"On my 93rd birthday and the day I will be honoured by Living Legends of Aviation I am pleased to announce that my long-time love Dr Anca Faur and I have tied the knot," he tweeted.Dr Faur, 63, who has a PhD in chemical engineering, is the executive vice president of Mr Aldrin's company, Buzz Aldrin Ventures.In 1969, an estimated 600 million people witnessed Neil Armstrong and Buzz Aldrin become the first people to walk on the moon as part of the Apollo 11 mission.Almost overnight, Mr Aldrin became one of the most famous names on the planet - the ensuing months was a blur of media appearances, photo opportunities and after-dinner speeches.Before the famous moon landing, Mr Aldrin piloted fighter planes on US Air Force combat missions during the Korea war."