Statements (13)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:person
|
| gptkbp:birthYear |
1934
|
| gptkbp:employer |
gptkb:Harvard-Smithsonian_Center_for_Astrophysics
|
| gptkbp:field |
gptkb:SETI
gptkb:astronomy |
| https://www.w3.org/2000/01/rdf-schema#label |
John A. Ball
|
| gptkbp:knownFor |
hypothesis of the zoo hypothesis in SETI
|
| gptkbp:nationality |
gptkb:American
|
| gptkbp:occupation |
astronomer
author |
| gptkbp:publishedIn |
gptkb:The_Zoo_Hypothesis_(1973)
|
| gptkbp:bfsParent |
gptkb:Zoo_hypothesis
|
| gptkbp:bfsLayer |
5
|