Technologies

Astronomers have 12 new tools to study dark matter mysteries

A dozen stellar streams have entered the chat.

Studying dark matter is complicated. In reality, the best way to think about the phenomenon is as transparent matter. We can’t seem to see it, and it doesn’t interact with light, so essentially, it’s invisible to us.

But scientists haven’t backed down from the challenge. To date, they’ve come up with numerous unique ways to unveil the elusive stuff, as well as theories to explain it — and in a paper published Tuesday in the Astrophysical Journal, a team of experts just added several new tools to the dark matter quest’s arsenal.

They discovered a dozen never-before-seen stellar streams, or sparkly, yet pulverized, remnants of ancient dwarf galaxies and star clusters orbiting the Milky Way. For eons, the Milky Way’s gravitational pull has been disrupting such river-like structures’ paths and eventually forcing them to merge with it.

In other words, our home galaxy has been feasting on its neighboring cosmic cul-de-sacs as though they’re well-placed buffets. «As our galaxy is getting older, it is getting fatter,» Ting Li, a professor at the University of Toronto and lead author of the paper, said in a statement. «This study gives us a snapshot of the Milky Way’s feeding habits, such as what kinds of smaller stellar systems it ‘eats.'»

So, where does dark matter tie in?

Well, stellar streams offer a roundaboutway of deriving information of the universe’s hidden building blocks by providing adjacent clues. For instance, astronomers can measure the streams’ orbital speed, rotation trajectory, chemical composition and shape to see what isn’t present.

«Think of a Christmas tree,» Geraint F. Lewis, a professor at the University of Sydney and author of the paper, said in a statement. «On a dark night, we see the Christmas lights, but not the tree they are wrapped around. But the shape of the lights reveals the shape of the tree. It is the same with stellar streams — their orbits reveal the dark matter.»

The logic is fitting, as the only reason we even know dark matter and dark energy exists is due to a sort of indirect reasoning: According to scientists’ calculations, all the universe’s normal matter can’t explain how most galaxies are held together and all the universe’s normal energy can’t account for it’s continuous expansion. We call the missing piece of the expansion puzzle dark energy, and of the structure puzzle, dark matter.

As per the team, the more stellar streams we can find, the closer we may be to understanding the nature of the universe’s mysterious side. In fact, that’s part of why Li and collaborators initiated a program called the Southern Stellar Stream Spectroscopic Survey to dedicate themselves to locating as many as possible. Along with data from the European Gaia mission — which aims to chart an ambitious 3D map of our galaxy — that’s how the research team found the new, promising stellar streams.

Further down the line, Li said, stellar streams may prove critical in figuring out how the Milky Way came to be in the first place, after the Big Bang. «For me, this is one of the most intriguing questions, a question about our ultimate origins,» Li said.

Technologies

Verum Messenger: Don’t follow the future. Define it

In a world where information defines influence, Verum Messenger is building a new architecture of digital communication — intelligent, secure, and ready for tomorrow. Here, technology serves not limitations, but possibilities.

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Technologies

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Technologies

Google races to put Gemini at the center of Android before Apple’s AI reboot

Google is using its latest Android rollout to position Gemini as the AI layer across phones, Chrome, laptops and cars.

Google is using its latest Android rollout to make Gemini less of a chatbot and more of an operating layer across the phone, browser, car and laptop, just weeks before Apple is expected to show its own Gemini-powered Apple Intelligence reboot at WWDC.
Ahead of its Google I/O developer conference next week, the company previewed a number of Android updates, including AI-powered app automation, a smarter version of Chrome on Android, new tools for creators, a redesigned Android Auto experience, and a sweeping set of new security features.
Alphabet is counting on Gemini to help Google compete directly with OpenAI and Anthropic in the market for artificial intelligence models and services, while also serving as the AI backbone across its expansive portfolio of products, including Android. Meanwhile, Gemini is powering part of Apple’s new AI strategy, giving Google a role in the iPhone maker’s reset even as it races to prove its own version of personal AI on the phone is further along.
Sameer Samat, who oversees Google’s Android ecosystem, told CNBC that Google is rebuilding parts of Android around Gemini Intelligence to help users complete everyday tasks more easily.
“We’re transitioning from an operating system to an intelligence system,” he said.
As part of Tuesday’s announcements. Google said Gemini Intelligence will be able to move across apps, understand what’s on the screen and complete tasks that would normally require a user to jump between multiple services. That means Android is moving beyond the traditional assistant model, where users ask a question and get an answer, and acting more like an agent.
For instance, Google says Gemini can pull relevant information from Gmail, build shopping carts and book reservations. Samat gave the example of asking Gemini to look at the guest list for a barbecue, build a menu, add ingredients to an Instacart list and return for approval before checkout.
A big concern surrounding agentic AI involves software taking action on a user’s behalf without permissions. Samat said Gemini will come back to the user before completing a transaction, adding, “the human is always in the loop.”
Four months after announcing its Gemini deal with Google, Apple is under pressure to show a more capable version of Apple Intelligence, which has been a relative laggard on the market. Apple has long framed privacy, hardware integration and control of the user experience as its advantages.
Google’s Android push is designed to show it can bring AI deeper into the device experience while still giving users control over what Gemini can see, where it can act and when it needs confirmation.
The app automation features will roll out in waves, starting with the latest Samsung Galaxy and Google Pixel phones this summer, before expanding across more Android devices, including watches, cars, glasses and laptops later this year.
The company is also redesigning Android Auto around Gemini, turning the car into another major surface for its assistant. Android Auto is in more than 250 million cars, and Google says the new release includes its biggest maps update in a decade and Gemini-powered help with tasks like ordering dinner while driving.
Alphabet’s AI strategy has been embraced by Wall Street, which has pushed the company’s stock price up more than 140% in the past year, compared to Apple’s roughly 40% gain. Investors now want to see how Gemini can become more central to the products people use every day.
WATCH: Alphabet briefly tops Nvidia after report of $200 billion Anthropic cloud deal