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(WHTM) — It was a radio signal that was so strange some people wondered if it came from an alien civilization. On November 28, 1967, astronomy graduate student Jocelyn Bell noticed a regular radio pulse picked up by the newly built Interplanetary Scintillation Array of the Mullard Radio Astronomy Observatory in Cambridge England. (Bell helped […]
Jocelyn Bell Burnell discovers pulsars, Hippolyte Mège-Mouriès invents margarine, immunology pioneer Elie Metchnikoff dies. Read on!
Pulsars are the ultradense cores of gigantic stars that emit beams of radio waves in regular pulses, like cosmic lighthouses.