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Vicki Lensing was born on 1957-06-21.
Kees Lensing was born on 1978-06-01.
Gravitational lensing is the bending of light around a massive object due to gravity.
Amanda Lensing was born on December 2, 1980, in Iowa City, Iowa, USA.
Gravitational lensing creates two images because light from a given source is being bent around both sides of the object doing the lensing.