News

Tech

Bacterial batteries get a solid boost

Using microbes to harvest energy from wastewater now has a silver lining, with the metal making reliable, rechargeable batteries.

Earth

Hot spot deep beneath North America could have triggered quakes

Mantle plume might have left trail of hot rock under continental US.

Genetics

Genes for body symmetry may also control handedness

Lefties and righties can thank same genes that put hearts on left side for hand dominance, study of thousands of people’s DNA suggests.

Psychology

Bad acts spark a ‘cheater’s high’

Committing low-stakes acts of dishonesty enhances perpetrators’ moods.