For decades, scientists have searched for dark matter to explain what they observe in the universe. Despite massive detectors, underground labs, and space missions, no direct evidence has been found.

Whether it’s counting red blood cells under a light microscope or recording bursts of electricity as neurons fire, scientists spend a lot of time studying cells. With such a diversity in form and ...

Tech companies have touted scientific findings from AI systems. But can they truly produce bona fide advancements?

Lab-grown “reductionist replicas” of the human brain are helping scientists understand fetal development and cognitive disorders, including autism. But ethical questions loom. Brain organoids, which ...

A tech C.E.O. explains why A.I. probably won’t cure diseases anytime soon. Hint: You still need humans. By Kevin Roose Casey Newton and Rachel Cohn The leaders of the biggest A.I. labs argue that ...