The heart is a biological wonder. It beats roughly 2.5 billion times in an average lifetime. Unlike skin cells, which regularly die off and regrow, a healthy adult heart hardly regenerates at all—even ...

Elon Musk has long said settling Mars is SpaceX’s raison d'être, but the world’s richest man has now pivoted his attention to the moon. The company is targeting an uncrewed lunar landing in March 2027 ...

AI has aced medical exams, but there's a wide gap between tests and the real world. A new study suggests the divide is closing. Emergency doctors make high-stakes decisions in fast-paced, often ...

The bacteria grew, thrived, and divided for hundreds of generations. But they were unlike any other living creatures on Earth. These synthetic cells, called Ec19, were the first to have had one ...

I admit, since middle school, I’ve spent most of my downtime immersed in video games. There are the quintessential epics: Resident Evil, Final Fantasy, World of Warcraft, and Fortnite. And then there ...

Our bodies are constantly breaking down. Over time, their built-in repair mechanisms also fail. Knee cartilage grinds away. Hip joints no longer support weight. Treatments for breast cancer and other ...

Humanoid robots are Silicon Valley’s latest obsession, but real-world performance has lagged the hype. That may be starting to change, however, after a robot beat the human record for a half marathon ...

The project explores how life adapts to extreme environments—and hopes to inspire new drugs or even treatments to aid space travel. We’ve only scratched the surface of what thrives in the deepest ...

Our hands are works of art. A rigid skeleton provides structure. Muscles adjust to different weights. Our skin, embedded with touch, pressure, and temperature sensors, provides immediate feedback on ...

Our cells are like the ultimate soft robots. Made mostly of a liquid interior wrapped inside a fatty shell, they split, stretch, roam, and squeeze into every nook and cranny of the body. Actual robots ...

A new study says AI agents can create shared language conventions. Learning how this happens could help us better manage agents in the real world. We all live by unspoken societal rules. Greeting your ...

As its whiskers flitter, the mouse’s brain sparks with activity. A tiny implant records the electrical chatter and beams it to a nearby computer. Smaller than a grain of salt, the implant is powered ...