Lunar Sample 15415
E867330
Lunar Sample 15415 is a famous Apollo 15 Moon rock, nicknamed the "Genesis Rock," believed to be an ancient piece of the Moon’s primordial crust.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Lunar Sample 15415 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T10501749 — 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: Lunar Sample 15415 Context triple: [Genesis Rock, catalogDesignation, Lunar Sample 15415]
-
A.
Luna 24
Luna 24 was a Soviet lunar sample-return mission launched in 1976 that successfully collected and brought back soil from the Moon’s surface.
-
B.
ALSEP (Apollo Lunar Surface Experiments Package)
The Apollo Lunar Surface Experiments Package (ALSEP) was a suite of scientific instruments deployed by Apollo astronauts on the Moon to conduct long-term studies of the lunar environment, interior, and surface processes.
-
C.
Luna 16
Luna 16 was a Soviet robotic spacecraft that achieved the first successful uncrewed lunar sample return mission from the Moon to Earth in 1970.
-
D.
Luna 20
Luna 20 was a Soviet robotic lunar sample-return mission that successfully collected and returned soil from the Moon’s surface in 1972.
-
E.
Nakhla
Nakhla is a valley near Mecca in the Arabian Peninsula historically known as an important pre-Islamic religious site.
- 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: Lunar Sample 15415 Target entity description: Lunar Sample 15415 is a famous Apollo 15 Moon rock, nicknamed the "Genesis Rock," believed to be an ancient piece of the Moon’s primordial crust.
-
A.
Luna 24
Luna 24 was a Soviet lunar sample-return mission launched in 1976 that successfully collected and brought back soil from the Moon’s surface.
-
B.
ALSEP (Apollo Lunar Surface Experiments Package)
The Apollo Lunar Surface Experiments Package (ALSEP) was a suite of scientific instruments deployed by Apollo astronauts on the Moon to conduct long-term studies of the lunar environment, interior, and surface processes.
-
C.
Luna 16
Luna 16 was a Soviet robotic spacecraft that achieved the first successful uncrewed lunar sample return mission from the Moon to Earth in 1970.
-
D.
Luna 20
Luna 20 was a Soviet robotic lunar sample-return mission that successfully collected and returned soil from the Moon’s surface in 1972.
-
E.
Nakhla
Nakhla is a valley near Mecca in the Arabian Peninsula historically known as an important pre-Islamic religious site.
- F. None of above. chosen
Statements (40)
| Predicate | Object |
|---|---|
| instanceOf |
Apollo lunar sample
ⓘ
anorthosite ⓘ lunar rock sample ⓘ |
| analysisMethods |
geochemical analysis
ⓘ
petrographic microscopy ⓘ radiometric age dating ⓘ |
| associatedProgram | Apollo program NERFINISHED ⓘ |
| celestialBody | Moon NERFINISHED ⓘ |
| collectedByAstronaut |
David Scott
NERFINISHED
ⓘ
James B. Irwin NERFINISHED ⓘ |
| collectedDuringMission | Apollo 15 NERFINISHED ⓘ |
| collectedFromFeature | Apennine Front NERFINISHED ⓘ |
| collectedFromLocation |
Hadley-Apennine region of the Moon
NERFINISHED
ⓘ
spur of Hadley Delta ⓘ |
| collectedOnExtravehicularActivity | Apollo 15 EVA 2 NERFINISHED ⓘ |
| collectionDate | 1971-08-01 ⓘ |
| color | light-colored ⓘ |
| countryOfCustody | United States NERFINISHED ⓘ |
| curatedAtFacility | Lunar Sample Laboratory Facility NERFINISHED ⓘ |
| curatedBy | NASA Johnson Space Center NERFINISHED ⓘ |
| dominantMineral | plagioclase feldspar ⓘ |
| estimatedAge |
about 4.0 billion years
ⓘ
on the order of early lunar crust formation ⓘ |
| foundInGeologicUnit | lunar highlands crust ⓘ |
| mass |
about 270 grams
ⓘ
approximately 0.27 kilograms ⓘ |
| missionLandingSite | Hadley Rille / Apennine Mountains landing site NERFINISHED ⓘ |
| missionRole | key sample for understanding lunar highlands crust ⓘ |
| NASACollectionCategory | Apollo 15 lunar sample collection NERFINISHED ⓘ |
| nickname | Genesis Rock NERFINISHED ⓘ |
| notableFeature | one of the most famous Moon rocks returned to Earth ⓘ |
| plagioclaseComposition | near end-member anorthite ⓘ |
| publicDisplay | sometimes displayed in museums and exhibitions ⓘ |
| relatedToConcept | lunar magma ocean hypothesis ⓘ |
| returnedToEarthBy | Apollo 15 Command Module Endeavour NERFINISHED ⓘ |
| rockType | ferroan anorthosite ⓘ |
| sampleNumber | 15415 ⓘ |
| scientificSignificance |
considered a sample of the Moon’s primordial crust
ⓘ
used to study early lunar differentiation ⓘ |
| texture | coarse-grained ⓘ |
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: Lunar Sample 15415 Description of subject: Lunar Sample 15415 is a famous Apollo 15 Moon rock, nicknamed the "Genesis Rock," believed to be an ancient piece of the Moon’s primordial crust.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.