We're within 3 years of reaching a critical climate threshold. Can we reverse course?
A report published in June found that the world only has three years before it crosses the 1.5 C climate target. So what should we do now?
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Health
Amazfit Helio smart ring review — Accurate sleep tracking without breaking the bank
Reviews The Amazfit Helio is a great budget-friendly alternative to the Oura Ring — as long as you can look past its short battery life and limited range of sizes.
Mysterious migraines after heart surgery may finally be explained
Short-lived lesions sometimes appear in the brain following heart surgery — and now, a new trial hints that they might be linked to migraines and visual auras. More work is needed to know if they signal more serious risks, like stroke.
Animals
Why do sharks freeze when flipped upside down?
Many shark species are temporarily paralyzed when turned upside down. But what benefit does this trait have?
Why giant moa — a bird that once towered over humans — are even harder to de-extinct than dire wolves
Colossal Biosciences has announced a partnership to resurrect giant flightless birds called moa. But the company's recent dire wolf project was controversial, and moa are an even more ambitious target for de-extinction.
Human Behavior
The 'gender gap' in math is not innate — something about school drives it
A new study of schoolchildren in France suggests that boys are not innately better at math. Some aspect of schooling appears to drive the "gender gap."
Physics & Mathematics
'Paraparticles' would be a third kingdom of quantum particle
A new proposal makes the case that paraparticles — a new category of quantum particle — could be created in exotic materials.
Where do atoms come from? A physicist explains.
Almost everything on Earth is made up of atoms, but where do these fundamental building blocks come from?
'Dreadful danger for all mankind': Einstein's powerful anti-war letter goes up for auction
A fiery letter written by Albert Einstein in 1954 is going to auction. The letter details Einstein's thoughts on his part in developing atomic weapons, and hails Mahatma Gandhi as a political genius.
Chemistry
Scientists create ultra-tough copper alloy that is stronger than steel and can withstand temperatures of 1500 F
The new super-strong copper alloy can be used to build better airplanes and spacecraft.
Technology
Best sleep trackers 2025 — From smart rings to fitness watches
Buying Guide These are the best sleep trackers you can buy in every category, from smartwatches and screen-less to ring-style trackers.
