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LIGO Detects Most Massive Black Hole Merger to Date

news.ycombinator.com Unknown 2026-01-24 12:06:51

The LIGO-Virgo-KAGRA (LVK) Collaboration has detected the merger of the most massive black holes ever observed with gravitational waves using the US National Science Foundation (NSF)-funded LIGO observatories. The powerful merger produced a final black hole approximately 225 times the mass of our Sun. The signal, designated GW231123, was detected during the fourth observing run of the LVK network on November 23, 2023. LIGO, the Laser Interferometer Gravitational-wave Observatory, made history i

Topics: black collaboration gravitational holes ligo
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Merger of two massive black holes is one for the record books

arstechnica.com Unknown 2026-01-24 12:30:23

Physicists with the LIGO/Virgo/KAGRA collaboration have detected the gravitational wave signal (dubbed GW231123) of the most massive merger between two black holes yet observed, resulting in a new black hole that is 225 times more massive than our Sun. The results were presented at the Edoardo Amaldi Conference on Gravitational Waves in Glasgow, Scotland. The LIGO/Virgo/KAGRA collaboration searches the universe for gravitational waves produced by the mergers of black holes and neutron stars. LI

Topics: black gravitational ligo neutron virgo
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Are portable AC units worth it? My verdict after testing one during a heat wave

zdnet.com Maria Diaz 2026-01-25 03:50:51

ZDNET's key takeaways The EcoFlow Wave 3 is a portable air conditioner and heater that costs $1,299 on its own and $2,299 with the add-on battery. This is a portable air conditioner and heater that is more powerful than its predecessor It is also off-grid ready for camping, RVing, and even helping in a pinch. The Wave 3 is pricey, loud in some settings, and is not as efficient in extreme heat, direct sun, or tent camping. $1,099 at Amazon Many parts of the US are sizzling right now, unable t

Topics: air degrees ecoflow heat wave
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Arizona Governor Chastises Federal Response to ‘Devastating’ Wildfires

gizmodo.com Ellyn Lapointe 2026-01-25 08:55:27

A pair of fast-moving wildfires burning near the Grand Canyon’s North Rim destroyed a historic lodge, triggered evacuations, and forced officials to close this part of the national park for the remainder of the 2025 season on Sunday. Arizona’s governor argues the federal government is largely to blame. The Grand Canyon Lodge—the only lodging within the park’s North Rim—and a nearby water treatment facility are among 50 to 80 structures consumed by the Dragon Bravo fire, the National Park Servic

Topics: bravo canyon dragon hobbs july
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I invested $50 in Bitcoin in 2022 - here's what it's worth now after an eye-popping rally

zdnet.com David Gewirtz 2026-01-25 12:54:00

ZDNET Welcome to Hot Bitcoin Summer, 2025 Edition. It's July 14, and the cryptocurrency is on fire. Turns out that when the President of the United States is bullish on a fake currency, it takes off. Then, when the US Congress declares "crypto week," cybercurrency speculators get that warm, squishy feeling that makes them think good things are about to happen in their imaginary world of bits as bucks. Also: How AI can help you manage your finances (and what to watch out for) In honor of all

Topics: bitcoin david investment value zdnet
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Microsoft has a new trick to improve laptop battery life on Windows

theverge.com Tom Warren 2026-01-25 12:50:05

is a senior editor and author of Notepad , who has been covering all things Microsoft, PC, and tech for over 20 years. Microsoft has started testing a new feature in Windows 11 that will improve laptop battery life. A new adaptive energy saver mode will soon automatically enable or disable the main energy saver mode, based on your laptop’s workload rather than just its amount of battery life left. The energy saver mode in Windows 11 typically dims a display brightness by 30 percent, disables t

Topics: energy microsoft mode saver windows
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I invested $50 in Bitcoin in 2022 - here's what it's worth now after a record rally

zdnet.com David Gewirtz 2026-01-25 17:55:00

ZDNET Welcome to Hot Bitcoin Summer, 2025 Edition. It's July 14, and Bitcoin is on fire. Turns out that when the President of the United States is bullish on a fake currency, it takes off. Then, when the US Congress declares "crypto week," cybercurrency speculators get that warm, squishy feeling that makes them think good things are about to happen in their imaginary world of bits as bucks. In honor of all of this and because my eyes popped when I checked my own investments this morning, I'm

Topics: bitcoin david investment value zdnet
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Now Jack Dorsey has built an app to track your vitamin D

theverge.com Dominic Preston 2026-01-26 14:18:50

Sun Day is available now for iOS via TestFlight, and the code for the project is available on GitHub. The app uses location-based data to display your local UV index and sunlight hours. You can detail your skin type and clothing level, then manually toggle when you’re in and out of the sun and the app will track your rough vitamin D levels for the day, along with how long you can be in direct sunlight without burning.

Topics: app available day sun sunlight
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Black hole merger challenges our understanding of black hole formation

news.ycombinator.com Gayoung Lee 2026-01-26 06:38:20

Gravitational waves—ripples in space-time caused by violent cosmic events—travel at the speed of light in every direction, eventually fading out like ripples in water. But some events are so destructive and extreme that they create disturbances in spacetime more like powerful waves than small ripples, with enough energy to reach our own detectors here on Earth. Today, the LIGO Collaboration announced the detection of the most colossal black hole merger known to date, the final product of which

Topics: black gravitational hole ligo waves
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Astronomers Detect a Black Hole Merger That’s So Massive It Shouldn’t Exist

gizmodo.com Gayoung Lee 2026-01-26 05:01:09

Gravitational waves—ripples in space-time caused by violent cosmic events—travel at the speed of light in every direction, eventually fading out like ripples in water. But some events are so destructive and extreme that they create disturbances in spacetime more like powerful waves than small ripples, with enough energy to reach our own detectors here on Earth. Today, the LIGO Collaboration announced the detection of the most colossal black hole merger known to date, the final product of which

Topics: black gravitational hole ligo waves
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Grok team apologizes for the chatbot's 'horrific behavior' and blames 'MechaHitler' on a bad update

engadget.com Unknown 2026-01-26 00:45:20

The team behind Grok has issued a rare apology and explanation of what went wrong after X's chatbot began spewing antisemitic and pro-Nazi rhetoric earlier this week, at one point even calling itself "MechaHitler." In a statement posted on Grok's X account late Friday night, the xAI team said "we deeply apologize for the horrific behavior that many experienced" and attributed the chatbot's vile responses to a recent update that introduced "deprecated code." This code, according to the statement,

Topics: behavior grok posts responses user
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A United Nations research institute created an AI refugee avatar

techcrunch.com Anthony Ha 2026-01-26 04:03:39

In Brief A research institute connected to the United Nations has created two AI-powered avatars designed to teach people about refugee issues. 404 Media wrote about an experiment conducted by a class at the United Nations University Center for Policy Research that resulted in the creation of two AI agents or avatars — Amina, a fictional woman who fled Sudan and is living in a refugee camp in Chad, and Abdalla, a fictional soldier with the Rapid Support Forces, a paramilitary force in Sudan.

Topics: 404 abdalla ai amina avatars
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Malware found in official gravityforms plugin indicating supply chain breach

news.ycombinator.com Rafie Muhammad 2026-01-25 16:41:59

Update 7-12-2025 06:00 UTC: We have observed some activity in regard to one of the backdoors that involves a gf_api_token parameter. The IP address 193.160.101.6 tries to request, for every site, the following URLs with a spoofed user agent: /wp-content/plugins/gravityforms_2.9.12/notification.php?gf_api_token=Cx3VGSwAHkB9yzIL9Qi48IFHwKm4sQ6Te5odNtBYu6Asb9JX06KYAWmrfPtG1eP3&action=ping /wp-content/plugins/gravityforms_2.9.11.1/notification.php?gf_api_token=Cx3VGSwAHkB9yzIL9Qi48IFHwKm4sQ6Te5odNt

Topics: _request echo function gravity_forms new
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8 Foods With Microplastics Hidden in Them and How to Limit Your Consumption

cnet.com See Full Bio 2026-01-26 03:00:05

It's official: Microplastics are in more than just fish. They seem to be in everything now, even mundane things like chewing gum. UCLA researchers found that microplastics are released directly into our mouths each time we chew a piece. In addition to that, a new study published in Chemistry for Life tested 10 chewing gum brands and found every single one contained microplastics. With something as common as chewing gum becoming a delivery system for microplastics, many people are concerned abou

Topics: avoid food microplastics plastic study
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Show HN: I built a toy music controller for my 5yo with a coding agent

news.ycombinator.com Unknown 2026-01-21 12:32:36

sonoserve Simple server for my 5 year old to control his Sonos Play:1 speaker using an M5Stack CardPuter v1.1 esp32s3 device. As a kid, I'd like to restart my favorite playlist so that I can listen to my favorite music. As a kid, I'd like to play my favorite tracks. The plan to implement these user stories is to put most of the logic in a Go executable and use the cardputer as a simple hotkey controller. Ideally he will be able to turn it on, wait for a green light, then push one button to d

Topics: cardputer favorite kid like simple
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Bad Actors Are Grooming LLMs to Produce Falsehoods

news.ycombinator.com Sophia Freuden 2026-01-25 23:29:48

It’s one thing when a chatbot flunks Tower of Hanoi, as Apple notoriously illustrated earlier this month, and another when poor reasoning contributes to the mess of propaganda that threatens to overwhelm the information ecosphere. But our recent research shows exactly that. GenAI powered chatbots’ lack of reasoning can directly contribute to the nefarious effects of LLM grooming: the mass-production and duplication of false narratives online with the intent of manipulating LLM outputs. As we wil

Topics: 4o model network o3 pravda
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Malware Found in Official GravityForms Plugin Indicating Supply Chain Breach

news.ycombinator.com Rafie Muhammad 2026-01-25 22:41:59

Update 8-11-2025 06:00 UTC: We have observed some activity in regard to one of the backdoors that involves a gf_api_token parameter. The IP address 193.160.101.6 tries to request, for every site, the following URLs with a spoofed user agent: /wp-content/plugins/gravityforms_2.9.12/notification.php?gf_api_token=Cx3VGSwAHkB9yzIL9Qi48IFHwKm4sQ6Te5odNtBYu6Asb9JX06KYAWmrfPtG1eP3&action=ping /wp-content/plugins/gravityforms_2.9.11.1/notification.php?gf_api_token=Cx3VGSwAHkB9yzIL9Qi48IFHwKm4sQ6Te5odNt

Topics: _request echo function gravity_forms new
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These terrific, Verge-approved gifts are all discounted for Prime Day

theverge.com Sheena Vasani 2026-01-26 03:00:00

If your loved one often travels abroad, they’ll need a good travel adapter to power up their electronics. Epicka’s Universal Travel Adapter One is one they can use in more than 150 countries, including Australia and those in the UK and EU. It comes with one USB-C port and four standard USB-A ports, too, which should allow you to charge a range of devices at higher speeds than many of the other travel adapters on the market.

Topics: 150 adapter allow travel usb
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