Pale Blue Dot: A Vision of the Human Future in Space

When this book was written, what was known about planets in other solar systems?

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Asked by Cat on 07 Oct 03:32

Last updated by Cat on 07 Oct 03:58

1 Answers

Answered by Cat on 07 Oct 03:58

When this book was written, no planets no other solar system were known, although studies were underway to find them. It was believed that they would be found.