Starship (spacecraft)

Starship (spacecraft)
Name	Starship
Caption	Starship prototype SN15 launching from Boca Chica, Texas in May 2021.
Manufacturer	SpaceX
Designer	Elon Musk
Country	United States
Applications	Crewed and cargo transport to Earth orbit, the Moon, Mars, and beyond
Status	In development
Built	2012–present
First flight	April 2023 (integrated flight test)
Last flight	March 2024 (integrated flight test)
Launches	4 (integrated tests)
Power	Solar arrays
Capacity crew	Up to 100
Capacity cargo	100–150 t to Low Earth orbit
Dimensions	Height: 121 m (397 ft)
Mass	5,000 t (11,000,000 lb) fully loaded
Derived from	SpaceX Starship development
Related spacecraft	Falcon 9, Dragon 2

Contents

Overview
Development
Design
Missions and testing
Future plans
See also

Starship (spacecraft). Starship is a fully reusable, super heavy-lift launch vehicle and spacecraft system under development by the American aerospace company SpaceX. Designed for missions to Earth orbit, the Moon, Mars, and beyond, it consists of a first-stage booster named Super Heavy and an upper-stage spacecraft also called Starship. The system is intended to eventually replace all of SpaceX's existing launch and spacecraft vehicles, including the Falcon 9 and Dragon 2.

Overview

Conceived by SpaceX founder Elon Musk as a key technology for enabling the colonization of Mars, the Starship system represents a radical departure from traditional expendable launch vehicles. Its primary innovation is full and rapid reusability of both stages, a concept aimed at drastically reducing the cost of access to space. The vehicle is powered by Raptor engines, which burn liquid oxygen and liquid methane. Major development and testing activities are centered at SpaceX's facilities at Boca Chica, Texas, known as Starbase, with additional engine testing occurring in McGregor, Texas. The program has attracted significant attention from NASA, which selected a lunar-optimized Starship variant as the Human Landing System for the Artemis program.

Development

The vehicle's design lineage traces back to concepts like the Mars Colonial Transporter and the Interplanetary Transport System publicly discussed by Elon Musk in the 2010s. A major design shift occurred in 2019 when SpaceX switched the primary structural material from carbon composite to stainless steel alloy 304L, citing advantages in cost, strength at cryogenic temperatures, and heat tolerance. Early prototype construction began at Boca Chica, Texas, with a series of suborbital test flights of Starship prototypes, starting with Starhopper in 2019, followed by numerous high-altitude flights and landing attempts of vehicles like Starship SN8 and Starship SN15. The development program has been characterized by an iterative, test-focused approach, with rapid design changes between prototypes.

Design

The complete Starship launch vehicle stands approximately 121 meters tall, making it the tallest and most powerful rocket ever built. The first stage, Super Heavy, is powered by 33 Raptor engines and is responsible for initial ascent through the atmosphere. The upper stage, the Starship spacecraft itself, is equipped with six Raptor engines—three optimized for sea-level operation and three for vacuum. Its structure is made of stainless steel, featuring a thermal protection system of hexagonal ceramic tiles to withstand re-entry heating. The spacecraft is designed to be refueled in orbit by other Starship tankers, a capability critical for missions beyond Low Earth orbit. The payload bay is voluminous, capable of carrying large satellites, infrastructure for Lunar Gateway, or over 100 passengers in a crew configuration.

Missions and testing

The program's test campaign has progressed from short hops to integrated orbital flight attempts. After numerous high-altitude tests of the Starship upper stage, the first integrated flight test of the full Starship and Super Heavy stack occurred in April 2023 from Boca Chica, Texas. This flight, which ended with a commanded destruction after stage separation issues, provided extensive data for vehicle improvements. Subsequent integrated flight tests in November 2023 and March 2024 demonstrated incremental progress, achieving stage separation and the first in-space reignition of a Raptor engine, though neither flight achieved all test objectives. These missions are closely monitored by the Federal Aviation Administration and have significant implications for future planned missions, including the DearMoon project and NASA's Artemis III lunar landing.

Future plans

SpaceX's stated ambition is to achieve full and rapid reusability, with a vision of launching Starship multiple times per day. Near-term operational goals include deploying the next generation of Starlink satellites and conducting uncrewed cargo missions to the Moon and Mars. The NASA contract for the Human Landing System mandates an uncrewed lunar landing demonstration before a crewed Artemis III mission, which would land astronauts near the lunar south pole. Longer-term objectives, as outlined by Elon Musk, include the establishment of a permanent, self-sustaining human settlement on Mars. The success of the program is also seen as pivotal for broader space infrastructure projects, such as point-to-point travel on Earth and ambitious space-based solar power concepts.