pulsar
/ˈpʌlˌsɑr/
noun
- A celestial object, thought to be a rapidly spinning neutron star, that emits regular pulses of radio waves or other radiation.
- Scientists study pulsars to learn more about the behavior of matter under extreme gravity.
- The regular signals from a pulsar are so precise they can be used as cosmic clocks.
- Astronomers discovered a new pulsar in the Milky Way galaxy.