Enlarge / Enhanced Juno image of Jupiter’s Great Red Spot in 2018. It is likely not the same one observed by Cassini in the 1600s. (credit: Gerald Eichstadt and Sean Doran/CC BY-NC-SA)

The planet Jupiter is particularly known for its so-called Great Red Spot, a swirling vortex in the gas giant's atmosphere that has been around since at least 1831. But how it formed and how old it is remain matters of debate. Astronomers in the 1600s, including Giovanni Cassini, also reported a similar spot in their observations of Jupiter that they dubbed the "Permanent Spot." This prompted scientists to question whether the spot Cassini observed is the same one we see today. We now have an answer to that question: The spots are not the same, according to a new paper published in the journal Geophysical Research Letters.

“From the measurements of sizes and movements, we deduced that it is highly unlikely that the current Great Red Spot was the ‘Permanent Spot’ observed by Cassini,” said co-author Agustín Sánchez-Lavega of the University of the Basque Country in Bilbao, Spain. “The ‘Permanent Spot’ probably disappeared sometime between the mid-18th and 19th centuries, in which case we can now say that the longevity of the Red Spot exceeds 190 years.”

The planet Jupiter was known to Babylonian astronomers in the 7th and 8th centuries BCE, as well as to ancient Chinese astronomers; the latter's observations would eventually give birth to the Chinese zodiac in the 4th century BCE, with its 12-year cycle based on the gas giant's orbit around the Sun. In 1610, aided by the emergence of telescopes, Galileo Galilei famously observed Jupiter's four largest moons, thereby bolstering the Copernican heliocentric model of the solar system.

Enlarge / A rendering of the Copilot button. (credit: Microsoft)

Microsoft is all-in on its Copilot+ PC push right now, but the fact is that they'll be an extremely small minority among the PC install base for the foreseeable future. The program's stringent hardware requirements—16GB of RAM, at least 256GB of storage, and a fast neural processing unit (NPU)—disqualify all but new PCs, keeping features like Recall from running on all current Windows 11 PCs.

But the Copilot chatbot remains supported on all Windows 11 PCs (and most Windows 10 PCs), and a change Microsoft has made to recent Windows 11 Insider Preview builds is actually making the feature less useful and accessible than it is in the current publicly available versions of Windows. Copilot is being changed from a persistent sidebar into an app window that can be resized, minimized, and pinned and unpinned from the taskbar, just like any other app. But at least as of this writing, this version of Copilot can no longer adjust Windows' settings, and it's no longer possible to call it up with the Windows+C keyboard shortcut. Only newer keyboards with the dedicated Copilot key will have an easy built-in keyboard shortcut for summoning Copilot.

If Microsoft keeps these changes intact, they'll hit Windows 11 PCs when the 24H2 update is released to the general public later this year; the changes are already present on Copilot+ PCs, which are running a version of Window 11 24H2 out of the box.

Enlarge / Do you have a few hundred hours to hear the good news about our lord and savior, Diablo? (credit: Blizzard)

Longtime fans of Diablo II are deeply familiar with the extreme timesink that is the late-game grind for the very best loot. But when the creators of Diablo IV tried to re-create that style of grinding for the latest game in the series, they found that their players' tastes had changed quite a bit in the intervening years.

In a wide-ranging interview with Windows Central, Blizzard's general manager of Diablo, Rod Fergusson, said that they launched Diablo IV under "the assumption that D4 was meant to be more D2-like." That meant, in part, increasing the length of time required to discover the game's most valuable items after post-Auction-House Diablo 3 made rare item drops much more common.

"One of the assumptions was that people were going to be okay with the long grind for the Unique or an Uber Unique in particular, because in Diablo II, it can go years," Fergusson said. "You can go three years before you find the Uber you're looking for... and so we were like, okay, this is what people love about the progression of D2, that idea of that very long chase."

Enlarge / Recall is part of Microsoft's Copilot+ PC program. (credit: Microsoft)

Microsoft will be delaying its controversial Recall feature again, according to an updated blog post by Windows and Devices VP Pavan Davuluri. And when the feature does return "in the coming weeks," Davuluri writes, it will be as a preview available to PCs in the Windows Insider Program, the same public testing and validation pipeline that all other Windows features usually go through before being released to the general populace.

Recall is a new Windows 11 AI feature that will be available on PCs that meet the company's requirements for its "Copilot+ PC" program. Copilot+ PCs need at least 16GB of RAM, 256GB of storage, and a neural processing unit (NPU) capable of at least 40 trillion operations per second (TOPS). The first (and for a few months, only) PCs that will meet this requirement are all using Qualcomm's Snapdragon X Plus and X Elite Arm chips, with compatible Intel and AMD processors following later this year. Copilot+ PCs ship with other generative AI features, too, but Recall's widely publicized security problems have sucked most of the oxygen out of the room so far.

The Windows Insider preview of Recall will still require a PC that meets the Copilot+ requirements, though third-party scripts may be able to turn on Recall for PCs without the necessary hardware. We'll know more when Recall makes its reappearance.

Enlarge (credit: Boris Zhitkov | Moment)

The European Center for Digital Rights, known as Noyb, has filed complaints in 11 European countries to halt Meta's plan to start training vague new AI technologies on European Union-based Facebook and Instagram users' personal posts and pictures.

Meta's AI training data will also be collected from third parties and from using Meta's generative AI features and interacting with pages, the company has said. Additionally, Meta plans to collect information about people who aren't on Facebook or Instagram but are featured in users' posts or photos. The only exception from AI training is made for private messages sent between "friends and family," which will not be processed, Meta's blog said, but private messages sent to businesses and Meta are fair game. And any data collected for AI training could be shared with third parties.

"Unlike the already problematic situation of companies using certain (public) data to train a specific AI system (e.g. a chatbot), Meta's new privacy policy basically says that the company wants to take all public and non-public user data that it has collected since 2007 and use it for any undefined type of current and future 'artificial intelligence technology,'" Noyb alleged in a press release.