An audacious trial will test psilocybin in people over age sixty to see if increases plasticity in healthy aging brains. A handful of healthy senior citizens are about to trip on psilocybin—to see if ...

Switches drive nearly every machine. A new one, made of folded DNA, does the same work at the scale of molecules. Scientists have long dreamed of developing nanoscale machines, but building reliable ...

Imagine if one company could become the railroad, electric utility, and cloud-computing provider of the emerging space economy. That potential fueled excitement around the long-anticipated initial ...

"According to Subquadratic, it has developed a new kind of LLM, called SubQ, that is faster and cheaper and uses a lot less energy than any other model on the market. The company also claims that SubQ ...

A tiny robot developed by Japan's space agency operated autonomously on the moon for more than 100 minutes and sent a series of images back to Earth. Exploring the moon’s surface lays crucial ...

While we still can't explain how AI works, algorithms are rapidly learning what makes us tick. And the gap is widening. AI is becoming more powerful, and mysterious. Despite years of work on ...

"The goal, Reardon tells me, is to build 'a synthetic artificial intelligence brain that runs on 50 watts or less.' It should adapt to its conditions, be as nimble as a human mind, and burn a tiny ...

In May, evolutionary biologist Richard Dawkins wrote an op-ed suggesting AI chatbot Claude may be conscious. Dawkins did not express certainty that Claude is conscious. But he pointed out that ...

Scientists are exploring new algorithms, hardware, and computing methods to lower AI’s power demands. Strategic siting of data centers and other steps to increase green energy use are also key. As I ...

New drugs are taking on the slippery molecular switches that fuel deadly cancers—and AI is speeding up the hunt. For decades, a handful of molecular switches has haunted the nightmares of cancer ...

"'All societal wealth is driven by invention,' [Bezos] said in an interview with The New York Times. 'Six thousand years ago, somebody invented the plow, and we all got wealthier. Then, much later, ...

A planetary defense system would blunt solar storms with hundreds of tons of gas. Emerging heavy-lift rockets could deploy it in under two months. Extreme space weather could wreak havoc on the ...