Statements (25)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
scientific theory
|
| gptkbp:alternativeTo |
other extinction hypotheses
|
| gptkbp:discusses |
scientific literature
popular science media |
| gptkbp:explains |
periodic mass extinctions on Earth
|
| https://www.w3.org/2000/01/rdf-schema#label |
Nemesis hypothesis
|
| gptkbp:influencedBy |
periodicity in extinction rates
|
| gptkbp:proposedBy |
gptkb:Richard_A._Muller
gptkb:Marc_Davis gptkb:Nemesis_star gptkb:Piet_Hut 1984 Nemesis causes comet showers Nemesis disturbs Oort cloud Nemesis star has a long, elliptical orbit Nemesis star orbits the Sun existence of a companion star to the Sun |
| gptkbp:relatedTo |
gptkb:Oort_cloud
mass extinction events comet showers |
| gptkbp:searchesForNemesis |
have been unsuccessful
|
| gptkbp:status |
unproven
not widely accepted |
| gptkbp:bfsParent |
gptkb:Richard_A._Muller
|
| gptkbp:bfsLayer |
5
|