Arthur C. Clarke, a writer whose seamless blend of scientific expertise and poetic imagination helped usher in the space age, died early Wednesday in Colombo, Sri Lanka, where he had lived since 1956. He was 90.

Rohan de Silva, an aide to Mr. Clarke, said the author died after experiencing breathing problems, The Associated Press reported. Mr. Clarke had post-polio syndrome for the last two decades and used a wheelchair.

From his detailed forecast of telecommunications satellites in 1945, more than a decade before the first orbital rocket flight, to his co-creation, with the director Stanley Kubrick, of the classic science fiction film “2001: A Space Odyssey,” Mr. Clarke was both prophet and promoter of the idea that humanity’s destiny lay beyond the confines of Earth. ...   more »