The Conservatives would be a "disaster" for public services, the world-renowned astrophysicist said.
“I’m voting Labour because another five years of Conservative government would be a disaster for the NHS, the police and other public services," he said, after a meeting with Cambridge MP Daniel Zeichner.
The cosmologist has supported Labour for much of his life and backed Mr Zeichner, his local Labour candidate, at the 2015 election.
The image was taken by Nasa's HiRISE camera, which is mounted on its Mars Reconaissance Orbiter Nasa.
5/30 Yellowstone from space NASA astronaut Reid Wiseman shared this image of Yellowstone via his twitter account Nasa.
6/30 Black Hole Friday Nasa celebrated Black Friday by looking into space instead — sharing pictures of black holes Nasa.
“I was delighted to meet Professor Hawking again and receive his support for my re-election and a Labour government," Mr Zeichner said. »