Sputnik 2
E90685
Sputnik 2 was a Soviet spacecraft launched in 1957 that became famous for carrying Laika, the first living creature to orbit the Earth.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Sputnik 2 canonical | 9 |
| Korabl-Sputnik 2 | 1 |
| carrying Laika, the first living creature to orbit Earth | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T743024 — 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: Sputnik 2 Context triple: [Vanguard 1, precededBy, Sputnik 2]
-
A.
Sputnik 1
Sputnik 1 was the first artificial Earth satellite, launched by the Soviet Union in 1957 and marking the beginning of the space age.
-
B.
Vostok 1
Vostok 1 was the Soviet spacecraft that carried Yuri Gagarin on the first human spaceflight, marking humanity’s inaugural journey into outer space in 1961.
-
C.
Voskhod spacecraft
The Voskhod spacecraft was a Soviet crewed space capsule that succeeded Vostok and enabled milestones such as the first multi-person crewed mission and the first spacewalk during the early space race.
-
D.
Luna 2
Luna 2 was a Soviet space probe that became the first human-made object to reach the Moon, marking a major milestone in early space exploration.
-
E.
Luna 1
Luna 1 was a Soviet spacecraft launched in 1959 that became the first human-made object to reach the vicinity of the Moon and enter a heliocentric orbit.
- 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: Sputnik 2 Target entity description: Sputnik 2 was a Soviet spacecraft launched in 1957 that became famous for carrying Laika, the first living creature to orbit the Earth.
-
A.
Sputnik 1
Sputnik 1 was the first artificial Earth satellite, launched by the Soviet Union in 1957 and marking the beginning of the space age.
-
B.
Vostok 1
Vostok 1 was the Soviet spacecraft that carried Yuri Gagarin on the first human spaceflight, marking humanity’s inaugural journey into outer space in 1961.
-
C.
Voskhod spacecraft
The Voskhod spacecraft was a Soviet crewed space capsule that succeeded Vostok and enabled milestones such as the first multi-person crewed mission and the first spacewalk during the early space race.
-
D.
Luna 2
Luna 2 was a Soviet space probe that became the first human-made object to reach the Moon, marking a major milestone in early space exploration.
-
E.
Luna 1
Luna 1 was a Soviet spacecraft launched in 1959 that became the first human-made object to reach the vicinity of the Moon and enter a heliocentric orbit.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
Soviet spacecraft
ⓘ
artificial satellite ⓘ spacecraft ⓘ |
| apogeeAltitude | about 1671 km ⓘ |
| carried |
Laika
ⓘ
dog ⓘ |
| carriedInstrument |
biomedical sensors
ⓘ
cosmic ray detectors ⓘ radiation detectors ⓘ solar radiation detectors ⓘ telemetry system ⓘ |
| carriedPayload | life-support system for Laika ⓘ |
| communicationSystem | radio transmitters ⓘ |
| countryOfOrigin | Soviet Union ⓘ |
| decayDate | 1958-04-14 ⓘ |
| designedBy | Sergei Korolev ⓘ |
| first | first spacecraft to carry a living creature into orbit ⓘ |
| followedBy | Sputnik 3 ⓘ |
| heatShield | no heat shield for recovery ⓘ |
| historicalSignificance | early milestone in human spaceflight and space biology ⓘ |
| launchDate | 1957-11-03 ⓘ |
| launchMass | approximately 508 kg ⓘ |
| launchOutcome | success ⓘ |
| launchSite |
Baikonur Cosmodrome
ⓘ
Baikonur Cosmodrome ⓘ
surface form:
Baikonur Cosmodrome Site 1/5
|
| launchVehicle |
R-7 Semyorka rocket
ⓘ
surface form:
Sputnik 8K71PS
|
| launchYear | 1957 ⓘ |
| lifeSupport |
food and water supply for Laika
ⓘ
oxygen regeneration system ⓘ |
| manufacturer | OKB-1 ⓘ |
| missionOutcome | partial success ⓘ |
| missionType |
biosatellite
ⓘ
scientific research ⓘ |
| notableFor |
Sputnik 2
self-linksurface differs
ⓘ
surface form:
carrying Laika, the first living creature to orbit Earth
|
| operator |
OKB-1
ⓘ
Soviet Union ⓘ |
| orbitalInclination | about 65.3 degrees ⓘ |
| orbitalPeriod | about 103.7 minutes ⓘ |
| orbitalRegime | low Earth orbit ⓘ |
| perigeeAltitude | about 225 km ⓘ |
| powerSource | chemical batteries ⓘ |
| precededBy | Sputnik 1 ⓘ |
| program |
Soviet space program
ⓘ
surface form:
Sputnik program
|
| recovery | no recovery planned ⓘ |
| reentryDate | 1958-04-14 ⓘ |
| relatedEvent | Space Race ⓘ |
| spacecraftMass | approximately 508 kg ⓘ |
| spacecraftShape | cone-shaped descent module with cylindrical instrument section ⓘ |
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: Sputnik 2 Description of subject: Sputnik 2 was a Soviet spacecraft launched in 1957 that became famous for carrying Laika, the first living creature to orbit the Earth.
Referenced by (11)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Vanguard 1
subject surface form:
R-7 Semyorka
this entity surface form:
carrying Laika, the first living creature to orbit Earth
subject surface form:
Vostok-L
this entity surface form:
Korabl-Sputnik 2