A new experiment pulled off the most precise measurement of an electron’s self-generated magnetic field—and the universe’s subatomic model is at stake.
It’s cellular immunity, not antibodies, that probably protects against the coronavirus’s worst effects—and scientists haven’t worked out how long it lasts.
New modeling estimates that food production could add a degree Celsius to global warming. But it also points to powerful ways to make diets more sustainable.
One million species are at risk of extinction, but a handful of charismatic creatures get all the hype. A new conservation strategy has a different focus.
Atomic weapons are complex, sensitive, and often pretty old. With testing banned, countries have to rely on good simulations to trust their weapons work.
Biological amino acids could have celestial or terrestrial roots. An experiment simulated their formation in deep space—but the mystery isn’t solved yet.
When a warm band of water develops in the Pacific, drought grips the rainforest. The Amazon, devastated by deforestation and fires, is especially vulnerable.
These tiny organoids with working immune systems mimic the function of the GI tract and could be used to study intestinal diseases and drugs to treat them.