Hawking died aged 76 in March after a lifetime spent probing the origins of the universe.
He dedicated his life to probing how time began and the mysteries of blackholes.
Keen eyed fans have now realised Hawking’s family have invited time travellers to a memorial service in his honour at Westminster Abbey.
Hawking’s ashes will be laid to rest on June 15 alongside Isaac Newton and Charles Darwin.
And people from as far away as 2038 are welcome to attend the service.
People claiming to be time travellers have been emerging from the woodwork this year in droves.
Self-described people from the future have been taking to the internet making outrageous claims.
Some offer predictions of nuclear war, the arrival of aliens and the future of society.
Travelling back in time has never been proven to be possible by scientists.
Members of the public have been invited to apply for tickets to attend a celebration of Hawking’s life at the memorial service.
Those wishing to apply have to fill in a form and state their date of birth, which can be any day up to the end of 2038.
Prof Hawking’s foundation said the possibility of time travel had not been disproven and could not be excluded.
London travel blogger IanVisits was the first to notice those from 2019 to 2038 could attend the service at Westminster Abbey.
“Look out for time travellers at the Abbey”
Hawking once held a “time traveller party” back in 2009 – and he said the fact no-one turned up was “experimental evidence that time travel is not possible”.
IanVisits said: “Professor Hawking once threw a party for time travellers, to see if any would turn up if he posted the invite after the party.
“None did, but it seems perfect that the memorial website allows people born in the future to attend the service.
“Look out for time travellers at the Abbey.”
Sarah Bridle, a professor of Astrophysics at the University of Manchester, told BBC Radio that Hawking,, had remained curious about the potential for time travel, even after his party in 2009.
She said: “He was curious and he had a great sense of humour.
“He said he combined his two favourite things, experiments and champagne to put on this party.”
The ballot for tickets to his memorial services close at midnight on May 15.
Daily Star Online previously revealed Stephen Hawking feared Russia was spying on him during a trip to the Soviet Union.