Lockheed Martin has named Robert Cleave its new president of Lockheed Martin Commercial Launch Services (LMCLS) effective May 1. 
   Cleave succeeds Jack Zivic who is retiring at the end of April following 28 years of service with the company.
   Cleave will be responsible for expanding the company’s launch services business encompassing sales, marketing, contracting and mission management for the commercial Atlas and Athena family of launch vehicles. He will report directly to John Karas, vice president and general manager of Human Space Flight at Lockheed Martin Space Systems.