SpaceX Starship

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SpaceX Starship development history
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Starship
Starship prototype in launch configuration: Starship spacecraft sits on top of Super Heavy.
FunctionGeneral-purpose and mass-produced launch vehicle
Manufacturer
Country of origin
  • United States
Project costAt least US$5 billion[1]
Size
Height121.3 m (398 ft)
Diameter9 m (30 ft)
Mass5,000 t (11,000,000 lb)
Capacity
Payload to LEO
MassReusable: 100–150 t
(220,000–331,000 lb)
Volume1,000 m3 (35,000 cu ft)
Associated rockets
Derivative workStarship HLS
Comparable
Launch history
StatusIn development
Launch sites
Raptor vacuum engines
Maximum thrust1,250 tf (12,300 kN; 2,760,000 lbf)
Specific impulse327 s (3.21 km/s) (sea-level)
380 s (3.7 km/s) (vacuum)
PropellantLiquid oxygen / Methane

Starship is a two-stage

reusing both rocket stages, increasing payload mass to orbit, increasing launch frequency, creating a mass-manufacturing pipeline, and adapting it to a wide range of space missions.[3] Starship is the latest project in SpaceX's decades-long reusable launch system development program and ambition of colonizing Mars
.

Starship launch vehicle has two stages: the

reenters the atmosphere, and propulsively lands. Lunar and depot variants do not need to reenter the atmosphere and thus do not have a thermal protection system
. Following a 'belly flop' maneuver, where the spacecraft turns from a horizontal to a vertical orientation, the spacecraft touches down via thrust power.

As of 2024, Starship is in development with an iterative and incremental approach, involving test flights of prototype vehicles, which often end in the destruction of the test vehicle. As a successor to SpaceX's Falcon 9 and Falcon Heavy rockets, Starship will perform a wide range of space missions. For missions to further destinations, such as geosynchronous orbit, the Moon, and Mars, Starship will rely on orbital refueling from the tanker variants. Starship will deploy SpaceX's second-generation Starlink satellite constellation, and the Starship HLS variant will land astronauts on the Moon as part of the Artemis program, starting with Artemis 3 in 2026.

Description

When stacked and fully fueled, Starship has a mass of approximately 5,000 t (11,000,000 lb),

low earth orbit and 27 t (60,000 lb) to geostationary transfer orbit.[12][13]

Super Heavy booster

The first-stage booster, named Super Heavy, is 71 m (233 ft) tall and 9 m (30 ft) wide.[5] It contains 33 Raptor engines arranged in three concentric rings.[14] The outermost ring of 20 engines are of the "Raptor Boost" configuration, which lack gimbal actuators to save weight and cost.[15] At full power, all engines combined produce 74,400 kN (16,700,000 lbf) of thrust.[16]

The booster's tanks can hold 3,400 t (7,500,000 lb) of propellant, consisting of 2,650 t (5,840,000 lb) of liquid oxygen and 750 t (1,650,000 lb) of liquid methane.

interstage 20 t (44,000 lb).[2]

The booster uses four electrically actuated

hot staging;[19] a type of rocket staging in which the upper stage fires its engines before separating from the first-stage rather than after.[20]

Large steel cylinder with complex engine mounts and wiring
Underside of the Super Heavy booster prior to engine installation

Starship spacecraft