(1924–)
An English radio astronomer who, in collaboration with Martin
Ryle, published the first four
Cambridge Radiosource Catalogues. In the 1960s he also developed, at Cambridge's Mullard Observatory, a special radio telescope that was sensitive to rapid fluctuations (scintillation) in radio sources due to disturbances in ionized gas in Earth's atmosphere, within the solar system, and in interstellar space. Using this instrument, his student Jocelyn Bell Burnell discovered the first
pulsar in 1967. For this discovery and his other work on radio astronomy, Hewish shared with Ryle the 1974 Nobel Prize in physics.