Hills cloud
Nube de Hills
- Date
- 1981 · confidence medium
- Place
- Los Alamos, New Mexico, United States
- Credited to
- Jack G. Hills
- Field
- Cosmos & Earth
⚠️ Disputed: the sources disagree.
What was discovered
A theoretical circumstellar region interior to the Oort cloud, proposed as an additional reservoir of comets in the outer solar system; its existence has not been confirmed observationally.
A theoretical hypothesis (the 'inner Oort cloud'), not observationally confirmed; its existence and extent are debated.
What it led to
- New models of outer solar system formation and evolution
- Hypotheses on the origin of long-period comets