Switzerland · Science / Astronomy. Chronological records rendered directly from the World History Database.
Zwicky and Baade coin the term "supernova" and hypothesized that they were the transition of normal stars into neutron stars, as well as the origin of cosmic rays. In support of this hypothesis, Zwicky started hunting for supernovae, and found a total of 120 by himself (and one more, SN 1963J, in concert with Paul Wild) over a stretch of 52 years
Zwicky posited that galaxy clusters could act as gravitational lenses by the previously discovered Einstein effect
Zwickys colleague Walter Baade proposed using supernovae as standard candles to estimate distances in deep space
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