Using a tabletop laser, University of Rochester optical scientists have turned pure aluminium, gold. And blue. And grey. And many other colours...

Engineers are creating a low-power collision detector that mimics the locust avoidance response and could help robots, drones and even self-driving cars avoid collisions. 

A mixed bag of events this week might have some readers of The Engineer wondering if they are suffering from déjà vu.

Scientists in Singapore and the US have developed a method of predicting the formation of scar tissue with nanoparticles coated with strands of DNA.

UK team develops ultra-fast laser capable of delivering data rates needed for the next decade.