HAL CLEMENT is a grand old man of SF, one of the last of the living classic writers of the 1940s/’50s golden age of SF adventure. Here is the core of his accomplishment in two novels, two stories, and an article. Mission of Gravity is his most famous work; its sequel, Star Light, was a Hugo Award nominee, and the essay on Mesklin, the oddly shaped planet featured in the novels, is a foundation document of modern hard SF. Clement is the writer who taught later generations of SF writers—from Poul Anderson to Larry Niven to Gregory Benford, Greg Bear, and many others—how to use science rigorously in SF. His work is as vivid, exciting, and inspiring as ever and a must for anyone who truly loves science fiction.
 
“Hal Clement brought a new seriousness to the extrapolative hard SF story, and [a] vividness of imagination—his sense that the universe is wonderful. He is a figure of importance to the genre.”
The Encyclopedia of Science Fiction
 
“Mission of Gravity is one of the seminal works of ‘hard,’ rigorous science fiction.”
SFWA Bulletin
 
“Clement masterfully evokes the rich strangeness of the physical universe.”
—Interzone
 
“The hardest sort of science fiction … Gripping stuff.”
—San Francisco Chronicle on Half Life