Endeavour Crater
E489890
Endeavour Crater is a large impact crater on Mars extensively studied by NASA’s Opportunity rover for its ancient geological and potentially habitable environments.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Endeavour Crater canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T4994063 — 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: Endeavour Crater Context triple: [Opportunity, notableSiteExplored, Endeavour Crater]
-
A.
Eddington crater
Eddington crater is a large, lava-flooded lunar impact feature on the Moon’s near side, notable for its heavily eroded rim and partially submerged floor.
-
B.
Occator Crater
Occator Crater is a prominent impact crater on the dwarf planet Ceres, best known for its bright salt deposits that suggest past subsurface brine activity.
-
C.
Endurance Crater
Endurance Crater is a Martian impact crater on Meridiani Planum that was extensively studied by NASA’s Opportunity rover for insights into the planet’s geologic and aqueous history.
-
D.
Vernadsky crater
Vernadsky crater is a lunar impact crater named in honor of Russian-Ukrainian mineralogist and geochemist Vladimir Vernadsky.
-
E.
Fizeau crater
Fizeau crater is a large impact crater on the far side of the Moon, named in honor of French physicist Hippolyte Fizeau.
- 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: Endeavour Crater Target entity description: Endeavour Crater is a large impact crater on Mars extensively studied by NASA’s Opportunity rover for its ancient geological and potentially habitable environments.
-
A.
Eddington crater
Eddington crater is a large, lava-flooded lunar impact feature on the Moon’s near side, notable for its heavily eroded rim and partially submerged floor.
-
B.
Occator Crater
Occator Crater is a prominent impact crater on the dwarf planet Ceres, best known for its bright salt deposits that suggest past subsurface brine activity.
-
C.
Endurance Crater
Endurance Crater is a Martian impact crater on Meridiani Planum that was extensively studied by NASA’s Opportunity rover for insights into the planet’s geologic and aqueous history.
-
D.
Vernadsky crater
Vernadsky crater is a lunar impact crater named in honor of Russian-Ukrainian mineralogist and geochemist Vladimir Vernadsky.
-
E.
Fizeau crater
Fizeau crater is a large impact crater on the far side of the Moon, named in honor of French physicist Hippolyte Fizeau.
- F. None of above. chosen
Statements (51)
| Predicate | Object |
|---|---|
| instanceOf |
Martian crater
ⓘ
impact crater ⓘ |
| arrivalDateOfOpportunity | 2011-08-09 ⓘ |
| arrivalSolOfOpportunity | 2681 ⓘ |
| containsFeature |
Cape Tribulation rim segment
ⓘ
Cape York rim segment NERFINISHED ⓘ Matijevic Hill NERFINISHED ⓘ Murray Ridge rim segment NERFINISHED ⓘ Solander Point rim segment ⓘ |
| containsRockUnit |
Copper Cliff unit
ⓘ
Esperance outcrop ⓘ Matijevic Formation NERFINISHED ⓘ Shoemaker Formation NERFINISHED ⓘ Whitewater Lake outcrops NERFINISHED ⓘ |
| hasApproximateDiameter |
14 miles
ⓘ
22 kilometers ⓘ |
| hasCentralFeature | eroded central uplift remnants ⓘ |
| hasEvidenceOf |
ancient aqueous alteration
ⓘ
neutral to mildly alkaline water ⓘ potentially habitable past environments ⓘ |
| hasGeologicalAge | Noachian ⓘ |
| hasLatitude | approximately 2.3°S ⓘ |
| hasLongitude | approximately 354.5°E ⓘ |
| hasMineralogy |
phyllosilicates
ⓘ
smectite clays ⓘ sulfates ⓘ |
| hasRimFeature |
Cape Tribulation
NERFINISHED
ⓘ
Cape York NERFINISHED ⓘ Murray Ridge NERFINISHED ⓘ Solander Point NERFINISHED ⓘ |
| hasScientificSignificance |
key site for studying early Martian habitability
ⓘ
preserves some of the oldest accessible rocks visited by Opportunity ⓘ |
| hasStratigraphy |
impact breccias
ⓘ
pre-impact crustal rocks ⓘ sulfate-rich sedimentary rocks ⓘ |
| locatedInRegion | Meridiani Planum NERFINISHED ⓘ |
| locatedOn | Mars NERFINISHED ⓘ |
| namedAfter | HM Bark Endeavour NERFINISHED ⓘ |
| nameHonors | James Cook’s ship Endeavour NERFINISHED ⓘ |
| observedByInstrument |
APXS
NERFINISHED
ⓘ
CRISM NERFINISHED ⓘ MI NERFINISHED ⓘ Navcam NERFINISHED ⓘ Pancam NERFINISHED ⓘ |
| observedByOrbiter |
Mars Global Surveyor
NERFINISHED
ⓘ
Mars Reconnaissance Orbiter NERFINISHED ⓘ |
| olderThan | surrounding Meridiani Planum plains ⓘ |
| studiedBy | Opportunity rover NERFINISHED ⓘ |
| targetOfMission |
Mars Exploration Rover-B
NERFINISHED
ⓘ
Opportunity extended mission ⓘ |
| visitedBy | Opportunity rover NERFINISHED ⓘ |
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: Endeavour Crater Description of subject: Endeavour Crater is a large impact crater on Mars extensively studied by NASA’s Opportunity rover for its ancient geological and potentially habitable environments.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Opportunity