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Europe’s JUICE spacecraft ready to explore Jupiter’s icy moons

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'The beast' is unleashed: Europe's JUICE spacecraft was unveiled in France ahead of its planned launch in April
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Europe’s JUICE spacecraft is all ready to embark on an eight-year odyssey through the Solar System to find out whether the oceans hidden under the surface of Jupiter’s icy moons have the potential to host extraterrestrial life.

For now, the Jupiter Icy Moons Explorer (JUICE) is in a white room of its manufacturer Airbus in the southwestern French city of Toulouse. But its days on this planet are numbered.

Soon the spacecraft will be put in a container, wings carefully folded away, ahead of travelling to Europe’s spaceport in Kourou, French Guiana off the coast of South America in early February.

From there, one of Europe’s most ambitious space missions ever is scheduled to launch in April.

The scientists and engineers in Toulouse who have spent years working on the project are clearly emotional at the thought of saying goodbye to what they call “the beast”.

They finally unveiled the six-tonne spacecraft to journalists on Friday — showing off its 10 scientific instruments, antenna 2.5 metres (eight feet) in diameter for communicating with Earth, and vast array of solar panels which still need to be tested one last time.

As a parting gift, a commemorative plaque was mounted on the back of the spacecraft in tribute to Italian astronomer Galileo Galilei, who was the first to spot Jupiter and its largest moons in 1610.

Volcanic Io and its icy siblings Europa, Ganymede and Callisto were “the first moons discovered outside of our own,” said Cyril Cavel, the Airbus project manager for JUICE.

Cavel carried a copy of Galileo’s “Sidereus Nuncius”, the first treatise based on observations made through a telescope.

More than 400 years later, JUICE will give a far clearer image of Europa, Ganymede and Callisto, before becoming the first spacecraft to orbit around one of Jupiter’s moons. 

– Earth is ‘like a catapult’ –

It will be the first European space mission that ventures into the outer solar system, which begins beyond Mars.

Jupiter is more than 600 million kilometres (370 million miles) from Earth and JUICE will take a circuitous path before its scheduled arrival in July 2031.

The spacecraft will travel a total of two billion kilometres, using the gravity of Earth — then Venus — for a boost along the way.

“It’s like a catapult that gives us momentum to Jupiter,” said Nicolas Altobelli, JUICE project scientist at the European Space Agency (ESA). 

The extra travel time will allow JUICE’s solar panels — which cover an area of 85 square metres, the largest ever built for an interplanetary spacecraft — to soak up as much power as possible.

It will need that power once it crosses the “frost line” between Mars and Jupiter, when temperatures could drop to minus 220 degrees Celsius.

Then JUICE will need to carefully hit the brakes so it can slip into Jupiter’s orbit. For that part, it’s on its own.

“We will follow the manoeuvre from Earth without being able to do anything — if it fails, the mission is lost,” Cavel said.

From Jupiter’s orbit, the satellite will make 35 flybys of Europa, Ganymede and Callisto. Then it will enter the orbit of Ganymede, the largest of the three, before eventually falling to its surface.

– Not looking for ‘big fish’ –

JUICE’s ice-penetrating cameras, sensors, spectrometers and radars will probe the moons to determine whether they could be habitable to past or present life.

It will not be looking at the frozen surface of the moons but 10-15 kilometres below, where vast liquid oceans flow. 

This extreme environment could be home to bacteria and single-celled organisms.

But the mission will not be able to detect “big fish, or creatures,” ESA director-general Josef Aschbacher said.

Instead it will look for conditions capable of supporting life, including liquid water and a source of energy, which could come from the tidal effect Jupiter’s gravity has on its moons.

Measuring magnetic signals could determine whether water on Ganymede is in contact with its rocky core, which would allow chemical elements necessary for life “to be dissolved into the water,” Altobelli said.

NASA’s Clipper mission is planned to launch in 2024 on its own quest to study Europa.

If one of the moons prove to be a particularly good candidate to host life, the “logical next step” would be to send a spacecraft to land on the surface, Cavel said.

He added that he was moved at the thought that JUICE “will end its life on the surface of Ganymede”.

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Meta shouldn’t force users to pay for data protection: EU watchdog

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Meta in November launched a 'pay or consent' system -- a model that has faced several challenges
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Facebook owner Meta and other online platforms must not force users to pay for the right to data protection enshrined in EU law when offering ad-free subscriptions, the European data regulator said Wednesday. 

“Online platforms should give users a real choice when employing ‘consent or pay’ models,” the European Data Protection Board (EDPB) chair Anu Talus said in a statement. 

“The models we have today usually require individuals to either give away all their data or to pay,” she said. “As a result, most users consent to the processing in order to use a service, and they do not understand the full implications of their choices.”

Meta in November launched a “pay or consent” system allowing users to withhold use of their data for ad targeting in exchange for a monthly fee — a model that has faced several challenges from privacy and consumer advocates.

Meta has long profited from selling user data to advertisers but this business model has led to multiple battles with EU regulators over data privacy.

The latest announcement came after the data protection authorities of The Netherlands, Norway and the German state of Hamburg went to the EDPB for an opinion regarding the pay-or-consent model used by Meta.

The Silicon Valley company allows users of Instagram and Facebook in Europe to pay between 10 and 13 euros (around $11 and $14) a month to opt out of data sharing.

Meta pointed to an EU court ruling last year that it said opened the way for subscriptions as a “legally valid” option. “Today’s EDPB opinion does not alter that judgment and subscription for no ads complies with EU laws,” a Meta spokesperson said.

Meta is waiting for a decision on its model by the data privacy regulator in Ireland where the company is headquartered.

– ‘Binary choice’ –

All digital platforms must comply with the European Union’s mammoth general data protection regulation (GDPR), which has been at the root of EU court cases against Meta.

The EDPB in its opinion argued that Meta’s model was at odds with the GDPR’s requirement that consent for data use must be freely given.

“In most cases, it will not be possible for large online platforms to comply with the requirements for valid consent if they confront users only with a binary choice between consenting to processing of personal data for behavioural advertising purposes and paying a fee,” the opinion read.

The EDPB also warned the type of subscription service put forward by Meta “should not be the default way forward” for platforms.

It suggested that platforms should consider an alternative that would give users the right to reject being tracked for advertising purposes without the need to pay.

Privacy defenders welcomed the opinion.

“Overall, Meta is out of options in the EU. It must now give users a genuine yes/no option for personalised advertising,” said prominent online privacy activist Max Schrems.

“We know that ‘Pay or Okay’ shifts consent rates from about three percent to more than 99 percent — so it is as far from ‘freely given’ consent as North Korea is from a democracy,” said Schrems.

Tech lobby group CCIA however warned the EDPB risked “opening a Pandora’s Box”.

“Forcing businesses to offer services at a loss is unprecedented and sends the wrong signals,” said CCIA Europe’s senior policy manager, Claudia Canelles Quaroni.

“All companies should be able to offer paid-for versions of their services.”

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Climate impacts set to cut 2050 global GDP by nearly a fifth

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A new study shows that climate change will cause massive economic damage within the next 25 years
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Climate change caused by CO2 emissions already in the atmosphere will shrink global GDP in 2050 by about $38 trillion, or almost a fifth, no matter how aggressively humanity cuts carbon pollution, researchers said Wednesday.

But slashing greenhouse gas emissions as quickly as possible remains crucial to avoid even more devastating economic impacts after mid-century, they reported in the journal Nature.

Economic fallout from climate change, the study shows, could increase tens of trillions of dollars per year by 2100 if the planet were to warm significantly beyond two degrees Celsius above mid-19th century levels.

Earth’s average surface temperature has already climbed 1.2C above that benchmark, enough to amplify heatwaves, droughts, flooding and tropical storms made more destructive by rising seas.

Annual investment needed to cap global warming below 2C — the cornerstone goal of the 2015 Paris Agreement — is a small fraction of the damages that would be avoided, the researchers found.

Staying under the 2C threshold “could limit average regional income loss to 20 percent compared to 60 percent” in a high-emissions scenario, lead author Max Kotz, an expert in complexity science at the Potsdam Institute for Climate Impact Research (PIK), told AFP. 

Economists disagree on how much should be spent to avoid climate damages. Some call for massive investment now, while others argue it would be more cost-effective to wait until societies are richer and technology more advanced.

– Poor countries hit hardest –

The new research sidesteps this debate, but its eye-watering estimate of economic impacts helps make the case for ambitious near-term action, the authors and other experts said. 

“Our calculations are super relevant” to such cost-benefit analyses, said co-author Leonie Wenz, also a researcher at PIK.

They could also inform government strategies for adapting to climate impacts, risk assessments for business, and UN-led negotiations over compensation for developing nations that have barely contributed to global warming, she told AFP.

Mostly tropical nations — many with economies already shrinking due to climate damages — will be hit hardest, the study found.  

“Countries least responsible for climate change are predicted to suffer income loss that is 60 percent greater than the higher-income countries and 40 percent greater than higher-emission countries,” said senior PIK scientist Anders Levermann. 

“They are also the ones with the least resources to adapt to its impacts.”

Rich countries will not be spared either: Germany and the United States are forecast to see income shrivel by 11 percent by 2050, and France by 13 percent. 

Projections are based on four decades of economic and climate data from 1,600 regions rather than country-level statistics, making it possible to include damages earlier studies ignored, such as extreme rainfall.

– A likely underestimate –

The researchers also looked at temperature fluctuations within each year rather than just averages, as well as the economic impact of extreme weather events beyond the year in which they occurred. 

“By accounting for these additional climate variables, the damages are about 50 percent larger than if we were to only include changes in annual average temperatures,” the basis of most prior estimates, said Wenz.

Wenz and her colleagues found that unavoidable damage would slash the global economy’s GPD by 17 percent in 2050, compared to a scenario with no additional climate impacts after 2020. 

Even so, the new calculations may be conservative.

“They are likely to be an underestimate of the costs of climate change impacts,” Bob Ward, policy director of the Grantham Research Institute on Climate Change and the Environment in London, commented to AFP ahead of the study’s publication.

Damages linked to sea-level rise, stronger tropical cyclones, the destabilisation of ice sheets and the decline of major tropical forests are all excluded, he noted. 

Climate economist Gernot Wagner, a professor at Columbia Business School in New York who was also not involved in the study, said the conclusion that “trillions in damages are all locked in doesn’t mean that cutting carbon pollution doesn’t pay.”

In fact, he said, it shows that “the costs of acting are a fraction of the costs of unmitigated climate change”. 

Global GDP in 2022 was just over $100 trillion, according to the World Bank. The study projects that — absent climate impacts after 2020 — it would be double that in 2050.

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Meta ‘supreme court’ takes on cases of deepfake porn

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Meta's independent oversight board can make recommendations regarding the social media giant's deepfake porn policies but it is up to the tech firm to actually make any changes
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Meta’s oversight board said Tuesday it is scrutinizing the social media titan’s deepfake porn policies, through the lens of two cases.

The move by what is referred to as a Meta “supreme court” for content moderation disputes comes just months after the widespread sharing of lewd AI-generated images of megastar Taylor Swift on X, formerly Twitter.

The Meta board picked its two cases, regarding images shared on Instagram and Facebook, to “assess whether Meta’s policies and its enforcement practices are effective at addressing explicit AI-generated imagery,” it said in the release.

The board can make recommendations regarding the social media giant’s deepfake porn policies but it is up to the tech firm to actually make any changes.

The first case taken up by the Meta Oversight Board involves an AI-generated image of a nude woman posted on Instagram.

The woman pictured resembled a public figure in India, sparking complaints from users in that country.

Meta left the image up, later saying it did so in error, the board said.

The second case involves a picture posted to a Facebook group devoted to AI creations.

That image depicted a nude woman resembling “an American public figure” with a man groping one of her breasts, the board said in a release.

The board did not name the woman, who it said was identified in a caption on the synthetic image at issue.

Meta removed the image for violating its harassment policy, and the user who posted the content appealed the decision, according to the board.

People were invited to submit comment, particularly on the gravity of harms posed by deepfake pornography and the harm it does to women who are public figures.

Deepfake porn images of celebrities are not new, but activists and regulators are worried that easy-to-use tools employing generative AI will create an uncontrollable flood of toxic or harmful content.

The targeting of Swift, one of the world’s top-streamed artists whose latest concert tour propelled her to the top of American fame, shined a spotlight on the phenomenon, with her legions of fans outraged at the development.

“It is alarming,” said White House Press Secretary Karine Jean-Pierre, when asked about the images at the time.

“Sadly we know that lack of enforcement (by the tech platforms) disproportionately impacts women and they also impact girls who are the overwhelming targets of online harassment,” Jean-Pierre added.

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