All Stories
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		Health & MedicineDuring an allergic response, some immune cells digest others
Mast cells lure and trap other immune cells during allergic reactions, using their compounds to increase inflammation in a process dubbed nexocytosis
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		ArchaeologyThe oldest known ritual chamber in the Middle East has been found
Engravings and other evidence suggest ancient humans attended religious ceremonies in the cave as early as 37,000 years ago.
By Bruce Bower - 			
			
		Artificial IntelligenceGenerative AI is an energy hog. Is the tech worth the environmental cost?
Generative AI and the hype around it has rung in excitement and alarm bells this year. Here’s how to consider climate, energy and AI's intersection.
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		Health & MedicineA squid-inspired medical device could reduce the need for needles
The device, which directs a liquid by mimicking squids’ high-pressure jets, could provide alternative delivery methods for injectable drugs.
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		Health & MedicineProposed time limits on anesthesia may have jeopardized patient safety
Blue Cross Blue Shield’s now rescinded plan to put time limits on anesthesia put a spotlight on a poorly understood profession.
By Sujata Gupta - 			
			
		PhysicsNotre Dame is reopening. What does that mean for its acoustics?
Researcher Brian Katz is studying the acoustics of the Paris cathedral and how it’s been altered throughout the centuries.
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		SpaceSpace missions spanned the solar system in 2024
Humankind accomplished new feats in space this year, including scooping up some of the moon’s farside and launching a probe to Jupiter’s moon Europa.
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		AstronomyAstronomers see the astrosphere of a sunlike star for the first time
Finding a bubble of hot gas blown by the stellar wind from a young star gives researchers a peek at what our sun was like when it was young.
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		Health & MedicineHow the weight loss drug tirzepatide is also helping heart failure patients
Data continue to show that tirzepatide, called Mounjaro for type 2 diabetes and Zepbound for weight loss, is safe and effective, but side effects remain.
By Meghan Rosen - 			
			
		ClimateClimate change made 2024 the hottest year on record. The heat was deadly
Heat waves fueled by climate change killed scores of people and upended daily life. Here are some of those stories.
By Carolyn Gramling and Nikk Ogasa - 			
			
		PlantsMeet a scientist tracking cactus poaching in the Atacama Desert
Botanist Pablo Guerrero has been visiting Atacama cacti all his life. They’re not adapting well to a drier climate, booming mining and plant collection.
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		AnimalsClimate stress may undermine male spiders’ romantic gift giving
Even spider love lives show an effect of climate uncertainty: Stressed males may offer a bit of silk-wrapped junk rather than a tasty insect treat.
By Susan Milius