Mariner 8
E918522
Mariner 8 was a NASA spacecraft in the Mariner program intended for Mars exploration that failed to reach orbit due to a launch vehicle malfunction in 1971.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Mariner 8 canonical | 3 |
| Mariner Mars 1971 missions | 1 |
| Mariner-H | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T11187851 — 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: Mariner 8 Context triple: [Mariner planetary missions, includes, Mariner 8]
-
A.
Mariner 9
Mariner 9 was a NASA robotic spacecraft that became the first artificial satellite of Mars, revolutionizing our understanding of the planet’s surface and atmosphere in the early 1970s.
-
B.
Mariner 5
Mariner 5 was a NASA space probe launched in 1967 that conducted a successful flyby of Venus, providing important data on the planet’s atmosphere and environment.
-
C.
Mariner 6
Mariner 6 was a NASA spacecraft launched in 1969 that conducted one of the first successful flyby missions to Mars, returning close-up images and data about the planet’s surface and atmosphere.
-
D.
Mariner 7
Mariner 7 was a NASA spacecraft launched in 1969 that conducted one of the earliest successful flyby missions to study the planet Mars.
-
E.
Mariner 4
Mariner 4 was a NASA spacecraft that performed the first successful flyby of Mars in 1965, returning the first close-up images of another planet.
- 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: Mariner 8 Target entity description: Mariner 8 was a NASA spacecraft in the Mariner program intended for Mars exploration that failed to reach orbit due to a launch vehicle malfunction in 1971.
-
A.
Mariner 9
Mariner 9 was a NASA robotic spacecraft that became the first artificial satellite of Mars, revolutionizing our understanding of the planet’s surface and atmosphere in the early 1970s.
-
B.
Mariner 5
Mariner 5 was a NASA space probe launched in 1967 that conducted a successful flyby of Venus, providing important data on the planet’s atmosphere and environment.
-
C.
Mariner 6
Mariner 6 was a NASA spacecraft launched in 1969 that conducted one of the first successful flyby missions to Mars, returning close-up images and data about the planet’s surface and atmosphere.
-
D.
Mariner 7
Mariner 7 was a NASA spacecraft launched in 1969 that conducted one of the earliest successful flyby missions to study the planet Mars.
-
E.
Mariner 4
Mariner 4 was a NASA spacecraft that performed the first successful flyby of Mars in 1965, returning the first close-up images of another planet.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
NASA spacecraft
ⓘ
failed space mission ⓘ space probe ⓘ uncrewed spacecraft ⓘ |
| alsoKnownAs |
Mariner Mars 1971, spacecraft A
ⓘ
Mariner-H ⓘ
linked to:
Mariner 8
|
| communicationBand | X-band ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| designedFor | Mars global mapping from orbit ⓘ |
| failureCause | launch vehicle malfunction ⓘ |
| failureDetail | Centaur upper stage malfunction ⓘ |
| failurePhase | ascent ⓘ |
| followedBy | Mariner 9 ⓘ |
| intendedDestination | Mars ⓘ |
| intendedScienceObjective |
map Martian surface
ⓘ
study Martian atmosphere ⓘ study Martian surface temperature ⓘ |
| launchComplex |
Launch Complex 36A
ⓘ
linked to:
Launch Complex 36
|
| launchDate | 1971-05-08 ⓘ |
| launchMass | approximately 1000 kilograms ⓘ |
| launchOutcome | launch failure ⓘ |
| launchSite |
Cape Kennedy
ⓘ
linked to:
Cape Canaveral
|
| launchVehicle | Atlas-Centaur ⓘ |
| launchVehicleVariant |
Atlas-Centaur SLV-3C
ⓘ
linked to:
Atlas LV-3C Centaur
|
| launchYear | 1971 ⓘ |
| managingCenter | Jet Propulsion Laboratory ⓘ |
| missionOutcome | failure ⓘ |
| missionType | Mars orbiter ⓘ |
| operator | NASA ⓘ |
| partOf | Mariner program ⓘ |
| plannedMissionDuration | about 90 days in Mars orbit ⓘ |
| plannedOrbitType | Mars orbit ⓘ |
| powerSource | solar panels ⓘ |
| precededBy | Mariner 7 ⓘ |
| program |
Mariner Mars 1971 missions
ⓘ
linked to:
Mariner 8
|
| programGoal |
Mars exploration
ⓘ
Mars orbital mapping ⓘ |
| scientificInstruments |
imaging system
ⓘ
infrared radiometer ⓘ radio science experiment ⓘ ultraviolet spectrometer ⓘ |
| spaceAgency | NASA ⓘ |
| spacecraftBus | Mariner Mars 1971 bus ⓘ |
| spacecraftManufacturer | Jet Propulsion Laboratory ⓘ |
| status | destroyed ⓘ |
| targetBody | Mars ⓘ |
| twinSpacecraft | Mariner 9 ⓘ |
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: Mariner 8 Description of subject: Mariner 8 was a NASA spacecraft in the Mariner program intended for Mars exploration that failed to reach orbit due to a launch vehicle malfunction in 1971.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Mariner 8