About Martin Rees:
Martin John Rees, Baron Rees of Ludlow is a British cosmologist and astrophysicist. 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.
There are at least as many galaxies in our observable universe as there are stars in our galaxy.
Martin Rees