Euclid spacecraft
E292070
The Euclid spacecraft is a European Space Agency space telescope designed to map the geometry of the dark universe by studying dark matter and dark energy through precise measurements of the shapes and distances of billions of galaxies.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Euclid (NASA participation) | 1 |
| Euclid space telescope | 1 |
| Euclid spacecraft canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2706000 — 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: Euclid spacecraft Context triple: [Sun–Earth L2, usedBy, Euclid spacecraft]
-
A.
Planck spacecraft
The Planck spacecraft was a European Space Agency space observatory designed to study the cosmic microwave background radiation with unprecedented precision to improve our understanding of the early universe and cosmology.
-
B.
Hermes spacecraft
The Hermes spacecraft is the advanced interplanetary vessel in Andy Weir’s novel and its film adaptation "The Martian," used by NASA’s Ares crew for travel between Earth and Mars.
-
C.
Gaia observatory
The Gaia observatory is a European Space Agency space telescope designed to create the most precise 3D map of the Milky Way by measuring the positions, distances, and motions of over a billion stars.
-
D.
BepiColombo mission
The BepiColombo mission is a joint ESA–JAXA spacecraft mission designed to study the planet Mercury’s composition, magnetic field, and environment through dual orbiters.
-
E.
Rosetta mission
The Rosetta mission was a European Space Agency spacecraft project that orbited and deployed a lander onto comet 67P/Churyumov–Gerasimenko to study its composition and behavior in unprecedented detail.
- 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: Euclid spacecraft Target entity description: The Euclid spacecraft is a European Space Agency space telescope designed to map the geometry of the dark universe by studying dark matter and dark energy through precise measurements of the shapes and distances of billions of galaxies.
-
A.
Planck spacecraft
The Planck spacecraft was a European Space Agency space observatory designed to study the cosmic microwave background radiation with unprecedented precision to improve our understanding of the early universe and cosmology.
-
B.
Hermes spacecraft
The Hermes spacecraft is the advanced interplanetary vessel in Andy Weir’s novel and its film adaptation "The Martian," used by NASA’s Ares crew for travel between Earth and Mars.
-
C.
Gaia observatory
The Gaia observatory is a European Space Agency space telescope designed to create the most precise 3D map of the Milky Way by measuring the positions, distances, and motions of over a billion stars.
-
D.
BepiColombo mission
The BepiColombo mission is a joint ESA–JAXA spacecraft mission designed to study the planet Mercury’s composition, magnetic field, and environment through dual orbiters.
-
E.
Rosetta mission
The Rosetta mission was a European Space Agency spacecraft project that orbited and deployed a lander onto comet 67P/Churyumov–Gerasimenko to study its composition and behavior in unprecedented detail.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
European Space Agency spacecraft
ⓘ
space observatory ⓘ space telescope ⓘ |
| attitudeControl | three-axis stabilized ⓘ |
| collaboration |
ESA member states
ⓘ
NASA ⓘ |
| cosmicLocation |
Sun–Earth L2 point
ⓘ
linked to:
Sun–Earth L2
|
| dataDownlink | high-gain antenna ⓘ |
| dataType |
imaging data
ⓘ
spectroscopic data ⓘ |
| fieldOfView | about 0.5 square degrees ⓘ |
| instrument |
NISP instrument
ⓘ
VIS instrument ⓘ |
| launchCountry |
United States
ⓘ
linked to:
United States of America
|
| launchDate | 2023-07-01 ⓘ |
| launchSite | Cape Canaveral Space Force Station ⓘ |
| launchVehicle |
SpaceX Falcon 9
ⓘ
linked to:
Falcon 9 rocket
|
| manufacturer |
Thales Alenia Space
ⓘ
linked to:
Thales Alenia Space Italia
|
| massAtLaunch | approximately 2,000 kg ⓘ |
| missionDurationDesign | 6 years ⓘ |
| missionType |
cosmology mission
ⓘ
dark energy survey mission ⓘ dark matter survey mission ⓘ |
| namedAfter |
Euclid of Alexandria
ⓘ
linked to:
Euclid
|
| NISPInstrumentFullName |
Near-Infrared Spectrometer and Photometer
ⓘ
linked to:
Near Infrared Spectrometer
|
| operator | European Space Agency ⓘ |
| orbitType | halo orbit around Sun–Earth L2 ⓘ |
| powerSource | solar arrays ⓘ |
| primaryObjective |
map geometry of the Universe
ⓘ
measure distances of distant galaxies ⓘ measure shapes of distant galaxies ⓘ study dark energy ⓘ study dark matter ⓘ |
| program |
ESA Cosmic Vision programme
ⓘ
linked to:
ESA Science Programme
|
| projectPhase | operational ⓘ |
| scienceArchive | Euclid Science Archive ⓘ |
| scienceGoal |
constrain dark energy equation of state
ⓘ
map large-scale structure of the Universe ⓘ measure baryon acoustic oscillations ⓘ measure weak gravitational lensing ⓘ test general relativity on cosmological scales ⓘ |
| spaceAgency | European Space Agency ⓘ |
| surveyArea | about 15,000 square degrees ⓘ |
| targetPopulation | billions of galaxies ⓘ |
| telescopeAperture | 1.2 m ⓘ |
| telescopeType | Korsch three-mirror anastigmat ⓘ |
| VISInstrumentFullName | Visible Instrument ⓘ |
| wavelengthCoverage |
near-infrared
ⓘ
visible ⓘ |
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: Euclid spacecraft Description of subject: The Euclid spacecraft is a European Space Agency space telescope designed to map the geometry of the dark universe by studying dark matter and dark energy through precise measurements of the shapes and distances of billions of galaxies.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.