NASA shakes up its Artemis program to speed up lunar return

NASA shakes up its Artemis program to speed up lunar return

fivenewscrypto    mars 01, 2026   

NASA Administrator Jared Isaacman announced sweeping changes to the Artemis program on Friday morning, including an increased cadence of missions and cancellation of an expensive rocket stage.

The upheaval comes as NASA has struggled to fuel the massive Space Launch System rocket for the upcoming Artemis II lunar mission, and Isaacman has sought to revitalize an agency that has moved at a glacial pace on its deep space programs. There is ever-increasing concern that, absent a shake-up, China's rising space program will land humans on the Moon before NASA can return there this decade with Artemis.

"NASA must standardize its approach, increase flight rate safely, and execute on the president’s national space policy," Isaacman said. "With credible competition from our greatest geopolitical adversary increasing by the day, we need to move faster, eliminate delays, and achieve our objectives."

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How to downgrade from macOS 26 Tahoe on a new Mac

How to downgrade from macOS 26 Tahoe on a new Mac

fivenewscrypto    mars 01, 2026   

An Ars Technica colleague recently bought a new M4 MacBook Air. I have essentially nothing bad to say about this hardware, except to point out that even in our current memory shortage apocalypse, Apple is still charging higher-than-market-rates for RAM and SSD upgrades. Still, most people buying this laptop will have a perfectly nice time with it.

But for this colleague, it was also their first interaction with macOS 26 Tahoe and the Liquid Glass redesign, the Mac's first major software design update since the Apple Silicon era began with macOS 11 Big Sur in 2020.

Negative consumer reaction to Liquid Glass has been overstated by some members of the Apple enthusiast media ecosystem, and Apple's data shows that iOS 26 adoption rates are roughly in line with those of the last few years. But the Mac's foray into Liquid Glass has drawn particular ire from longtime users (developers Jeff Johnson and Norbert Heger have been tracking persistently weird Finder and window resizing behavior, to pick two concrete examples, and Daring Fireball's John Gruber has encouraged users not to upgrade).

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Block lays off 40% of workforce as it goes all-in on AI tools

Block lays off 40% of workforce as it goes all-in on AI tools

fivenewscrypto    mars 01, 2026   

Block, the fintech group headed by Twitter cofounder Jack Dorsey, will cut its workforce by “nearly half” in one of the clearest signs of the sweeping changes AI tools are having on employment.

Shares in the payment company soared more than 25 percent in after-hours trading on Thursday as it announced it would shed more than 4,000 jobs from its 10,000-strong workforce.

“Intelligence tools have changed what it means to build and run a company. We’re already seeing it internally,” Dorsey wrote in a letter to shareholders.

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Apple says it has "a big week ahead." Here's what we expect to see.

Apple says it has "a big week ahead." Here's what we expect to see.

fivenewscrypto    mars 01, 2026   

Excepting the AirTag 2, so far it's been a quiet year for Apple hardware. But that's poised to change next week, as the company is hosting a "special experience" on March 4.

The use of the word experience, rather than event or presentation, implies that Apple’s typical presentation format won't apply here. And CEO Tim Cook more or less confirmed this when he posted that the company had "a big week ahead," starting on Monday. Apple is most likely planning multiple days of product launches announced via press release on its Newsroom site, with the “experience” on Wednesday serving as a capper and a hands-on session for the media.

Apple has used a similar strategy before, spacing out relatively low-key refreshes over several days to generate sustained interest rather than dropping everything in a single 30- to 60-minute string of pre-recorded videos.

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Rocket Report: Vulcan "many months" from flying; Falcon 9 extends reuse milestone

Rocket Report: Vulcan "many months" from flying; Falcon 9 extends reuse milestone

fivenewscrypto    mars 01, 2026   

Welcome to Edition 8.31 of the Rocket Report! We have some late-breaking news this week with an update Thursday afternoon from Rocket Lab on the timing of its much-anticipated Neutron rocket. Following the failure of a first stage tank during testing, the company is pushing the medium-lift rocket's debut into the fourth quarter of this year. Effectively that probably means 2027 for the booster, which is disappointing because we all very much want to see another reusable rocket take flight.

As always, we welcome reader submissions, and if you don't want to miss an issue, please subscribe using the box below (the form will not appear on AMP-enabled versions of the site). Each report will include information on small-, medium-, and heavy-lift rockets as well as a quick look ahead at the next three launches on the calendar.

The ghost of Vector lives on. Tucson, Arizona-based satellite and rocket developer Phantom Space, co-founded by Jim Cantrell in 2019, has acquired the remnants of Vector Launch, Space News reports. The announcement is notable because Cantrell left Vector as its finances deteriorated in 2019. Cantrell said some of the assets, comprising flight-proven design elements, engineering data, and other technology originally developed for Vector, will be immediately integrated into Phantom’s Daytona vehicle architecture to reduce development risk.

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Neanderthals seemed to have a thing for modern human women

Neanderthals seemed to have a thing for modern human women

fivenewscrypto    février 28, 2026   

By now, it's firmly established that modern humans and their Neanderthal relatives met and mated as our ancestors expanded out of Africa, resulting in a substantial amount of Neanderthal DNA scattered throughout our genome. Less widely recognized is that some of the Neanderthal genomes we've seen have pieces of modern human DNA as well.

Not every modern human has the same set of Neanderthal DNA, however; different people will, by chance, have inherited different fragments. But there are also some areas, termed "Neanderthal deserts," where none of the Neanderthal DNA seems to have persisted. Notably, the largest Neanderthal desert is the entire X chromosome, raising questions about whether this reflects the evolutionary fitness of genes there or mating preferences.

Now, three researchers at the University of Pennsylvania, Alexander Platt, Daniel N. Harris, and Sarah Tishkoff, have done the converse analysis: examining the X chromosomes of the handful of completed Neanderthal genomes we have. It turns out there's also a strong bias toward modern human sequences there, as well, and the authors interpret that as selective mating, with Neanderthal males showing a strong preference for modern human females and their descendants.

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Perplexity announces "Computer," an AI agent that assigns work to other AI agents

Perplexity announces "Computer," an AI agent that assigns work to other AI agents

fivenewscrypto    février 28, 2026   

Perplexity has introduced "Computer," a new tool that allows users to assign tasks and see them carried out by a system that coordinates multiple agents running various models.

The company claims that Computer, currently available to Perplexity Max subscribers, is "a system that creates and executes entire workflows" and "capable of running for hours or even months."

The idea is that the user describes a specific outcome—something like "plan and execute a local digital marketing campaign for my restaurant" or "build me an Android app that helps me do a specific kind of research for my job." Computer then ideates subtasks and assigns them to multiple agents as needed, running the models Perplexity deems best for those tasks.

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