Drake equation
E6344
The Drake equation is a probabilistic formula used to estimate the number of technologically advanced extraterrestrial civilizations that might exist in our galaxy.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Drake equation canonical | 8 |
| Drake Equation | 1 |
| Intelligent Life in the Universe | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T56346 — 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.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Drake equation Context triple: [SETI, relatedTo, Drake equation]
-
A.
Fermi paradox
The Fermi paradox is the apparent contradiction between the high probability of extraterrestrial civilizations existing in the universe and the lack of evidence or contact with them.
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B.
SETI
SETI (Search for Extraterrestrial Intelligence) is a scientific effort that uses astronomical observations and signal analysis to detect possible signs of intelligent life beyond Earth.
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C.
Pioneer plaque project
The Pioneer plaque project was a scientific and artistic initiative to create and place engraved messages aboard the Pioneer 10 and 11 spacecraft, intended as a symbolic introduction of humanity to any extraterrestrial intelligence that might encounter them.
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D.
Voyager Golden Record project
The Voyager Golden Record project was a NASA-led initiative to create and launch a phonograph record aboard the Voyager spacecraft containing sounds and images representing life and culture on Earth for any extraterrestrial intelligence that might encounter it.
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E.
Bardeen
Bardeen is a surname most notably associated with John Bardeen, the American physicist who won the Nobel Prize in Physics twice for his work on the transistor and superconductivity.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Drake equation Target entity description: The Drake equation is a probabilistic formula used to estimate the number of technologically advanced extraterrestrial civilizations that might exist in our galaxy.
-
A.
Fermi paradox
The Fermi paradox is the apparent contradiction between the high probability of extraterrestrial civilizations existing in the universe and the lack of evidence or contact with them.
-
B.
SETI
SETI (Search for Extraterrestrial Intelligence) is a scientific effort that uses astronomical observations and signal analysis to detect possible signs of intelligent life beyond Earth.
-
C.
Pioneer plaque project
The Pioneer plaque project was a scientific and artistic initiative to create and place engraved messages aboard the Pioneer 10 and 11 spacecraft, intended as a symbolic introduction of humanity to any extraterrestrial intelligence that might encounter them.
-
D.
Voyager Golden Record project
The Voyager Golden Record project was a NASA-led initiative to create and launch a phonograph record aboard the Voyager spacecraft containing sounds and images representing life and culture on Earth for any extraterrestrial intelligence that might encounter it.
-
E.
Bardeen
Bardeen is a surname most notably associated with John Bardeen, the American physicist who won the Nobel Prize in Physics twice for his work on the transistor and superconductivity.
- F. None of above. chosen
Statements (51)
| Predicate | Object |
|---|---|
| instanceOf |
astronomical equation
ⓘ
equation in astrobiology ⓘ probabilistic formula ⓘ scientific model ⓘ |
| appliesTo |
Milky Way
ⓘ
surface form:
Milky Way galaxy
|
| creator | Frank Drake ⓘ |
| defines | N ⓘ |
| describedBySource | Project Ozma meeting ⓘ |
| field |
SETI
ⓘ
astrobiology ⓘ astronomy ⓘ cosmology ⓘ statistics ⓘ |
| hasCriticism |
can give misleading impression of precision
ⓘ
may reflect observer selection effects ⓘ parameters are poorly constrained ⓘ |
| hasFormula | N = R* × fp × ne × fl × fi × fc × L ⓘ |
| hasPart |
L
ⓘ
N ⓘ R* ⓘ fc ⓘ fi ⓘ fl ⓘ fp ⓘ ne ⓘ |
| hasQuality |
highly uncertain parameters
ⓘ
multiplicative model ⓘ order-of-magnitude estimate ⓘ speculative ⓘ |
| hasVersion | extended Drake equations including additional factors ⓘ |
| inception | 1961 ⓘ |
| influenced |
Bayesian models of extraterrestrial life
ⓘ
Fermi paradox discussions ⓘ modern SETI research programs ⓘ |
| mainSubject |
Milky Way
ⓘ
surface form:
Milky Way galaxy
extraterrestrial intelligence ⓘ technologically advanced civilizations ⓘ |
| namedAfter | Frank Drake ⓘ |
| notableWork | used in 1961 Green Bank conference on SETI ⓘ |
| use |
estimate number of communicating extraterrestrial civilizations
ⓘ
guide SETI observational strategies ⓘ illustrate scientific uncertainties about extraterrestrial life ⓘ structure discussion of factors in the search for extraterrestrial intelligence ⓘ |
| variableMeaning |
L = average lifetime of detectable civilizations
ⓘ
N = number of detectable civilizations in the Milky Way ⓘ R* = average rate of star formation in the galaxy ⓘ fc = fraction of intelligent civilizations that develop detectable technology ⓘ fi = fraction of life-bearing planets where intelligent life evolves ⓘ fl = fraction of habitable planets where life actually appears ⓘ fp = fraction of stars with planetary systems ⓘ ne = average number of habitable planets per star with planets ⓘ |
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.
Instruction
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.
Input
Subject: Drake equation Description of subject: The Drake equation is a probabilistic formula used to estimate the number of technologically advanced extraterrestrial civilizations that might exist in our galaxy.
Referenced by (10)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Drake Equation
this entity surface form:
Intelligent Life in the Universe