Buzz Aldrin Files for Divorce from Third Wife
06/16/2011 AT 05:40 PM EDT
Aldrin, 81, and his third wife, Lois Driggs Cannon, have been married for 23 years. The couple tied the knot on Valentine's Day, 1988. They have no children together.
He cites "irreconcilable difference" in his divorce petition filed in L.A. County Superior Court on Wednesday. According to the papers, the couple separated on Tuesday.
Aldrin competed on Dancing with the Stars last year.