Stephen Hawking's voice has been beamed into a black hole following the internment of his ashes at London's Westminster Abbey.
A message, recorded by the British physicist and set to music by Greek composer Vangelis, speaks about the importance of peace and hope.
It was sent by the European Space Agency towards the nearest black hole, 1A 0620-00, which lives in a binary system with a fairly ordinary orange dwarf star, his daughter Lucy Hawking said in a statement.
"It is a message of peace and hope, about unity and the need for us to live together in harmony on this planet," she said.
The wheelchair-bound scientist who died in March aged 76 after a lifetime spent probing the origins of the universe and mysteries of black holes, suffered from motor neurone disease which forced him to use an electronic voice synthesiser.
His ashes were interred between major British scientific figures Isaac Newton and Charles Darwin at the abbey, a 1,000-year-old location made famous worldwide for generations of royal coronations, weddings and funerals.
Members of the public from over 100 countries, selected by a ballot, joined friends and family for the service which included a reading from actor Benedict Cumberbatch, who played Hawking in a 2004 BBC film.
Hawking will rest between Newton, who formulated the law of universal gravitation and laid the foundations of modern mathematics and Darwin, whose theory of evolution was one of the most far-reaching scientific breakthroughs of all time.
Interment inside Westminster Abbey is a rarely bestowed honour. The most recent burials of scientists there were those of Ernest Rutherford, a pioneer of nuclear physics, in 1937, and of Joseph John Thomson, who discovered electrons, in 1940.
Around 25,000 people applied to attend the Service of Thanksgiving, according to the Hawking family.
Additional reporting by agencies
