Notebook
- Chemistry
After 75 years, plutonium is still NASA’s fuel of choice
On the 75th anniversary of the discovery of plutonium, the radioactive element is still not a major source of fuel for nuclear power plants in the United States.
- Planetary Science
120 seconds in Pluto’s shadow
A 747 outfitted with a telescope worked with New Horizons to reveal details about Pluto’s atmosphere.
- Agriculture
Plants trick bacteria into attacking too soon
Scientists have discovered that a plant compound interferes with bacterial communication.
- Tech
Pill measures gut gas
A gas-sensing ingestible capsule tested in pigs could someday help doctors assess people’s gastrointestinal health.
