Post Script – May 2007 Since I finished writing the Postlude, Stephen has completed his zero-gravity flight and returned to earth intact, giving rise to triumphant pictures in the media. The smile on his face as he floated in weightless liberation would have moved the stars. It certainly moved me profoundly and made me reflect what a privilege it was to travel even a short distance with him on the way to infinity.
— Travelling to Infinity (Jane Hawking), Loc. 7204–7