March 14th, 2018 - 12:30 GMT Watch: Stephen Hawking's Final Appearance in Abu Dhabi In January 2018, Stephen Hawking made a video address at Abu Dhabi sustainability week to discuss the "Butterfly Effect" Read more
December 10th, 2013 - 09:33 GMT Another brick in the wall, another petition in the bank? Roger Waters call for boycotting Israel
