Crossword clues for the word: PULSARS The word PULSARS has appeared as an answer to at least 12 crossword clues on different crossword puzzles. Crossword clues for PULSARS Showing 1 to 12 of 12 results Clue(s) "Small, dense stars" "Stars that exhibit the ""lighthouse effect""" Antony Hewish discovery of 1967 Celestial objects that emit radio waves Celestial radio sources Emitters of cosmic rays Flashers in space Highly magnetic celestial bodies Other senders from space. Radiation-emitting stars Radio wave emitters Rotating neutron stars