Stories by James Urquhart

You can't carry everything you need from Earth, so researchers made 3-D–printed shapes with mocked-up Mars dust

Imprinted polymers capture chemicals in sweat that cause body odor

It does no better than plain soap against 20 strains of bacteria

New crystal ink, hard for fraudsters to make, shows intricate patterns when you breathe on it

Chemicals derived from plants can break down other plants into fuel

An analysis of a skeleton dug up two years ago and shown to belong to Richard III reveals that fresh fish, game birds and wine were staples of his diet

Older antibacterial coatings, when laundered, released just as many nanoparticles into the environment