.

Should the mission be successful, the Chinese National Space Administration (CNSA) is expected to share the samples internationally, just as it did with the moon rocks collected during the 5th Chang’e mission – the first collected since the US Apollo missions.

That mission in 2020 confirmed for the first time that China could safely return an uncrewed spacecraft to Earth from the lunar surface.

China’s space program is central to the government’s overall national strategy, and is widely celebrated within the country as a demonstration of the nation’s technological advancement.

Beijing’s polar plans have worried Nasa, whose administrator, Bill Nelson, has repeatedly warned that China would claim any water resources as its own. Beijing says it remains committed to cooperation with all nations on building a “shared” future.

Nelson has also warned of China bolstering its space capabilities by using civilian programs to mask military objectives, cautioning that Washington must remain vigilant.

Reuters contributed to this report

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China moon probe stands by for launch as space race with US heats up – CNN

Editor’s Note: Sign up for CNN’s Meanwhile in China newsletter which explores what you need to know about the country’s rise and how it impacts the world.


Wenchang/Hong Kong
CNN
 — 

China is scheduled to launch an uncrewed lunar mission Friday that aims to bring back samples from the far side of the moon for the first time, in a potentially major step forward for the country’s ambitious space program.

The Chang’e-6 probe – China’s most complex robotic lunar mission to date – marks a key milestone in the country’s push to become a dominant space power with plans to land astronauts on the moon by 2030 and build a research base on its south pole.

The expected launch of the probe on a Long March-5 rocket from the Wenchang Space Launch Center in south China’s Hainan island comes as a growing number of countries, including the United States, eye the strategic and scientific benefits of expanded lunar exploration in an increasingly competitive field.

China’s planned 53-day mission would see the Chang’e-6 lander touch down in a gaping crater on the moon’s far side, which never faces Earth. China became the first and only country to land on the moon’s far side during its 2019 Chang’e-4 mission.

Any far-side samples retrieved by the Chang’e-6 lander could help scientists peer back into the evolution of the moon and the solar system itself – and provide important data to advance China’s lunar ambitions.

“The Chang’e-6 aims to achieve breakthroughs in the design and control technology of the moon’s retrograde orbit, intelligent sampling, take-off and ascent technologies, and automatic sample-return on the far side of the moon,” Ge Ping, deputy director of the China National Space Administration’s Center of Lunar Exploration and Space Engineering said last week from the launch site.

Ambitious mission

The Chang’e-6 probe will be a key test for China’s space capabilities in its effort to realize leader Xi Jinping’s “eternal dream” of building the country into a space power.

China has made rapid space advancements in recent years, in a field traditionally led by the United States and Russia.

With the Chang’e program, launched in 2007 and named for the moon goddess of Chinese mythology, China in 2013 became the first country to achieve a robotic lunar landing in nearly four decades. In 2022, China completed its own orbital space station, the Tiangong.

The technically complex Chang’e-6 mission builds on both the Chang’e-4’s 2019 record of landing on the far side of the moon, and Chang’e-5’s 2020 success returning to Earth with near-side moon samples.

This time, to communicate with Earth from the moon’s far side, Chang’e-6 must rely on the Queqiao-2 satellite, launched into lunar orbit in March.

The probe itself is composed of four parts: an orbiter, a lander, an ascender and a reentry module.

The mission plan is for the Chang’e-6’s lander to gather moon dust and rocks after touching down in the sprawling, roughly 2,500-kilometer diameter South Pole-Aitken basin, a crater formed some 4 billion years ago.

An ascender spacecraft would then transport the samples to the lunar orbiter for transfer to the reentry module and the mission’s return to Earth.

The complex mission “goes through virtually every step” that will be required for Chinese astronauts to land on the moon in the years ahead, according to James Head, a professor emeritus at Brown University who has collaborated with Chinese scientists leading the mission.

In addition to returning samples that could yield “fundamental new insights into the origin and early history of the moon and solar system,” the mission also serves as “robotic practice for these steps” to get astronauts to the moon and back, he said.

China plans to launch two more missions in the Chang-e series as it nears its 2030 target of sending astronauts to the moon before building a research station in the following decade on the lunar south pole – a region believed to contain water ice.

Chang’e-7, scheduled for 2026, will aim to search for resources on the moon’s south pole, while Chang’e-8 roughly two years later could look at how to utilize lunar materials to prepare for building the research base, Chinese officials have said.

Spectators watch a rocket carrying the relay satellite Queqiao-2 blast off from the Wenchang Spacecraft Launch Site on March 20, 2024.

Competitive space

Friday’s launch comes as multiple nations ramp up their lunar programs amid a growing focus on the potential access to resources and further deep space exploration access that successful moon missions could bring.

Last year, India landed its first spacecraft on the moon, while Russia’s first lunar mission in decades ended in failure when its Luna 25 probe crashed into the moon’s surface.

In January, Japan became the fifth country to land a spacecraft on the moon, though its Moon Sniper lander faced power issues due to an incorrect landing angle. The following month, IM-1, a NASA-funded mission designed by Texas-based private firm Intuitive Machines, touched down close to the south pole.

That landing – the first by a US-made spacecraft in over five decades – is among several planned commercial missions intended to explore the lunar surface before NASA attempts to return US astronauts there as soon as 2026 and build its scientific base camp.

NASA administrator Bill Nelson last month appeared to acknowledge that China’s pace – and concerns about its intentions – were driving the American urgency to return to the moon, decades after its Apollo-crewed missions.

“We believe that a lot of their so-called civilian space program is a military program. I think in effect we are in a race,” Nelson told lawmakers last month, adding his concern that China could try to bar the US or other countries from certain lunar areas if they arrive there first.

China has long said it stands for the peaceful use of space, and, like the US, has looked to use its space prowess to cultivate international goodwill.

This time, China has said the Chang’e-6 mission will carry scientific instruments or payloads from France, Italy, Pakistan and the European Space Agency.

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