BioStar has this week introduced its new BIOSTAR Arc A380 ST graphics card, designed to support the PCIe 4.0 interface and deliver a seamless and responsive performance. The Arc A380 ST graphics card offers support for DirectX 12 Ultimate and OpenGL 4.6, enabling you to have access to a suite of tools and features that […]
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In addition to the supermassive black hole at the center of our galaxy, the Milky Way also serves as home to smaller stellar black holes that form when a massive star collapses. Scientists believe there are 100 million stellar black holes in our galaxy alone, but most of them have yet to be discovered. The ones that had already been found are, on average, around 10 times the size of our sun, with the biggest one reaching 21 solar masses. Thanks to the information collected by the European Space Agency's Gaia mission, though, scientists have discovered a stellar black hole that's 33 times the size of our sun, making it the biggest one of its kind we've ever seen in our galaxy so far. It's also relatively close to our planet at around 1,926 light-years away.
Gaia BH3, as it's now called, was first noticed by a team of ESA scientists poring over data from the mission to look for anything unusual. An old giant star from the nearby Aquila constellation caught their attention with its wobbling, leading to the discovery that it was orbiting a massive black hole. BH3 was hard to find despite being so close — it's now the second closest known black hole to our planet — because it doesn't have celestial bodies close enough that could feed it matter and make it light up in X-ray telescopes. Before its discovery, we'd only found black holes of comparable size in distant galaxies.
The ESA team used data from ground-based telescopes like the European Southern Observatory to confirm the size of the newly discovered celestial body. They also published a paper with preliminary findings before they release a more detailed one in 2025, so that their peers could start studying Gaia BH3. For now, what they know is that the star orbiting it has very few elements heavier than hydrogen and helium, and since stellar pairs tend to have similar compositions, the star that collapsed to form BH3 could've been the same.
Scientists have long believed that it's the metal-poor stars that can create high-mass black holes after they collapse, because they lose less mass in their lifetimes. In other words, they'd theoretically still have a lot of materials left by the time of their death to form a massive black hole. This was apparently the first evidence we've found that links metal-poor stars with massive stellar black holes, and it's also proof that older giant stars developed differently than the newer ones we see in our galaxy.
We'll most likely see more detailed studies about binary systems and stellar black holes that use data from BH3 and its companion star in the future. The ESA believes that BH3's discovery is just the beginning, and it's going to be the focus of more investigations as we seek to unravel the mysteries of the universe.
In addition to the supermassive black hole at the center of our galaxy, the Milky Way also serves as home to smaller stellar black holes that form when a massive star collapses. Scientists believe there are 100 million stellar black holes in our galaxy alone, but most of them have yet to be discovered. The ones that had already been found are, on average, around 10 times the size of our sun, with the biggest one reaching 21 solar masses. Thanks to the information collected by the European Space Agency's Gaia mission, though, scientists have discovered a stellar black hole that's 33 times the size of our sun, making it the biggest one of its kind we've ever seen in our galaxy so far. It's also relatively close to our planet at around 1,926 light-years away.
Gaia BH3, as it's now called, was first noticed by a team of ESA scientists poring over data from the mission to look for anything unusual. An old giant star from the nearby Aquila constellation caught their attention with its wobbling, leading to the discovery that it was orbiting a massive black hole. BH3 was hard to find despite being so close — it's now the second closest known black hole to our planet — because it doesn't have celestial bodies close enough that could feed it matter and make it light up in X-ray telescopes. Before its discovery, we'd only found black holes of comparable size in distant galaxies.
The ESA team used data from ground-based telescopes like the European Southern Observatory to confirm the size of the newly discovered celestial body. They also published a paper with preliminary findings before they release a more detailed one in 2025, so that their peers could start studying Gaia BH3. For now, what they know is that the star orbiting it has very few elements heavier than hydrogen and helium, and since stellar pairs tend to have similar compositions, the star that collapsed to form BH3 could've been the same.
Scientists have long believed that it's the metal-poor stars that can create high-mass black holes after they collapse, because they lose less mass in their lifetimes. In other words, they'd theoretically still have a lot of materials left by the time of their death to form a massive black hole. This was apparently the first evidence we've found that links metal-poor stars with massive stellar black holes, and it's also proof that older giant stars developed differently than the newer ones we see in our galaxy.
We'll most likely see more detailed studies about binary systems and stellar black holes that use data from BH3 and its companion star in the future. The ESA believes that BH3's discovery is just the beginning, and it's going to be the focus of more investigations as we seek to unravel the mysteries of the universe.
Samsung Electronics, renowned for its innovation in memory technology, has once again set a benchmark in the industry with its latest development: the LPDDR5X DRAM. This new memory module is not just any DRAM; it’s the fastest in the industry, boasting a remarkable speed of up to 10.7 gigabits-per-second (Gbps). If you are wondering how […]
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The Motorola Edge 50 Series, comprising the Motorola Edge 50 Ultra, Pro, and Fusion models, is designed to harmonize innovative technology with breathtaking aesthetics. Each device is meticulously crafted to deliver a seamless blend of elegance and performance, ensuring that your mobile experience is nothing short of extraordinary. As you explore the Motorola Edge 50 […]
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Are you striving to work smarter, not harder? AI automation is your key to unlocking a new level of productivity. This guide will walk you through the essentials of personal AI automations, showcasing tools that can streamline your tasks and supercharge your efficiency. By leveraging the power of AI, you can transform your workflow and […]
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Folding smartphones have come a long way since the original Samsung Galaxy Fold came out in 2019. They’re smaller, more durable and, even if they aren’t exactly the most budget-friendly phones, they’re more affordable now, too. Whereas you may not have considered a foldable phone as your daily driver five years ago, they’re much more viable options today — and you have many more to choose from. If you’ve been toying with the idea of switching to a folding phone, or you’re ready to upgrade the foldable you already have, we at Engadget can help with your decision-making process. We've spent hundreds of hours and many days testing and reviewing the best foldable phones on the market right now — here's everything you need to know before picking one up.
Note: For this guide, we’re focusing on devices that are widely available in North America and Europe. That’s because while there are even more options for people who live in Asia (especially China), they are often difficult to buy from abroad and may not support your local carriers.
When evaluating foldables, we consider the same general criteria as we do when we’re judging the best smartphones. Devices need to have good battery life (at least a full day’s use), bright displays (peaks of at least 1,000 nits), sharp cameras and responsive performance. That said, foldable phones come in different shapes (and sizes); there are varying designs that may appeal to different types of people.
For those who prefer more compact and stylish devices, flip-style foldables resemble old-school namesakes but with flexible interior displays (typically six to seven inches diagonally) and smaller exterior screens. Alternatively, for power users and people who want to maximize mobile productivity, there are larger book-style foldables (with seven to eight-inch main displays) that can transform from a candy bar-style phone to essentially a small tablet when opened.
Aside from their displays, the biggest difference between foldable phones and more traditional handsets is durability. That’s because while some models like the Pixel Fold and Samsung’s Galaxy Z line offer IPX8 water resistance (which is good for submersions of up to five feet for 30 minutes), their flexible screens – which are largely made from plastic – present some unique challenges.
Most foldables come with factory-installed screen protectors. However, unlike regular phones, users are instructed not to remove them without assistance from approved service centers. Thankfully, Samsung does offer one free screen protector replacement for its foldables, while Google charges between $29 and $129 depending on the warranty status of your device. That said, while we can’t do long-term testing for every foldable phone on the market, after personally using the Galaxy Z Fold 3 and Galaxy Z Fold 4 each for a year, I’ve found that Samsung’s pre-installed screen protector tends to start bubbling nine to 12 months after purchase. So you’ll probably want to factor in that your foldable may need some sort of servicing after about a year unless you plan on removing the screen protector entirely (which is possible, but goes against most manufacturers' instructions).
Furthermore, foldable phone owners need to be mindful about keeping sharp objects away from their flexible displays, as rocks, keys or even pressing down very hard with a fingernail can leave permanent marks. In the event that you need to get a flexible screen serviced, you’re potentially facing a much higher repair bill when compared to a typical phone (up to $500 or more depending on the model and the severity of the damage). In short, while the ruggedness of foldable phones has improved a lot, they're still more delicate than traditional handsets, which is something you need to account for.
Apple’s latest beta release, iOS 17.5 Beta 2, is now available to developers and soon to public beta testers, heralding a suite of enhancements across its ecosystem, including iPadOS, macOS, watchOS, TVOS, HomePod OS, and Vision OS. This update not only promises improved functionality but also brings exciting new features, especially for users within the […]
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Apple is on the verge of introducing a groundbreaking lineup of M4 chips, with the M4 Extreme chip for the Mac Pro taking center stage. This development is expected to redefine the landscape of high-performance computing, setting new standards for performance and efficiency across the Mac product line. Accelerated Launch Timeline In a departure from […]
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Imagine being able to print your favorite photos, essential notes, or your daily to-do lists directly from your smartphone—anywhere, anytime. Sounds fantastic, doesn’t it? Meet the PoooliPrint, a compact thermal printer that operates without any ink. This little gadget is set to change how you print and share your memories and ideas. The PoooliPrint shines […]
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