"Timescape" is a science fiction novel written by Gregory Benford, published in 1980. The story explores the concept of time travel and its implications on human civilization. It follows a group of scientists who attempt to communicate with the past to prevent ecological disasters in their present. The narrative intertwines multiple timelines and perspectives, showcasing the challenges of altering history. As the characters grapple with the consequences of their actions, the novel raises questions about fate, responsibility, and the interconnectedness of time. "Timescape" is noted for its scientific accuracy and thought-provoking themes.