Yep, that’s @remarried‘s! [X]

To answer Daniel, I think the sun is always up and could hurt them but they could stay on the dark side of the planet where it’s night, and also, the spaceship/spacecompound could be sealed from sunlight. The vampires inside would still fall into the deathsleep on their own inner biological clocks so even with a spacesuit capable of protecting them from the sunlight they’d probably still fall into the deathsleep in the presence of sunlight… it would get complicated. 

More importantly, they’d need to bring live victims and wouldn’t be able to kill, bc they’d kill off their blood supply. Ricean vampires don’t get much nutrition out of animal or bottled blood, presumably they also need the soul that comes with live human blood.

If a vampire died in space, the ashes would have nowhere to go, but hopefully they would be scattered, bc Ricean vampires can sometimes resurrect if their ashes are not scattered 😛