Gusev crater
E396675
Gusev crater is a large impact crater on Mars that was explored by NASA’s Spirit rover in search of past water-related geological activity.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Gusev Crater | 3 |
| Gusev crater canonical | 2 |
| Gusev crater plains | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3894323 — 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: Gusev crater Context triple: [Mars Exploration Rover mission, landingSite, Gusev crater]
-
A.
Sechenov crater
Sechenov crater is an impact crater on the Moon located near the large Gagarin crater on the lunar far side.
-
B.
Gale Crater
Gale Crater is a large impact crater on Mars that has been extensively explored for its layered geological history and past habitability clues.
-
C.
Chaplygin crater
Chaplygin crater is an impact crater on the Moon’s far side, notable for its heavily eroded rim and location near the large walled plain Gagarin.
-
D.
Kondratyuk crater
Kondratyuk crater is an impact crater on the far side of the Moon, named after Soviet engineer and spaceflight pioneer Yuri Kondratyuk.
-
E.
Pavlov crater
Pavlov crater is a large, heavily eroded impact crater on the Moon’s far side, located near the prominent Gagarin crater.
- 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: Gusev crater Target entity description: Gusev crater is a large impact crater on Mars that was explored by NASA’s Spirit rover in search of past water-related geological activity.
-
A.
Sechenov crater
Sechenov crater is an impact crater on the Moon located near the large Gagarin crater on the lunar far side.
-
B.
Gale Crater
Gale Crater is a large impact crater on Mars that has been extensively explored for its layered geological history and past habitability clues.
-
C.
Chaplygin crater
Chaplygin crater is an impact crater on the Moon’s far side, notable for its heavily eroded rim and location near the large walled plain Gagarin.
-
D.
Kondratyuk crater
Kondratyuk crater is an impact crater on the far side of the Moon, named after Soviet engineer and spaceflight pioneer Yuri Kondratyuk.
-
E.
Pavlov crater
Pavlov crater is a large, heavily eroded impact crater on the Moon’s far side, located near the prominent Gagarin crater.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
Martian crater
ⓘ
impact crater ⓘ |
| connectedTo |
Ma'adim Vallis
ⓘ
linked to:
Ma'adim Vallis inlet
|
| consideredAncientLake | yes ⓘ |
| contains |
Columbia Hills silica-rich deposits
ⓘ
linked to:
Columbia Hills on Mars
hematite-bearing materials ⓘ sulfate-bearing rocks ⓘ |
| containsValley | Ma'adim Vallis inlet ⓘ |
| discoveredBy | Mariner 4 imaging (identified as cratered feature) ⓘ |
| explorationAgency | NASA ⓘ |
| exploredBy | Spirit rover ⓘ |
| geologicalAge | Noachian to Hesperian ⓘ |
| hasApproximateDiameter |
about 103 miles
ⓘ
about 166 kilometers ⓘ |
| hasCentralFeature |
Columbia Hills
ⓘ
linked to:
Columbia Hills on Mars
|
| hasCraterRimCondition | partially eroded ⓘ |
| hasEvidenceOf |
ancient lake deposits
ⓘ
aqueous alteration ⓘ past water activity ⓘ |
| hasFeatureType | impact structure ⓘ |
| hasFloorMaterial |
basaltic lava flows
ⓘ
volcanic rocks ⓘ |
| hasImageryFrom |
CTX camera
ⓘ
linked to:
Context Camera
HiRISE ⓘ
linked to:
HiRISE instrument
THEMIS ⓘ
linked to:
THEMIS instrument
|
| hasInteriorMorphology |
cratered plains
ⓘ
hills and knobs ⓘ lava-flooded floor ⓘ |
| hasLatitude | approximately 14.6° S ⓘ |
| hasLongitude | approximately 175.3° E ⓘ |
| hasScientificSignificance |
evidence for hydrothermal activity
ⓘ
key site for studying early Martian climate ⓘ |
| isPartOf |
Martian southern highlands margin
ⓘ
linked to:
Martian southern highlands
|
| landingSiteOf | Spirit rover ⓘ |
| locatedInRegion | Aeolis quadrangle ⓘ |
| locatedOnPlanet | Mars ⓘ |
| MaadimVallisRole | possible former outflow channel into crater ⓘ |
| namedAfter |
Matvey Gusev
ⓘ
Russian astronomer Matvey Gusev ⓘ |
| planetographicCoordinateSystem | areocentric ⓘ |
| SpiritEndOfMissionLocation | Troy region in Gusev crater ⓘ |
| SpiritLandingDate | 2004-01-04 ⓘ |
| SpiritMissionObjective | search for past water-related geological activity ⓘ |
| SpiritOperationalArea |
Columbia Hills
ⓘ
linked to:
Columbia Hills on Mars
Gusev crater plains ⓘ
linked to:
Gusev crater
|
| SpiritPrimaryLandingEllipse | on Gusev crater floor ⓘ |
| studiedBy |
Mars Global Surveyor
ⓘ
Mars Odyssey ⓘ
linked to:
Mars Odyssey mission
Mars Reconnaissance Orbiter ⓘ |
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: Gusev crater Description of subject: Gusev crater is a large impact crater on Mars that was explored by NASA’s Spirit rover in search of past water-related geological activity.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
Husband Hill on Mars
linked to: Gusev crater
linked to: Gusev crater
subject linked to:
Columbia Hills on Mars
linked to: Gusev crater