Complex sentence: He has been Astronomer Royal since 1995 and was Master of Trinity College, Cambridge from 2004 to 2012 and President of the Royal Society between 2005 and 2010.
Split into simpler sentences: He has been Astronomer Royal since 1995 and Master of Trinity College, Cambridge from 2004 to 2012. He was President of the Royal Society between 2005 and 2010.