astronomy

List of Starship vehicles

List of Starship vehicles is a astronomy topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand List of Starship vehicles rather than just read about it. In short: Since April 2023, Starship has been launched 13 times, with 8 successes and 5 failures. The vehicle Starship when combined with the Super Heavy booster, also named Starship, has been developed with the intention of lowering launch costs using economies of scale.

Key takeaways

List of Starship vehicles belongs to astronomy; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect List of Starship vehicles to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of List of Starship vehicles from memory before moving on to harder problems.

Reference excerpt

Since April 2023, Starship has been launched 13 times, with 8 successes and 5 failures. The vehicle Starship when combined with the Super Heavy booster, also named Starship, has been developed with the intention of lowering launch costs using economies of scale. SpaceX aims to achieve this by 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. Starship is the latest project in SpaceX's reusable launch system development program and plan to colonize Mars. There are three versions of Starship: Block 1 (also known as Version 1 or V1), Block 2, and Block 3; the proposed variants include a depot, Starship HLS, and Starship Crew. Block 2 Starships are designed to be compatible with Block 1 and with future Block 2 boosters. As of September 2025, Block 1 vehicles have been retired, and four Block 2 vehicles have flown so far. The Starship spacecraft is intended to be reusable, and to be recovered via large arms on the tower capable of catching the descending vehicle.

Development

Starhopper

Construction on the initial steel test article—Starship Hopper, Hopper, Hoppy, or Starhopper—began at Boca Chica, Texas in 2018. Starhopper had a single engine and was test flown to develop landing and low-altitude/low-velocity control algorithms. Starhopper used liquid oxygen (LOX) and liquid methane fuel. After it completed its testing campaign, Starhopper was repurposed as a water tank, weather station and equipment mount for cameras, lights, loudspeakers and a radar system.

Testing It passed tanking tests, wet dress rehearsals, and pre-burner tests. A storm blew over and damaged Starhopper's nose cone. SpaceX continued testing without one. It then passed a static fire test, and in a tethered test reached 1 meter altitude. On July 25, 2019, a Starhopper test flight reached about 20 m (66 ft) altitude, followed by an August 27 test that rose to 150 m (490 ft) and landed about 100 m (330 ft) from the launchpad, the Raptor engine's first use in flight. On September 3, 2024, Starhopper was moved to a parking lot near the launch site.

Mark series (Mk1–Mk4)

SpaceX began building the high-altitude prototype, Mk1 in Texas and Mk2 in Florida, using competing teams that shared progress, insights, and build techniques. The vehicle featured three Raptor methalox engines and was meant to reach an altitude of 5 km (3.1 mi). Mk1 was 9 m (30 ft) in diameter and about 50 m (160 ft) tall, with an empty mass of 200 t (440,000 lb). It was intended for testing flight and reentry profiles, in pursuit of a suborbital flight. When announced, it had three sea-level Raptor engines, two fins each at the front and back, and a nose cone containing cold-gas reaction control thrusters, with all but the aft fins being removed afterwards. On November 20, 2019, Mk1 blew apart during a pressure test. SpaceX began Mk2 in Florida, sharing progress, insights, and build techniques with the Mk1 team in Texas. It was never completed. The Mk3 prototype began construction in late 2019. In December 2019, Elon Musk redesignated Mk3 as Starship SN1, and predicted that minor design improvements would continue through SN20. SpaceX began stacking SN1 in February 2020 after successful pressurization tests on propellant tank prototypes. SN1 was destroyed during a cryogenic pressurization test on February 28, 2020, due to a design flaw in the lower tank thrust structure. Mk4 began construction in Florida in October 2019, but was scrapped after a few weeks.

Hops (SN3–SN6)

SN3 and SN4 SN3 was destroyed during testing on April 3, 2020 due to a failure in the testing configuration.

SN4 passed cryogenic pressure testing on April 26 and two static fires on May 5 and 7: one tested the main tanks, while the other tested the fuel header tank. After uninstalling the engine, a new cryogenic pressure test was conducted on May 19. A leak in the methane fuel piping ignited, causing significant damage to the rocket's base, destroying the control wiring. SN4 was destroyed on May 29, due to a failure with the Ground Support Equipment's quick-disconnect function.

SN5 and SN6 After a static fire test on July 30, SN5 completed a 150-meter flight (August 4) with engine SN27. SN5 was scrapped in February 2021. SN6 completed a static fire on August 24, and a 150-meter hop test flight with engine SN29 on September 3. In January 2021, SN6 was scrapped.

High-altitude test flights (SN8–S23)

SN8 and SN9 SN8 was planned to be built out of 304L stainless steel, although some parts may have used 301L steel. In late October and November, SN8 underwent four static fires. During the third test, on November 12, 2020, debris from the pad caused the vehicle to lose pneumatics. Launch took place on December 9. Launch, ascent, reorientation, and controlled descent were successful, but low pressure in the methane header tank kept the engines from producing enough thrust for the landing burn, destroying SN8 on impact. On December 11, 2020, the stand beneath SN9 failed, causing the vehicle to tip and contact the walls inside the High Bay assembly building. SN9 then required a replacement forward flap. SN9 conducted 6 static fires in January 2021, including three static fires in one day. After these tests, two engines had to be replaced. After struggling to gain U.S. Federal Aviation Administration (FAA) permission, SN9 conducted a 10 km (6.2 mi) flight test on February 2. Ascent, engine cutoffs, reorientation and controlled descent were stable, but one engine's oxygen pre-burner failed, sending SN9 crashing into the landing pad. The landing pad was then reinforced with an additional layer of concrete. After the SN9 failure, all three engines were used to perform the belly flop landing sequence. This offered a failsafe should one fail to ignite.

… excerpt ends here. Continue reading the full article.

Illustrations

Worked examples

Example 1 — a first encounter with List of Starship vehicles

Start with the simplest possible case. Write down what List of Starship vehicles claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In astronomy, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to List of Starship vehicles before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about List of Starship vehicles ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of List of Starship vehicles

In research: List of Starship vehicles appears in astronomy research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses List of Starship vehicles in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: List of Starship vehicles is common in secondary-school and first-year university syllabi. It links to neighbouring topics Lists of rockets, Lists of spacecraft, SpaceX Starship, so understanding it makes those chapters shorter.
In everyday life: Look for List of Starship vehicles outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study List of Starship vehicles in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what List of Starship vehicles means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain List of Starship vehicles out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is List of Starship vehicles in simple terms?

Why does List of Starship vehicles matter?

Because it connects several astronomy ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study List of Starship vehicles?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on List of Starship vehicles.