
Tiny, Injectable Pacemaker Runs on Light and then Dissolves
This temporary pacemaker, smaller than a grain of rice, could regulate the heart less invasively
Payal Dhar (she/they) is a freelance journalist who covers science, technology and society. They write about AI, robotics, biotech, space, online communities, games and any shiny new technology that catches their eye.

Tiny, Injectable Pacemaker Runs on Light and then Dissolves
This temporary pacemaker, smaller than a grain of rice, could regulate the heart less invasively

Ancient Moon Melt Event May Explain 150-Million-Year Gap in Age Estimates
The moon may have melted 4.35 billion years ago—explaining a lunar age mystery

Wood Ink for 3D Printers Can Turn Old Scrap into New Parts
A 3D-printing ink developed from wood waste recombines its natural components back into wooden products

The Sophisticated Threads behind a Hat That Senses Traffic Lights
A new technique to make electronic fibers could help solve wearable technology’s flexibility problem

First-Ever Biorobotic Heart Helps Scientists Study Cardiac Function
A model heart made from living tissue fused with robotic muscles could help researchers see how the organ works on the inside