Kardashev Civilizations, Dyson Speres, and Black Holes
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Overview:
- Title: Kardashev Civilizations, Dyson Speres, and Black Holes
- Author: John G. Cramer
- Year: 2021
- Type: Essays
- Series: The Alternate View
Editions/Publications:
- Unknown. Analog Science Fiction & Fact, November-December 2021 (Unknown, John G. Cramer, Dell Magazines, $7.99, 212 pages, digest, MAGAZINE)