Samuel R. Delany has contributed to the discussion on racism in science fiction through his own creative output. He has used the genre's unique ability to create new worlds and societies to explore the concept of race. By doing so, he has challenged the traditional, often white - centered, view of science fiction. His works have encouraged a shift in the way the genre approaches race, from one of exclusion or misrepresentation to one of inclusion and accurate portrayal. This has opened the door for more diverse voices in science fiction and a more comprehensive exploration of how racism can exist and be combated in different fictional universes.
Delany's work has contributed by providing more diverse and complex portrayals of characters of different races. His stories show that race matters in the science - fiction worlds he creates, which is different from some earlier works that ignored or misrepresented race. This has led to more in - depth discussions about how to better represent race in science fiction.