Physical Science How can your smartphone make water safe to drink? Scientists developed a small device and an app which can be used with a smartphone to kill harmful bacteria in water.
Biology How does a plant make an antimalarial medicine? Scientists wanted to understand how sweet wormwood produces artemisinin – a chemical that kills malaria-causing parasites.
Physical Science How can dust make planets more suitable for life? Astronomers looking for habitable planets outside the Solar System discovered that dust might play an important role.