Michael John Disney (born Bristol, England, 7 October 1937) is an astrophysicist. He discovered the optical component of the Crab Pulsar in 1969[1] with John Cocke. This was the first optical pulsar ever observed.
He was also one of the pioneers in the discovery of low surface brightness galaxies.
Disney was a professor at Cardiff University until his retirement in 2005. Disney is an outspoken critic of the theory of cosmic inflation.
He was the co-author with Alan Wright of the humorous (and often mis-attributed) short story 'Impure Mathematics'.
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