SpaceX soars through new milestones in test flight of the most powerful rocket ever built

SpaceX successfully launched its Starship on Thursday, marking a significant milestone in space exploration. This fourth test flight showcased the vehicle’s reusability, a key objective for the company. It was also their second uncrewed test of the year, garnering immense anticipation.

The launch took place at the private Starbase facility in Boca Chica, Texas, at 7:50 a.m. CT (8:50 a.m. ET). Millions of viewers tuned in to the live coverage streamed on X, formerly known as Twitter.

The Starship launch system consists of the upper Starship spacecraft and the Super Heavy rocket booster. During the launch, 32 out of the rocket’s 33 engines were ignited, as reported by SpaceX.

This test flight achieved several significant milestones, including the successful survival of the Starship capsule during reentry, even in the face of intense heating in Earth’s atmosphere. Both the capsule and booster also executed a smooth splashdown.
The Super Heavy booster successfully performed a landing burn and safely landed in the Gulf of Mexico after separating from the spacecraft. At the same time, the Starship capsule achieved orbital insertion. During its controlled reentry, the spacecraft’s heat shield faced extreme temperatures, resulting in a vibrant display of plasma. The company’s Starlink satellites enabled a continuous livestream during reentry, although some of the camera view was obstructed by scorching and particulate matter. Nevertheless, there was enough visibility to witness Starship’s anticipated landing burn in the Indian Ocean.


“Despite the loss of several tiles and a damaged flap, the Starship successfully completed a gentle landing in the ocean! Applause and congratulations to the SpaceX team for this remarkable accomplishment!” exclaimed Elon Musk, the founder and CEO of SpaceX, on the social media platform X.

The Starship spacecraft is equipped with approximately 18,000 lightweight, ceramic hexagonal tiles that serve as a protective shield during reentry.

Bill Nelson, the administrator of NASA, also took to X to express his excitement about the flight. He shared a post celebrating the successful test flight of the Starship.

“Congratulations to SpaceX on the successful test flight of the Starship this morning! This brings us one step closer to the ambitious goal of returning humanity to the Moon through the Artemis mission, and then setting our sights on Mars,” Nelson posted.

The launch was originally scheduled for 7:20 a.m. CT (8:20 a.m. ET), but SpaceX’s red team had to address a ground-side issue, which caused a delay, as mentioned in the company’s livestream.
The flight test is taking place just two days after SpaceX received approval from the Federal Aviation Administration, which grants licenses for commercial rocket launches. This test also coincides with the successful launch of Boeing’s Starliner, under NASA’s Commercial Crew Program, carrying two experienced NASA astronauts to the International Space Station.

Each test flight of Starship has unique goals that build upon the knowledge gained and milestones achieved in previous flights.

For this particular flight, the Starship team has implemented software and hardware upgrades to the launch system based on the lessons learned from the third flight.
According to SpaceX, the fourth flight of Starship is intended to bring us closer to a future where reusable spacecraft is the norm. The company is actively developing Starship and conducting test flights to gather valuable insights and improve their fully reusable transportation system. This system is designed to transport both crew and cargo to destinations such as Earth orbit, the Moon, Mars, and beyond.

In the previous attempts to achieve orbital speeds in 2023, there were two unsuccessful flights that resulted in explosions and the destruction of the spacecraft and booster. However, SpaceX sees these incidents as opportunities for learning and improving their designs. Embracing these fiery mishaps allows them to quickly implement necessary changes that will ultimately lead to better outcomes.
SpaceX has emphasized its commitment to rapid rocket development, employing a strategy known as “rapid spiral development.” This approach involves quickly building prototypes and intentionally subjecting them to destruction in order to gain valuable insights for constructing improved versions. By utilizing this method, SpaceX can accelerate the development process compared to relying solely on ground tests and simulations.

Following the initial explosive test flights of the Starship, the company promptly reframed these incidents as valuable learning experiences.

During the third test flight, which lasted nearly an hour and took place in March, the Starship accomplished several significant milestones before ultimately disintegrating upon reentry, instead of successfully landing in the Indian Ocean.

Firstly, the Starship achieved speeds that approached those required for orbital insertion, a task typically necessitating velocities exceeding 17,500 miles per hour (28,000 kilometers per hour). Although the Starship did not enter orbit during this particular flight, it successfully reached its intended orbital speeds.
During a crucial test, the Starship spacecraft successfully opened and resealed its payload door, which is necessary for deploying satellites into space once it reaches orbit.

In addition, SpaceX conducted a propellant transfer demonstration, which involved moving propellant from one tank to another on board the Starship vehicle. This test was designed to simulate refueling procedures for future missions while the spacecraft is in orbit.

However, during reentry into Earth’s atmosphere, the Starship emitted a bright halo of red plasma due to the extreme heat and pressure. Unfortunately, communication with the spacecraft was lost at this point.

It is important to note that SpaceX did not intend to recover the Starship after this flight test.

Furthermore, the Super Heavy booster was expected to autonomously and safely land in the ocean. However, all of its engines failed to ignite, resulting in the loss of the booster.
However, both the Starship spacecraft and booster exceeded the previous flight tests in 2023 in terms of distance traveled.

In preparation for Thursday’s flight, SpaceX incorporated various upgrades and made hardware and software changes to ensure the booster engines ignited successfully. Additionally, extra thrusters were installed on the Starship to prevent any unforeseen rolling, a problem encountered during the third flight.

The success of the Starship is of immense importance as it is pivotal to SpaceX’s primary objective of sending humans to Mars, a mission that CEO Elon Musk has consistently emphasized as the company’s founding purpose.


NASA has chosen the Starship spacecraft to play a crucial role in its Artemis program, which aims to send humans back to the moon after more than 50 years. According to NASA’s plan, Starship will be responsible for transporting astronauts from a spacecraft in lunar orbit to the moon’s surface, marking the final stage of a crewed mission. This decision comes as the United States competes with China to establish a permanent lunar base and lead the way in deep-space colonization.

In the future, milestones such as the successful transfer of propellant during the third flight test will be crucial for the advancement of Starship. Ensuring that the spacecraft is fully fueled will be of utmost importance for its upcoming high-profile missions.
As part of the Artemis program, when Starship embarks on a trip to the moon, it will need to stay in orbit near Earth while SpaceX launches additional support vehicles to deliver fuel to the spacecraft. Multiple refueling trips may be necessary for the journey to the moon.

The first manned landing under the Artemis program is scheduled to take place in September 2026.

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