Thornton, William E. (William Edgar), 1929-2016-02-262016-02-261983http://hdl.handle.net/2152.3/575Photograph of Dr. Thornton conducting research during the STS-8 mission. This photograph shows an up-close view of Dr. Thornton's face, featuring his specially marked contact lenses.Thornton, William E. (William Edgar), 1929-Medicine--History.Space flight--Physiological effect.Space medicine.Image