All Stories
- 			 Paleontology PaleontologySloths once came in a dizzying array of sizes. Here’s whyA new fossil and DNA analysis traces how dozens of sloth species responded to climate shifts and humans. Just two small tree-dwelling sloths remain today. 
- 			 Health & Medicine Health & MedicineIt’s tricky to transplant a bladder. How surgeons finally did itThe person who received the bladder is doing well, and the successful transplant could offer hope to thousands of people with bladder dysfunction. By Payal Dhar
- 			 Climate ClimatePenguin poop gives Antarctic cloud formation a boostPenguin poop provides ammonia for cloud formation in coastal Antarctica, potentially helping to mitigate the impacts of climate change in the region. 
- 			 Science & Society Science & SocietyTrump’s ‘Golden Dome’ plan has a major obstacle: PhysicsScientists suggest the missile defense plan will face big hurdles, especially given its projected timeline and cost. 
- 			 Health & Medicine Health & MedicineDon’t wait until menopause to strengthen your bonesScreening for osteoporosis is recommended at age 65, but experts say women should be proactive about bone health long before that. 
- 			 Earth EarthGamma rays flared as this lightning bolt formedThunderstorms are known to generate gamma rays, the highest energy radiation on Earth. But pinning the burst to a specific bolt is new. By Sid Perkins
- 			 Artificial Intelligence Artificial IntelligenceA new AI-based weather tool surpasses current forecastsThe AI tool used machine learning to outperform current weather simulations, offering faster, cheaper, more accurate forecasts. 
- 			 Physics PhysicsScientists used a levitating magnet to hunt for dark matterThe quantum-based magnet technique could allow scientists to spot ultralight dark matter particles. 
- 			 Health & Medicine Health & MedicineFDA significantly limits access to COVID-19 vaccinesThe new framework unveiled May 20 says new COVID-19 shots should go only to those ages 65 and up or with underlying medical conditions. 
- 			 Health & Medicine Health & MedicineBiden’s prostate cancer is incurable, but it is treatableExperts explain the science behind Biden's advanced prostate cancer diagnosis, including how common it is and what treatments are available. By Meghan Rosen
- 			 Quantum Physics Quantum PhysicsThe unsung women of quantum physics get their dueThe new book, Women in the History of Quantum Physics, spotlights the oft-forgotten contributions of women scientists in the field. 
- 			 Quantum Physics Quantum PhysicsAs quantum mechanics turns 100, a new revolution is under wayWith greater control over the quantum realm, physicists are poised to make major leaps in quantum computing, quantum gravity and more.