Topology paves the way for new LCDs

By showing that tiny particles injected into a liquid crystal medium behave in accordance with mathematical theorems, physicists at the University of Colorado Boulder say they've set the stage for a host of new materials with properties that don't exist in nature.

Grand Canyon formed during age of dinosaurs

The Grand Canyon is dramatic enough today - but imagine it with roaming dinosaurs. It now appears that it's been around for 70 million years, a good 65 million longer than believed.

Could these strange new microbes survive on Mars?

Scientists have discovered new types of organism living in one of the most inhospitable soils in the world - raising hopes that something similar could survive on Mars.