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 ...

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 ...

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 ...

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 ...

As robots move into the real world, they’ll need to become more adaptable. But right now, it’s hard to transfer skills from one machine to another. A new system makes this possible. One of the most ...

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 ...

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 ...

Scientists just unveiled the world’s tiniest pacemaker. Smaller than a grain of rice and controlled by light shone through the skin, the pacemaker generates power and squeezes the heart’s muscles ...

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 ...

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 ...

Despite their brief history, computers and AI have fundamentally changed what we see, what we know, and what we do. Little is as important for the world’s future and our own lives as how this history ...