Shapley–Curtis debate
E885682
The Shapley–Curtis debate was a famous 1920 astronomical discussion between Harlow Shapley and Heber Curtis over the scale of the universe and the nature of spiral nebulae, which helped shape modern cosmology.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Great Debate (Shapley–Curtis debate) | 1 |
| Shapley–Curtis debate canonical | 1 |
| Shapley–Curtis debate on the scale of the universe | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T10798338 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
Target entity: Shapley–Curtis debate Context triple: [Harlow Shapley, knownFor, Shapley–Curtis debate]
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A.
The Great Debate
The Great Debate is a flagship comedic debate event held as part of the Melbourne International Comedy Festival, featuring prominent comedians humorously arguing opposing sides of a topical issue.
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B.
Bohr–Einstein debates
The Bohr–Einstein debates were a series of famous early 20th-century discussions between Niels Bohr and Albert Einstein about the foundations and interpretation of quantum mechanics, particularly concerning determinism, realism, and the completeness of the theory.
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C.
Eddington 1919 solar eclipse expedition
The Eddington 1919 solar eclipse expedition was a landmark astronomical observation campaign that measured the deflection of starlight by the Sun’s gravity, providing the first major empirical confirmation of Einstein’s theory of general relativity.
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D.
Fisher–Wright controversy
The Fisher–Wright controversy was a foundational debate in population genetics between R.A. Fisher and Sewall Wright over the relative importance of natural selection, genetic drift, and population structure in evolution.
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E.
Galileo affair
The Galileo affair was a 17th-century conflict between Galileo Galilei and the Roman Catholic Church over the support of heliocentrism, symbolizing the broader tension between emerging science and religious authority.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Target entity: Shapley–Curtis debate Target entity description: The Shapley–Curtis debate was a famous 1920 astronomical discussion between Harlow Shapley and Heber Curtis over the scale of the universe and the nature of spiral nebulae, which helped shape modern cosmology.
-
A.
The Great Debate
The Great Debate is a flagship comedic debate event held as part of the Melbourne International Comedy Festival, featuring prominent comedians humorously arguing opposing sides of a topical issue.
-
B.
Bohr–Einstein debates
The Bohr–Einstein debates were a series of famous early 20th-century discussions between Niels Bohr and Albert Einstein about the foundations and interpretation of quantum mechanics, particularly concerning determinism, realism, and the completeness of the theory.
-
C.
Eddington 1919 solar eclipse expedition
The Eddington 1919 solar eclipse expedition was a landmark astronomical observation campaign that measured the deflection of starlight by the Sun’s gravity, providing the first major empirical confirmation of Einstein’s theory of general relativity.
-
D.
Fisher–Wright controversy
The Fisher–Wright controversy was a foundational debate in population genetics between R.A. Fisher and Sewall Wright over the relative importance of natural selection, genetic drift, and population structure in evolution.
-
E.
Galileo affair
The Galileo affair was a 17th-century conflict between Galileo Galilei and the Roman Catholic Church over the support of heliocentrism, symbolizing the broader tension between emerging science and religious authority.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
astronomical debate
ⓘ
historical event ⓘ scientific controversy ⓘ |
| arguedBy |
Harlow Shapley
NERFINISHED
ⓘ
Heber Doust Curtis NERFINISHED ⓘ |
| category |
1920 in science
ⓘ
History of astronomy ⓘ Scientific debates ⓘ |
| country | United States of America ⓘ |
| CurtisPosition |
Milky Way is relatively small
NERFINISHED
ⓘ
Sun is near the center of the Milky Way ⓘ spiral nebulae are external galaxies ⓘ |
| date | 1920-04-26 ⓘ |
| documentedIn | Bulletin of the National Research Council NERFINISHED ⓘ |
| field |
astronomy
ⓘ
cosmology ⓘ |
| followedBy | acceptance of galaxies as external systems ⓘ |
| hasAftermath |
eventual consensus that spiral nebulae are galaxies
ⓘ
refinement of the size of the Milky Way ⓘ |
| hasParticipant |
Harlow Shapley
NERFINISHED
ⓘ
Heber Doust Curtis NERFINISHED ⓘ |
| hasTitle | The Scale of the Universe NERFINISHED ⓘ |
| historicalContext | pre-Hubble period of extragalactic distance scale ⓘ |
| impact | shift from Milky Way–centric universe to galaxy universe model ⓘ |
| influenced |
extragalactic astronomy
ⓘ
modern cosmology ⓘ understanding of galaxies ⓘ |
| language | English ⓘ |
| location |
National Academy of Sciences
NERFINISHED
ⓘ
Washington, D.C. ⓘ |
| mainSubject |
nature of spiral nebulae
ⓘ
scale of the universe ⓘ structure of the Milky Way ⓘ |
| organizer | National Academy of Sciences NERFINISHED ⓘ |
| partOf | Great Debate (astronomy) NERFINISHED ⓘ |
| preceded | Edwin Hubble’s discovery of Cepheids in Andromeda ⓘ |
| ShapleyPosition |
Milky Way is very large
NERFINISHED
ⓘ
Sun is far from the center of the Milky Way ⓘ spiral nebulae are part of the Milky Way ⓘ |
| topic |
distance to spiral nebulae
ⓘ
position of the Sun in the Galaxy ⓘ size of the Milky Way ⓘ status of spiral nebulae as island universes ⓘ |
| usedEvidence |
Cepheid variable stars
NERFINISHED
ⓘ
globular cluster distribution ⓘ novae in spiral nebulae ⓘ |
| year | 1920 ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Subject: Shapley–Curtis debate Description of subject: The Shapley–Curtis debate was a famous 1920 astronomical discussion between Harlow Shapley and Heber Curtis over the scale of the universe and the nature of spiral nebulae, which helped shape modern cosmology.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.