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First 'perovskite camera' can see inside the human body

Physicians rely on nuclear medicine scans, like SPECT scans, to watch the heart pump, track blood flow and detect diseases hidden deep inside the body. But today’s scanners depend on expensive detectors that are difficult to make. Now, scientists led by Northwestern University and Soochow University in China have built the first perovskite-based detector that can capture individual gamma rays for SPECT imaging with record-breaking precision. The new tool could make common types of nuclear medic

New York’s ‘Big Bang Machine’ Passes Critical First Test

sPHENIX is a next-generation particle detector that probes the mysterious, soupy form of the early universe. We know very little about the first few microseconds after the Big Bang. We have theories, most of which we’re still double- and triple-checking to see if they actually make scientific sense. The research process can seem tedious at times, but a newcomer from Long Island offers promising advances in our quest to understand how our universe came to be. In a recent paper for the Journal o

China Just Took the Hunt for Elusive ‘Ghost Particles’ to the Next Level

The elusive neutrino—a near massless particle with no charge—tests the limits of physicists’ creativity, but sometimes the answer is just to go big. And the biggest detector of them all has finally joined the search for the so-called “ghost particles.” After a decade of construction, China’s Jiangmen Underground Neutrino Observatory (JUNO) officially began taking data on August 26. The giant, spherical detector lies about 2,300 feet (700 meters) underground and collects antineutrino signals fro

This Giant Sphere Just Joined the Hunt for ‘Ghost Particles’

The elusive neutrino—a near massless particle with no charge—tests the limits of physicists’ creativity, but sometimes the answer is just to go big. And the biggest detector of them all has finally joined the search for the so-called “ghost particles.” After a decade of construction, China’s Jiangmen Underground Neutrino Observatory (JUNO) officially began taking data on August 26. The giant, spherical detector lies about 2,300 feet (700 meters) underground and collects antineutrino signals fro

Modern Cars Wreak Havoc on Radar Detectors

Get The Drive’s daily newsletter The latest car news, reviews, and features. Email address Sign Up Thank you! Terms of Service & Privacy Policy. Escort Radar, one of the big brands in the radar detection biz, has been under some scrutiny this year as customers and reviewers reported suboptimal performance on the $800 Redline 360c—Escort’s flagship. Today, it’s dropping a big firmware update to address those complaints. I’ve now had the chance to test this new firmware and speak with somebody at

Facebook and Instagram may be down for some users

Meta is apparently experiencing some capacity of server issues today. According to Downdetector, user reports of Facebook and Instagram not refreshing have spiked recently. Meta hasn’t acknowledged any outage on its system status page yet, and Facebook appears to be loading fine here. But if you’re having issues loading either app today, Downdetector shows that you’re not alone. ❗️Can't refresh your feed or messages on Facebook and Instagram? You're not alone! Downdetector users have been

Reddit is back online after a brief outage

If you were having trouble viewing Reddit today, you weren't alone. Downdetector showed a spike in outages and problems at the site. Reddit acknowledged the problem on Wednesday. At 12:38PM ET, it said the situation had been resolved. Reddit told Engadget that an update was the culprit. "An update we made caused some instability," a company spokesperson said. "We reverted and are seeing Reddit ramp back up." As to what that update was, we don't yet know, but it was probably a standard tweak to

Reddit is back online after outage

If you were having trouble viewing Reddit today, you weren't alone. Downdetector showed a spike in outages and problems at the site. Reddit acknowledged the problem on Wednesday. At 12:38PM ET, it said the situation had been resolved. Reddit told Engadget that an update was the culprit. "An update we made caused some instability," a company spokesperson said. "We reverted and are seeing Reddit ramp back up." If you tried to visit Reddit this morning, you likely saw a message reading, "Server e

Record-Setting Dark Matter Detector Comes Up Empty—and That’s Good News

WIMPs (weakly interacting massive particles) are one of the most serious contenders for dark matter—the “missing” mass supposedly constituting 85% of our universe. Given its elusiveness, dark matter tests the patience and creativity of physicists. But the latest results from LUX-ZEPLIN (LZ), the South Dakota-based detector, may have brought scientists a small step closer to catching WIMPs in action. In a recent Physical Review Letters paper, scientists analyzed 280 days’ worth of data from LUX-

8 Best Water Leak Detectors (2025), Tested and Reviewed

Other Leak Detectors We Like Photograph: Simon Hill First Alert L1 Wi-Fi Water Leak and Freeze Detector for $64: This large flood sensor, branded First Alert, works with First Alert or Resideo apps and accessories. It sends push notifications and emails to alert you to any leak and sports a 100-decibel alarm that you can stop with the side button. The sensor was relatively slow to alert in all my tests, and the push notifications only came through when my phone was connected to Wi-Fi. The 5-fo

Denmark's Archaeology Experiment Is Paying Off in Gold and Knowledge

Ole Ginnerup Schytz, an engineer in Denmark’s sleepy Vindelev agricultural area, had used a metal detector only a handful of times when he found a bent clump of metal in a friend’s barley field. He figured it was the lid from a container of tinned fish and tossed it in his junk bag with the other bits of farm trash that had set his metal detector beeping: rusty nails, screws, scrap iron. A few paces away he dug up another shiny circle. Someone had clearly enjoyed a lot of tinned fish here—into t

Radio pulses detected coming from ice in Antarctica

Once detected and traced to their source, these particles can reveal more about cosmic events than even the most high-powered telescopes, Wissel added, as the particles can travel undisturbed and almost as fast as the speed of light, giving clues about cosmic events that happened lightyears away. Wissel and teams of researchers around the world have been working to design and build special detectors to capture sensitive neutrino signals, even in relatively small amounts. Even one small signal f

Google Cloud outages: Spotify, Discord, Snapchat and more were down for hours

Google Cloud experienced outages today that led to disruptions for many online services. Reports of issues for Google products and others began around 2 PM ET. The company was able to restore function to its own apps, but several other businesses have continued to experience problems for some users. In an update at 4:16PM ET, Google said, "We have identified the root cause and applied appropriate mitigations. Our infrastructure has recovered in all regions except us-central1. Google Cloud produ

PSA: Widespread internet outage affects Spotify, Google, Discord, Cloudflare, more [U]

If you’re having trouble accessing multiple major services today, you’re definitely not alone. Reports from users, and confirmed by data from Downdetector, indicate a widespread internet outage is currently impacting a wide range of popular platforms and infrastructure providers. Among the affected services: Spotify Google services (including Google Cloud, Meet, Drive, and Nest) Discord CharacterAI Snapchat Cloudflare Pokemon TCG Live FuboTV Etsy Downdetector has logged massive spikes

PSA: Widespread internet outage affects Spotify, Google, Discord, AWS, Cloudflare, more

If you’re having trouble accessing multiple major services today, you’re definitely not alone. Reports from users, and confirmed by data from Downdetector, indicate a widespread internet outage is currently impacting a wide range of popular platforms and infrastructure providers. Among the affected services: Spotify Google services (including Google Cloud, Meet, Drive, and Nest) Discord CharacterAI Amazon Web Services (AWS) Snapchat Cloudflare Pokemon TCG Live FuboTV Etsy Downdetecto