Sjur Refsdal
Norwegian astronomer
Died when: 73 years 30 days (876 months)Star Sign: Capricorn
Sjur Refsdal (30 December 1935 – 29 January 2009) was a Norwegian astrophysicist, born in Oslo.He is best known for his pioneer work on gravitational lensing, including the Chang-Refsdal lens.
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