Chemistry

Our political attitudes may be written in our DNA

Xenon was hidden inside our planet by an early meteor bombardment—and a second assault placed another form in our atmosphere

The familiar H₂O molecule may take a strange, ringlike form

A fizzy science project from Science Buddies

When a species of nightshade is injured by hungry beetles, it produces sugary nectar at the wound site. The nectar attracts ants that then keep the beetles at bay.  

A tasty science project from Science Buddies

Oil firms might pay to use CO₂ emissions from power plants, but low petroleum prices could doom the effort

Millions of tiny graphene robots can propel themselves through wastewater and scavenge heavy metals. Christopher Intagliata reports.

In addition to three-dimensional control, a new printer builds things from several different materials, not just one

Researchers have uncovered the chemistry that makes the urine of bearcats smell like freshly cooked popcorn.

A partly cloudy experiment from Science Buddies

Scientists have created hollow molecules to trap toxic gases such as sarin