Shapley–Curtis debate held
Date as reported
Harlow Shapley and Heber Curtis debated the scale of the universe and the nature of spiral nebulae.
- Category
- Culture, Education, and Public Engagement
- Type
- Cultural event
- Organization
- Harlow Shapley; Heber Curtis
- Participants
- Harlow Shapley, Heber Curtis
Sources and attribution
- NASA HEASARC — 1900–1959 (opens in a new tab) — Factual summary; source attribution retained.