Complex sentence: In 1988, Cowan became a senior fellow emeritus at Los Alamos, a member of a group of six longtime Los Alamos employees rewarded with research positions free from administrative chores that would also advise the laboratory director on policy issues.
Split into simpler sentences: In 1988, Cowan became a senior fellow emeritus at Los Alamos. A member of a group of six longtime Los Alamos employees rewarded with research positions free from administrative chores that would also advise the laboratory director on policy issues.