Starhopper
E58703
Starhopper is SpaceX’s early prototype test vehicle used to validate key technologies for the Starship launch system, particularly its Raptor engines and vertical takeoff and landing capabilities.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Starhopper canonical | 2 |
| Big Falcon Rocket | 1 |
| Starhopper test article | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T464446 — 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: Starhopper Context triple: [Starship launch system, technologyDemonstrator, Starhopper]
-
A.
The Spaceship Company
The Spaceship Company is an aerospace manufacturing firm co-founded by Virgin Galactic to build and test suborbital spaceplanes and related spacecraft.
-
B.
Titan IIIE
Titan IIIE was a U.S. expendable launch vehicle variant of the Titan III family, equipped with a Centaur upper stage and used in the 1970s to send deep-space probes such as Voyager 1 on interplanetary trajectories.
-
C.
Cassin
Cassin is a French surname most notably borne by René Cassin, a Nobel Peace Prize–winning jurist and co-author of the Universal Declaration of Human Rights.
-
D.
Swoop
Swoop is the Philadelphia Eagles’ official bald eagle mascot, known for entertaining fans at games and team events.
-
E.
Mission: SPACE
Mission: SPACE is a spaceflight-simulation attraction at EPCOT that immerses guests in a realistic, high-intensity mission to Mars experience.
- 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: Starhopper Target entity description: Starhopper is SpaceX’s early prototype test vehicle used to validate key technologies for the Starship launch system, particularly its Raptor engines and vertical takeoff and landing capabilities.
-
A.
The Spaceship Company
The Spaceship Company is an aerospace manufacturing firm co-founded by Virgin Galactic to build and test suborbital spaceplanes and related spacecraft.
-
B.
Titan IIIE
Titan IIIE was a U.S. expendable launch vehicle variant of the Titan III family, equipped with a Centaur upper stage and used in the 1970s to send deep-space probes such as Voyager 1 on interplanetary trajectories.
-
C.
Cassin
Cassin is a French surname most notably borne by René Cassin, a Nobel Peace Prize–winning jurist and co-author of the Universal Declaration of Human Rights.
-
D.
Swoop
Swoop is the Philadelphia Eagles’ official bald eagle mascot, known for entertaining fans at games and team events.
-
E.
Mission: SPACE
Mission: SPACE is a spaceflight-simulation attraction at EPCOT that immerses guests in a realistic, high-intensity mission to Mars experience.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
prototype rocket
ⓘ
subscale Starship prototype ⓘ test vehicle ⓘ |
| associatedWith | Elon Musk ⓘ |
| capabilityTested |
attitude control during low-altitude flight
ⓘ
autonomous landing ⓘ engine start and shutdown sequences ⓘ thrust vector control ⓘ |
| countryOfOrigin |
United States of America
ⓘ
surface form:
United States
|
| designFeature |
cylindrical tank section with nose cap
ⓘ
landing legs ⓘ single-engine configuration ⓘ stainless steel structure ⓘ |
| engineType | methane-fueled full-flow staged combustion engine ⓘ |
| followedBy |
Starship launch system
ⓘ
surface form:
Starship Mk1 prototype
Starship launch system ⓘ
surface form:
Starship SN-series prototypes
|
| fuelType | methalox ⓘ |
| launchSite |
Boca Chica, Texas
ⓘ
Starbase, Boca Chica, Texas ⓘ
surface form:
SpaceX Boca Chica launch site
Boca Chica, Texas ⓘ
surface form:
Starbase, Texas
|
| locationAfterRetirement |
Starbase, Boca Chica, Texas
ⓘ
surface form:
SpaceX Boca Chica facility
|
| manufacturer | SpaceX ⓘ |
| notableAspect | first flying prototype of the Starship architecture ⓘ |
| operator | SpaceX ⓘ |
| organization |
Elon Musk
ⓘ
surface form:
foundedBy Elon Musk
|
| partOf |
Starship launch system
ⓘ
surface form:
Starship launch system development program
|
| precededBy |
Falcon 9 rocket
ⓘ
surface form:
Falcon 9 reusable first stage tests
Grasshopper ⓘ |
| primaryPurpose |
Raptor engine testbed
ⓘ
technology demonstrator ⓘ vertical takeoff and landing validation ⓘ |
| program |
Starship launch system
ⓘ
surface form:
SpaceX Starship development program
|
| propellant |
liquid methane
ⓘ
liquid oxygen ⓘ |
| propulsion | Raptor engine ⓘ |
| relatedTo |
Super Heavy booster
ⓘ
surface form:
SpaceX Starship
Super Heavy booster ⓘ
surface form:
SpaceX Super Heavy booster
|
| roleInProgram | early Starship development prototype ⓘ |
| status | retired test article ⓘ |
| testCampaign | hop tests up to approximately 150 meters altitude ⓘ |
| testedTechnology |
Raptor engine integration with vehicle
ⓘ
flight software for Starship-class vehicles ⓘ ground support systems for methane-oxygen vehicles ⓘ |
| usedFor |
engine gimbal testing
ⓘ
guidance and control validation ⓘ hover tests ⓘ low-altitude flight tests ⓘ throttle control testing ⓘ |
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: Starhopper Description of subject: Starhopper is SpaceX’s early prototype test vehicle used to validate key technologies for the Starship launch system, particularly its Raptor engines and vertical takeoff and landing capabilities.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Big Falcon Rocket
this entity surface form:
Starhopper test article