Roger A. Broucke
Roger A . Broucke ( March 25 , 1932 – June 21 , 2005 ) was an aerospace engineer known for his solutions to the three-body problem . 
<triplet> Roger A. Broucke <subj> March 25, 1932 <obj> date of birth <subj> June 21, 2005 <obj> date of death