| Answer | Crossword Clue |
|---|---|
| PULSARS | Celestial objects that emit radio waves |
| PULSAR | Celestial object that emits radio waves |
| pulsar | a celestial source of pulsating electromagnetic radiation (as radio waves) characterized by a short relatively constant interval (as .033 second) between pulses that is held to be a rotating neutron star |
| pulsars | a celestial source of pulsating electromagnetic radiation (as radio waves) characterized by a short relatively constant interval (as .033 second) between pulses that is held to be a rotating neutron star |
| radars | electronic device that locates unseen objects by measuring radio waves |
| radar | electronic device that locates unseen objects by measuring radio waves |
