Raymond Arthur Lyttleton FRS[1] (7 May 1911 – 16 May 1995) was a British mathematician and theoretical astronomer.
He was elected a Fellow of St John's College in 1937 and appointed a lecturer in mathematics in the same year (until 1959).
[2] He was Reader in Theoretical Astronomy from 1959 to 1969, after which he was appointed to a specially created professorship in the subject.
Author of numerous papers on the origin and early history of the Solar System, notably his modifications of the collision theory.
He wrote a number of books: The Comets and Their Origin (1953), The Stability of Rotating Liquid Masses (1953),[5] The Modern Universe {1956}, Rival Theories of Cosmology {1960}, Man's View of the Universe (1961), Mysteries of the Solar System (1968), The Earth and its Mountains (1982), The Gold Effect (1990).