Publisher's Synopsis
Scientists monitoring an x-ray pulsar in the constellation Hercules discover that messages are being sent from an unknown extraterrestrial.
Book (01 Jan 1986)
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Scientists monitoring an x-ray pulsar in the constellation Hercules discover that messages are being sent from an unknown extraterrestrial.
ISBN: | 9780441373673 |
Publisher: | Ace Science Fiction Books |
Imprint: | Ace Science Fiction Books |
Pub date: | 01 Jan 1986 |
Language: | English |
Number of pages: | 307 |
Weight: | 91g |
Height: | 0mm |
Width: | 0mm |