Gerald S. Hawkins
Contributor
Astronomer, Smithsonian Astrophysical Observatory, Cambridge, Massachusetts, 1962β74. Author of Mindsteps to the Cosmos and others.
Primary Contributions (1)
James Bradley was an English astronomer who in 1728 announced his discovery of the aberration of starlight, an apparent slight change in the positions of stars caused by the yearly motion of the Earth. That finding provided the first direct evidence for the revolution of the Earth around the Sun.β¦
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