Can science fiction spur social change? Sci-fi often evokes images of space travel and future technology, but fantasy worlds are also being used to examine attitudes towards sexism, racism, violence and other injustices. Through imagination and prose, sci-fi writers are challenging the status quo to create alternative realities. We'll speak to authors using the genre to critique our existing universe. Join us at 19:30 GMT. On this episode of The Stream, we speak with: Daniel José Older @djolder Author of "Shadowshaper", "Half-Resurrection Blues" shadowshaper.net Walidah Imarisha @WalidahImarisha Co-Editor of "Octavia's Brood: Science Fiction Stories from Social Justice Movements" octaviasbrood.com Zen Cho @zenaldehyde Author of "Sorcerer to the Crown" zencho.org Mark Oshiro @MarkDoesStuff Science fiction blogger markreads.net Follow The Stream and join Al Jazeera’s social media community: This episode’s story: http://stream.aljazeera.com/story/201... FACEBOOK: / ajstream TWITTER: / ajstream GOOGLE+: http://google.com/+TheStream **************************************************** On The Stream: Sci-fi for social change Subscribe to our channel: http://bit.ly/AJSubscribe Follow us on Twitter: / ajenglish Find us on Facebook: / aljazeera Check out our website: http://www.aljazeera.com/