Vampires

Blindsight is a hard science fiction novel by Canadian writer Peter Watts, published by Tor Books in 2006. ... The story follows a crew of astronauts sent to investigate a trans-Neptunian comet dubbed "Burns-Caulfield" that has been found to be transmitting an unidentified radio signal, followed by their subsequent first contact. The novel explores themes of identity, consciousness, free will, artificial intelligence, neurology, and game theory as well as evolution and biology.

https://en.wikipedia.org/wiki/Blindsight_(Watts_novel)

One of the main characters in this novel is a vampire. It's the future, and this ancient vampire species that used to prey on humans has been resurrected. They sent one of them in a spaceship (as the leader of a team of other transhumans) out to investigate a possible alien artifact.

...just short of the forward bulkhead, Jukka Sarasti climbed into view like a long white spider.

If he'd been Human I'd have known instantly what I saw there, I'd have smelled murderer all over his topology. And I wouldn't have been able to even guess at the number of his victims, because his affect was so utterly without remorse. The killing of a hundred would leave no more stain on Sarasti's surfaces than the swatting of an insect; guilt beaded and rolled off this creature like water on wax.

But Sarasti wasn't human. Sarasti was a whole different animal, and coming from him all those homicidal refractions meant nothing more than predator. He had the inclination, was born to it; whether he had ever acted on it was between him and Mission Control.

• the full novel is on the author's website: https://www.rifters.com/real/Blindsight.htm