German Chancellor and leader of the Christian Democratic Union (CDU) Angela Merkel gestures during the second day of the CDU party congress in Karlsruhe, Germany December 15, 2015. REUTERS/Kai Pfaffenbach TPX IMAGES OF THE DAY - RTX1YQ8Q
epa03682858 British physicist, Sir Stephen Hawking, speaks during the launch of a report by the charity Breathe On UK, at Portcullis House in London, Britain, 30 April 2013.
Breathe On UK is a charity that supports families of children on long-term ventilation. EPA/FACUNDO ARRIZABALAGA
