As of November 17 we have lost another of the great writers of the 20th (and the 21st, as it stands) Century, and, to my knowledge, the only SF writer (although her scope was much, much wider than that) who has won the Nobel Prize for Literature.
Her writing included Speculative Fiction (or, as she called it, Space Fiction) in a number of approaches and settings, including the clearly SF Shikasta series, the final installment in the Children of Violence sequence (The Four-Gated City), or the magnificently titled Briefing for a Descent into Hell.
Some pieces published clearly show that, even in death, she was a divisive and uncompromising presence. We need more of those, not fewer...
Reviews of some of her books (I'm not even through with her Shikasta series yet) can be found here.