Carl Sagan Memorial Station
E410423
Carl Sagan Memorial Station is the Mars surface lander of NASA’s 1997 Mars Pathfinder mission, named in honor of the famed astronomer and science communicator Carl Sagan.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Carl Sagan Memorial Station canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4065096 — 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: Carl Sagan Memorial Station Context triple: [Mars Pathfinder, primaryLanderName, Carl Sagan Memorial Station]
-
A.
Casey research station
Casey research station is an Australian Antarctic research base on the coast of East Antarctica, supporting scientific studies in fields such as climate, glaciology, and biology.
-
B.
Amundsen–Scott South Pole Station
Amundsen–Scott South Pole Station is a U.S. scientific research facility at the geographic South Pole, known for its studies in astronomy, atmospheric science, and climate research in one of the most extreme environments on Earth.
-
C.
Vernadsky Research Base
Vernadsky Research Base is a Ukrainian Antarctic research station known for its long-term studies of ozone depletion, climate, and upper-atmosphere physics.
-
D.
Scott Base
Scott Base is New Zealand's permanent Antarctic research station located on Ross Island near the Ross Ice Shelf.
-
E.
McMurdo Station
McMurdo Station is the largest Antarctic research base, serving as the primary U.S. logistics and science hub on Ross Island near the Ross Ice Shelf.
- 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: Carl Sagan Memorial Station Target entity description: Carl Sagan Memorial Station is the Mars surface lander of NASA’s 1997 Mars Pathfinder mission, named in honor of the famed astronomer and science communicator Carl Sagan.
-
A.
Casey research station
Casey research station is an Australian Antarctic research base on the coast of East Antarctica, supporting scientific studies in fields such as climate, glaciology, and biology.
-
B.
Amundsen–Scott South Pole Station
Amundsen–Scott South Pole Station is a U.S. scientific research facility at the geographic South Pole, known for its studies in astronomy, atmospheric science, and climate research in one of the most extreme environments on Earth.
-
C.
Vernadsky Research Base
Vernadsky Research Base is a Ukrainian Antarctic research station known for its long-term studies of ozone depletion, climate, and upper-atmosphere physics.
-
D.
Scott Base
Scott Base is New Zealand's permanent Antarctic research station located on Ross Island near the Ross Ice Shelf.
-
E.
McMurdo Station
McMurdo Station is the largest Antarctic research base, serving as the primary U.S. logistics and science hub on Ross Island near the Ross Ice Shelf.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
Mars lander
ⓘ
planetary surface station ⓘ space exploration memorial ⓘ |
| approximateMissionEnd | 1997-09-27 ⓘ |
| celestialBody | Mars ⓘ |
| communicationLost | 1997-09-27 ⓘ |
| communicationRole | relay station for Sojourner rover ⓘ |
| countryOfOperator |
United States
ⓘ
linked to:
United States of America
|
| hasInstrument |
alpha proton X-ray spectrometer interface for rover
ⓘ
imaging system ⓘ meteorology instruments ⓘ |
| hasRover | Sojourner ⓘ |
| landingDate | 1997-07-04 ⓘ |
| landingRegion | Chryse Planitia ⓘ |
| landingSite | Ares Vallis ⓘ |
| landingSystem |
airbag-assisted landing
ⓘ
braking rockets ⓘ parachute descent ⓘ |
| launchDate | 1996-12-04 ⓘ |
| launchSite | Cape Canaveral Air Force Station Space Launch Complex 17A ⓘ |
| launchVehicle |
Delta II 7925
ⓘ
linked to:
Delta II
|
| location | Mars ⓘ |
| massClass | small Mars lander ⓘ |
| memorialPurpose | honor the legacy of Carl Sagan ⓘ |
| mission | Mars Pathfinder ⓘ |
| missionOutcome |
exceeded planned surface mission duration
ⓘ
successful landing ⓘ |
| namedAfter | Carl Sagan ⓘ |
| namedBy | NASA ⓘ |
| operator | NASA ⓘ |
| planetaryProtectionCategory | Category IVa ⓘ |
| powerSource | solar power ⓘ |
| primaryMissionType |
Mars surface exploration
ⓘ
technology demonstration ⓘ |
| program | NASA Discovery Program ⓘ |
| relatedMission |
Mars Exploration Rover Opportunity
ⓘ
linked to:
Opportunity rover
Mars Exploration Rover Spirit ⓘ
linked to:
Spirit rover
Mars Science Laboratory Curiosity ⓘ
linked to:
Mars Science Laboratory
Viking 1 ⓘ Viking 2 ⓘ |
| relatedPerson | Carl Sagan ⓘ |
| scientificObjective |
characterize Martian atmosphere and weather
ⓘ
study Martian rocks and soil ⓘ test new landing technologies ⓘ |
| spaceAgency |
NASA Jet Propulsion Laboratory
ⓘ
linked to:
Jet Propulsion Laboratory
|
| spacecraftComponentOf |
Mars Pathfinder lander
ⓘ
linked to:
Mars Pathfinder
|
| status | inactive ⓘ |
| surfaceMissionStart | 1997-07-04 ⓘ |
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: Carl Sagan Memorial Station Description of subject: Carl Sagan Memorial Station is the Mars surface lander of NASA’s 1997 Mars Pathfinder mission, named in honor of the famed astronomer and science communicator Carl Sagan.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.