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Scientists discover the deep sleep circuit that builds muscle, burns fat, and boosts the brain

A good night’s sleep does far more than leave you feeling refreshed. It also triggers the release of growth hormone, a key hormone that helps build muscle and bone, burn fat, and support healthy growth. That’s why athletes value quality…

How Your Smartwatch And AI Might Detect Early Signs Of Illness

Long before you notice the symptoms of, say, the flu or COVID-19, your body starts changing in subtle ways. Taken individually, changes to your skin temperature, resting heart rate or respiratory patterns may not mean much. But when combined and…

White House deletes thousands of web pages about energy conservation as heatwave slams US

The US Department of Energy reportedly deleted about 6,000 pages related to energy conservation as a historic heatwave tears across the country. The deletion was suspiciously timed, following Republican outrage over Mayor Zohran Mamdani asking New Yorkers to help reduce…

New Google commercial imagines a Declaration of Independence written with help from AI

Two hundred and fifty years after the signing of the Declaration of Independence, a new commercial from Google asks: What if the Founding Fathers had access to Google Workspace? With the tagline “Group project, but make it 1776,” the ad…

15 Best MagSafe Wireless Chargers (2026): Power Banks, Stands, Pads, and Travel Chargers

More Good MagSafe and Qi2 Chargers Here are a few other MagSafe wireless chargers we have tested that didn’t quite manage to earn a place above. Photograph: Simon Hill Mous Dual Charging Station for $100: This dual charger from Mous…

31 alien-like marine species discovered off the coast of Brazil

Get the Popular Science daily newsletter Breakthroughs, discoveries, and DIY tips sent six days a week. By signing up, you confirm you are 16+, will receive newsletters and promotional content and agree to our Terms of Use and acknowledge the…

Scientists discover a protein switch that burns fat and blocks new fat cells

Modern weight loss medications have transformed obesity treatment, helping many people lose significant amounts of weight. But these drugs often come with an important drawback: They can also reduce muscle mass. Now, researchers have uncovered a biological mechanism that may…

A 10-Year Sky Survey Begins Filming A ‘Cosmic Movie,’ Cyborg Cockroaches Go For A Dive And More Science Stories

This week marked the beginning of the Vera C. Rubin Observatory’s Legacy Survey of Space and Time, a massive effort to observe the sky that comes more than two decades in the making. It could help us to better understand…

NASA launched an emergency mission to stop the Swift Observatory from crashing to Earth

The Swift Observatory was launched in 2004, but recent solar storms have pushed its orbit lower, and it’s in danger of burning up in Earth’s atmosphere as soon as this year. To try and stave off its demise, NASA has…

Midjourney wants Hollywood studios to reveal the details of their AI usage

As part of an ongoing legal dispute with three Hollywood studios, AI startup Midjourney is seeking to compel those studios to reveal how they use AI themselves. Disney and Universal sued Midjourney for alleged copyright infringement last year, noting that…