Mars 4
E999552
UNEXPLORED
Mars 4 was a Soviet Mars orbiter mission launched in 1973 as part of the Mars program, intended to study the Martian atmosphere and surface.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Mars 4 canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T12639351 — 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: Mars 4 Context triple: [Mars 3, followedBy, Mars 4]
-
A.
Mars 3
Mars 3 was a Soviet spacecraft that became the first spacecraft to achieve a soft landing on Mars, though it failed shortly after touchdown.
-
B.
Mars 2
Mars 2 was a Soviet space probe launched in 1971 as part of the Mars program, notable for being the first human-made object to reach the surface of Mars, though its lander crashed.
-
C.
Phobos 2
Phobos 2 was a Soviet space probe launched in 1988 to study Mars and its moon Phobos as part of the Phobos program.
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D.
Venera 13
Venera 13 was a Soviet space probe that successfully landed on Venus in 1982, transmitting the first color images and extensive data from the planet’s surface.
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E.
Venera 4
Venera 4 was a Soviet space probe that became the first spacecraft to successfully enter another planet’s atmosphere and transmit in-situ data, specifically from Venus, in 1967.
- 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: Mars 4 Target entity description: Mars 4 was a Soviet Mars orbiter mission launched in 1973 as part of the Mars program, intended to study the Martian atmosphere and surface.
-
A.
Mars 3
Mars 3 was a Soviet spacecraft that became the first spacecraft to achieve a soft landing on Mars, though it failed shortly after touchdown.
-
B.
Mars 2
Mars 2 was a Soviet space probe launched in 1971 as part of the Mars program, notable for being the first human-made object to reach the surface of Mars, though its lander crashed.
-
C.
Phobos 2
Phobos 2 was a Soviet space probe launched in 1988 to study Mars and its moon Phobos as part of the Phobos program.
-
D.
Venera 13
Venera 13 was a Soviet space probe that successfully landed on Venus in 1982, transmitting the first color images and extensive data from the planet’s surface.
-
E.
Venera 4
Venera 4 was a Soviet space probe that became the first spacecraft to successfully enter another planet’s atmosphere and transmit in-situ data, specifically from Venus, in 1967.
- F. None of above. chosen
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.