How to catch the shooting stars of spring’s first meteor shower, the Lyrids

When the Lyrid meteor shower reaches its peak, it will be spring’s first chance to see shooting stars. The Lyrids have surprised skygazers in the past with as many as 100 meteors per hour, but...

Artificial skin from hydrogels

Growing cells in the laboratory is an art that humans have mastered decades ago. Recreating entire three-dimensional tissues is much more challenging. Researchers are developing a new hydrogel-based material...

Tiny, soft robot flexes its potential as a lifesaver

A tiny, soft, flexible robot that can crawl through earthquake rubble to find trapped victims or travel inside the human body to deliver medicine may seem like science fiction, but an international team led by...