Se você curte o Sonic e os games clássicos dele, conheça e veja como instalar o jogo Sonic Robo Blast 2 no Linux via Flatpak.
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Se você quer exercitar a mente com um ótimo game, conheça e veja como instalar o jogo quebra-cabeça Neverbore Picross no Linux via Snap.
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Pokémon Go celebrated its 10th anniversary with a Times Square takeover in New York featuring a special event to defeat the Pokémon species Mewtwo. Nearly 2,000 people played the game together simultaneously in what organisers called one of the largest in-person Pokémon battles in history
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© Photograph: Reuters
© Photograph: Reuters
© Photograph: Reuters
Experts say cuts have hindered the response to DRC’s Ebola outbreak and resulted in ‘significant numbers’ of deaths
Elon Musk has an Ebola problem. SpaceX stock dropped precipitously after its initial public offering, and Tesla faces a wave of lawsuits. But instead of focusing on his companies, Musk has posted frequently on X about the US Agency for International Development (USAID), which he helped dismantle – or, in his words, feed into the woodchipper – last year.
“Elon’s USAID crash-out over the past week has been a thing to behold,” said Jeremy Konyndyk, a former top USAID official who oversaw the agency’s Ebola response in 2014-2015 and the president of Refugees International. “In a way, it’s helpful that Elon is doing this, because it’s putting attention back on the issue of what he did last year.”
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© Photograph: Dieudonne Dirole/EPA
© Photograph: Dieudonne Dirole/EPA
© Photograph: Dieudonne Dirole/EPA
Hidden in the gravitational waves generated by the largest black hole collision ever detected, clues retrieved by Australian National University (ANU) researchers have helped them observe how black holes drag spacetime itself along with their spin.
As two black holes collide, they merge in a massive cosmic impact, forming a larger black hole and creating ripples in spacetime called gravitational waves. In the largest black hole merger observed, GW250114, the ANU team discovered a hidden direct wave for the first time, a feature expected by general relativity and revealed in a recent paper published in Nature.
Some of the most intriguing objects in the universe, black holes have enormous power and effect on their surroundings, which scientists are still working to better understand. The gravitational waves produced by their collisions compress space as they travel, and highly sophisticated—and very precise—detectors are required to observe these waves, such as the United States’ Laser Interferometer Gravitational Wave Observatory (LIGO).
Since not even light can escape a black hole’s event horizon, gravitational waves’ ability to carry information about what lies just beyond the rim’s edge provides an important means of gaining perspective into one of a black hole’s most mysterious regions.
The most extreme black hole merger ever recorded, GW250114, came from a black hole perfectly positioned for Earth observers, allowing LIGO to capture faint signatures in the data. The team decoded the event’s direct wave, previously hidden in the data, revealing the black hole’s drag on spacetime.
In his theory of relativity, Albert Einstein described black holes as producing a “frame dragging” effect in which they pull nearby spacetime with them as they rotate, like water circling a drain. Also, according to general relativity, the region where this frame-dragging occurs, just past the event horizon’s edge, should produce gravitational radiation that creates a direct wave, imprinting information about the cosmic whirlpool surrounding the black hole.
Event horizons have been essential to theoretical physics models for decades, but very little observational data on them has been collected due to the difficulty of observing light that close to a black hole. Although not a physical object and instead merely a boundary in spacetime, general relativity posits that the event horizon’s properties, such as gravitational strength and rotational speed, should be measurable. Therefore, having access to a data source so close to the black hole’s edge, as with a direct wave, is extremely valuable to understanding our universe.
Due to the extreme nature of the event and our prime viewing location on Earth, the extremely powerful gravitational wave produced by GW250114 was the perfect opportunity to hunt for a direct wave. Despite longstanding predictions of direct waves based on general relativity, this is the first time that one has ever been detected, providing new insight into how fast the black hole is spinning and the gravitational power of the event horizon.
The researchers employed a new technique to isolate the subtle direct wave in the data from the rest of the event. This first success proves the case for direct waves and how to detect them, opening an entirely new avenue for investigating black holes. By finally detecting these waves, the team provides future researchers with an essential technique for designing new tests of General Relativity, as direct waves, horizon rotations, and surface gravity should all be linked.
Scientists currently grapple with the apparent incompatibility between general relativity, which describes our universe at the macro scale, and quantum physics, which operates at the smallest scales of matter and energy.
Some of our most essential technologies, such as GPS, lasers, quantum computers, and semiconductors, are designed according to these theories and operate perfectly despite the seeming contradiction of how these two perspectives of our universe describe physical reality.
The difficulty of reconciling these ideas is one reason scientists are interested in distant black holes. The extreme conditions of spacetime at the edge of an event horizon may offer the best clues for finally reconciling these existing theories, or for upending them altogether in favor of something that more accurately describes the physical universe at all scales.
The paper, “GW250114 Reveals Signatures of Post-Merger Black-Hole Horizon,” appeared in Nature on June 24, 2026.
Ryan Whalen covers science and technology for The Debrief. He holds an MA in History and a Master of Library and Information Science with a certificate in Data Science. He can be contacted at ryan@thedebrief.org, and follow him on Twitter @mdntwvlf.
Se você quer catalogar e jogar seus jogos retrô diretamente do SteamOS, conheça e veja como instalar o RetroDECK no Linux via Flatpak.
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Lego is amazing, and Lego Star Wars in particular. The fact that you can spend $1000 on a gigantic Death Star set is a clear sign it's not just for kids.
But there's a catch; Lego retires sets, meaning that, unless you're willing to pay silly prices on eBay, they're forever out of your reach. Oh, sure, Lego might need space for new sets, and stores likewise, but that's no excuse to rob builders of the best Lego Star Wars sets, especially with Star Wars' 50th anniversary next year.
I've rounded up the best deals on retired or retiring Lego sets. Some of these sets have been this price before Prime Day but don't count on them sticking around much longer.
Save $24 on this Lego model of the first ship you see in Star Wars, pursued by a Star Destroyer right after the opening crawl. View Deal
Save $42 on this Lego Star Wars Guard Gunship, a particularly cool variant of the Republic Gunship.View Deal
Get $10 off this Attack of the Clones troop carrier, which was bumped out by the Venator in Return of the Sith. View Deal
This isn't reduced but it's such an awesome set, a mini-sized model of the original trilogy's biggest vessel, you need this on your shelves. View Deal
Save 20% on the Galactic Empire's heavy-hitter, the Tie Bomber, complete with three minifigures. View Deal
Save $12.00 on this N-1 Starfighter, The Mandalorian's second favorite ship. It's been replaced by the far pricier UCS N-1 set but you can still grab this if you're fast. View Deal
Get $10 off the helmet worn by Captain Rex, a Clone Commander who managed to outlive many of his manufactured brethren. View Deal
This Clone Wars walker is another set that's not reduced but it's such a brilliant, play-friendly build that Lego should be ashamed for retiring it. View Deal
Se você curte o game BattleTech e quer se divertir no PC, conheça e veja como instalar o jogo MegaMek no Linux via Flatpak.
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Se você quer se divertir em um game de sobrevivência, conheça e veja como instalar o jogo Survivor Reborn no Linux via Snap.
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Se você quer um game de paciência do Windows da era de 2001, conheça e veja como instalar o jogo Scorpion cards no Linux via Snap.
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Se você quer se divertir com um bom RPG no terminal, conheça e veja como instalar o jogo Omega no Linux via Snap.
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Star Wars' Clone Wars-era Republic Gunship may not be a miracle of practicaliy but I think it's cool as heck and that alone is reason enough to pick up this Lego Star Wars Coruscant Guard Gunship, $42 off for Amazon Prime Day.
Save $42 on this Lego Star Wars Coruscant Gunship set
The other reason? This set has already been retired by Lego meaning that not only are you saving big, this could be your last chance to buy the Lego Star Wars Coruscant Guard Gunship, before scalpers start selling it for silly money on eBay.
On top of looking seriously imposing, this Lego set has major play potential. You can swoosh it round the living room, loaded it up with the five included mini figures and accidentally drop Chancellor Palpatine because there's something off about that guy.
If this set isn't to your taste (maybe you're one of those evil Separatists), we've rounded up the Best Lego Star Wars sets. And don't forget to check out our other Prime Day deals.
Save $42 on this Lego Star Wars Guard Gunship, a troop-carrier which, on Coruscant, has been commandeered for Chancellor Palpatine's non-sinister agenda. View Deal
This is a real Prime Day deal double-whammy. Not only is this Lego Star Wars Coruscant Guard Gunship $42 off, the cheapest it has ever been, but as a retired set this could be your last chance to own it. Without paying silly money to eBay scalpers, that is; it's already sold out on Lego's website.
Not only does this set look good on a shelf, but it has got real potential, with opening and closing doors, firing missiles and a special handle to swoosh it around your living room!
It also boasts five minifigures: Three Clone Troopers, Chancellor Palpatine and Senator Padme Amidala. Go on, Padme, give Palpatine a push. It'll save you a lot of trouble in the long run.
If you love the Clone Wars era of Star Wars, this is a superb offer but you'll have to move fast.
Key features: 1083 pieces, builder's age 9+, 27.5 × 5.5 × 14.5 × 16 in. / 15 × 37 × 41 cm size
Product launched: September 2023
Price history: We've seen the price drop a little, but this is the lowest it's ever been and likely your last chance to buy it.
Price comparison: Amazon: $98
Reviews consensus: We loved the UCS Lego Star Wars Republic gunship, and this smaller model is also extremely cool, albeit with just five figures. Its Amazon reviews are near unanimous; few complain about the price tag and this price cut addresses that.
✅ Buy it if: You want a brilliant, play-friendly set to go with your other Clone Wars Lego sets.
❌ Don't buy it if: You're not a fan of the Clone Wars era. Instead, consider something like this Lego Star Destroyer, also reduced for Prime Day.
Check out our other guides to the best telescopes, binoculars, cameras, star projectors, drones, lego and much more.
Are you scratching your head, wondering what to buy for a child? Our expert Tantse recommends this Astronaut Galaxy Projector and right now, during Prime Day, it's just $25.
Enjoy stunning, starry displays with this Astronaut Galaxy Projector, now $25 at Amazon
Faced with buying a present for her nephews, and having been suitably impressed when she reviewed this Astronaut Galaxy Projector, Tantse (our long-time star projector reviewer), settled on this gift and she's had no complaints!
We rank it one of the best star projectors and best star projectors for kids because, despite its budget price tag, it creates some amazing, room-filling displays that'll leave children wide-eyed. Adults are just as likely to be delighted, too!
Looking for more savings? Check out our other Prime Day deals.
Save 17% on this compact but powerful star projector, which is capable of transforming children's bedrooms with its starry displays. View Deal
As challenges go, one of the biggest trials in life is buying a gift for someone else's child. Assuming you like their respective adults, a drum set or a Nerf gun is right out. Fortunately, our expert Tantse Walter has the answer, with this impressive but pocket-friendly Astronaut Galaxy Projector.
Despite the name, this cool projector, which Tantse gifted to her nephews, projects both stars and galaxies. It's not scientifically accurate, but it punches well above its price tag.
In Tantse's review of the Astronaut Galaxy Projector called it "a well-made novelty star projector that every kid, or space fan, will love to have in their bedroom," and even if the kids in question aren't skywatchers, it could well kindle their interest in the cosmos.
With its remote control, customizable displays and 45-90 minutes sleep timer, adults will find it a handy meditation tool or relaxation tool too. At $25, this Astronaut Galaxy star projector is a superb gift that can transform any room.
Key features: Remote control, projects light shows, sleep timer, compact
Price history: This model tends to retail for between $29.99 and $34.99. We've sometimes seen it dip cheaper, though there are also several versions of this projector.
Price comparison: Amazon: $25
Reviews consensus: In our review of the Astronaut Star Projector, expert Tantse awarded it four stars out of five and Amazon purchasers rank it even higher.
Space: ★★★★
Featured in guides: Best star projectors, best star projectors for kids
✅ Buy it if: You want a star projector that, despite its novelty appearance, offers excellent performance and won't cost you a fortune.
❌ Don't buy it if: You want scientific accuracy because, as impressive as they are, this projector's displays don't match the night sky. Instead, consider the Sega Toys Homestar Flux.
Check out our other guides to the best telescopes, binoculars, cameras, star projectors, drones, lego and much more.
Plague is often linked to medieval Europe, crowded cities, and rats carrying infected fleas. However, a new study published in the journal Nature shows that the disease was already killing people thousands of years earlier. Researchers have discovered that plague caused deadly outbreaks among hunter-gatherers in Siberia about 5,500 years ago, long before cities and […]
The post Ancient plague was already deadly 5,500 years ago, study reveals appeared first on Knowridge Science Report.
Com 327.906 peças, mais de 9,400 horas de montagem e 111 km/h de velocidade máxima. Conheça o carro de Lego mais rápido de sempre, o Koenigsegg Sadair’s Spear, que foi construído à escala real, para celebrar o lançamento do novo conjunto 1/8 com 4.104 peças.
The post Conheça o Koenigsegg feito com 327.906 peças de Lego que envergonha alguns carros a sério appeared first on Tek Notícias.
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