Originally published: New York : Ace Books, 1973. - 'A shorter and earlier version ... appeared as "No more stars" under the pseudonym of Charles Satterfield in "Beyond fantasy fiction" for July, 1954' - title page verso.
The sky is falling by Lester Del Rey. ISBN 0450020509. Published by New English Library in 1974. Publication and catalogue information, links to buy online and reader comments.