https://phys.org/news/2018-06-hawking-voice-space-memorial.html

"This is a beautiful and symbolic gesture that creates a link between our father's presence on this planet, his wish to go into space and his explorations of the universe in his mind," said his daughter Lucy Hawking.

The wheelchair-bound professor, who dedicated his life's work to unravelling the mysteries of the universe and fought to overcome his disability, will be buried by the graves of fellow science greats Isaac Newton and Charles Darwin.