Connect with us

News

SpaceX is about to reuse (part of) a Starship rocket

SpaceX is about to reuse a large section of a Starship rocket for the first time, slightly speeding up work on the next prototype. (NASASpaceflight - bocachicagal)

Published

5 years ago

on

SpaceX has apparently decided to reuse a large section of a Starship prototype that was accidentally destroyed during testing earlier this month, a first for the next-generation rocket.

While not quite the same kind of ‘reuse’ SpaceX has largely pioneered with its vertically-landing Falcon rocket boosters, the company’s decision to reuse an unflown section of a former Starship prototype is yet another sign of its prioritization of efficiency and speed. The Starship SN3 hardware SpaceX has chosen to repurpose on Starship SN4 is relatively straightforward relative to almost all other sections of the newest prototype, but it should still save the company a not-insignificant amount of time and money.

For SpaceX, a combination of extraordinary speed and efficiency at its nascent South Texas Starship factory is allowing the company to accomplish feats that would otherwise be impossible. At least as important, fast and cheap Starship manufacturing has meant that SpaceX is far more willing (perhaps even a little too willing) to take risks with any given prototype, partly explaining why the company is about to complete its fourth full-scale Starship in as many months.

Starship SN3’s skirt – including internal plumbing, landing legs, and more – was removed from the rest of the ship’s remains and moved back to the build site on April 7th. (NASASpaceflight – bocachicagal)

A few days after Starship SN3 was destroyed by some combination of operator error and a badly-designed test, CEO Elon Musk confirmed suspicions that part of the rocket – appearing effectively unscathed – could be reused on the next prototype.

Speaking on April 5th, Musk actually indicated that “much” of Starship SN3’s thrust section could be reused, referring to roughly the bottom third of the rocket’s tank section. Located at the aft (rear) end of Starship, the engine section is where 3-6 Raptor engines attach to the rocket and must safely transfer their thrust through the rest of the vehicle while also feeding those engines propellant and redistributing high-pressure gases to the ship’s main tanks. As a result, engine sections are often some of the most complex and labor-intensive parts of rocket production.

The entirety of Starship SN3’s aft end – including its engine section and skirt – is pictured here during disassembly on April 6th. (NASASpaceflight – bocachicagal)
For Starship SN4, SpaceX had already effectively completed the rocket’s engine section. (NASASpaceflight – bocachicagal)

It appears that Musk wound up being partially correct with his initial judgement. On April 15th, eight days after Starship SN3’s remaining aft section was cut in half, the rearmost half – known as the skirt – was spotted stacked beneath a brand new engine section built for SN4. While confirming that a significant part of SN3 will be reused on SN4, it also indicates that only a less critical SN3 remnant was fit to join SpaceX’s next prototype.

Recently confirmed by Musk after a Teslarati article on the topic, Starship SN3’s skirt section – while not the more complex engine section and thrust structure – has been fitted with six landing legs in anticipation of the first full-scale Starship flight tests.

Advertisement
First spotted by a local resident and photographer, photos from Elon Musk later confirmed that Starship SN3 already has six stubby landing legs installed. (NASASpaceflight – bocachicagal)
The bottom two rings are SN3’s skirt, while the three rings stacked atop it on April 15th house Starship SN4’s brand new engine section, thrust structure, and aft liquid methane tank dome. (NASASpaceflight – bocachicagal)

Aside from landing legs, the reused SN3 skirt also includes substantial structural reinforcements, ground umbilical connections for propellant, power, and telemetry, and built-in hold-down clamps. While fairly small in the scope of an entire Starship, SN4’s adoption of SN3’s skirt should help speed the new rocket towards completion and the start of its first test campaign. Barring surprises, SpaceX will almost certainly move Starship SN4 to its nearby testing facilities within the next several days to a week.

Related Topics:

Eric Ralph is Teslarati's senior spaceflight reporter and has been covering the industry in some capacity for almost half a decade, largely spurred in 2016 by a trip to Mexico to watch Elon Musk reveal SpaceX's plans for Mars in person. Aside from spreading interest and excitement about spaceflight far and wide, his primary goal is to cover humanity's ongoing efforts to expand beyond Earth to the Moon, Mars, and elsewhere.

Advertisement
Comments

News

Two driverless Waymo cars collide at Phoenix Sky Harbor Airport

Two Waymo vehicles collided at Phoenix Sky Harbor Airport in Arizona

Published

2 hours ago

on

July 31, 2025

By

waymo self-driving crash in phoenix
Credit: Reddit | u/HIGH_PRESSURE_TOILET

Two driverless Waymo cars collided at Phoenix Sky Harbor Airport on Wednesday, but details are incredibly slim as the accident has barely been mentioned on many social media platforms.

The video of the two Waymo vehicles was shared on Reddit’s r/SelfDrivingCars subreddit by u/HIGH_PRESSURE_TOILET (an interesting username), showing the two Jaguar I-PACE EVs at a standstill.

They were still making contact in the video, with one front driver-side quarter panel still in contact with the other’s front passenger door:

There are relatively no details on the matter, but we reached out to Waymo earlier today, and an employee was able to share the following information.

Waymo told Teslarati that the accident occurred at a low speed, which is evident based on the lack of major damage done to either vehicle. Waymo did not reveal a specific speed at which the accident occurred, but they did mention it was a low speed.

The message Waymo’s vehicles showed after the accident in Phoenix. (Credit: Reddit | u/HIGH_PRESSURE_TOILET)

Additionally, there were no passengers inside either vehicle at the time of the crash. The cause of the accident is still unknown, but the company is currently investigating any potential causes and aims to have more answers in the coming days.

This is an expected growing pain of driverless vehicles, as autonomous rides are still in their very early phases. We have seen Waymo vehicles encounter a variety of challenges over the past several years, including getting stuck at construction zones in other cities.

Here’s one example of one nearly driving into a trench:

Waymo self driving car almost drives into a trench at construction site

Waymo is in direct competition with Tesla Robotaxi, which is operating in both Austin, Texas, and the San Francisco Bay Area. Waymo operates in both of these areas.

As Waymo updates us with more details, we will share them here and update the article.

Continue Reading

News

Tesla tips off where it wants to expand Robotaxi next

Tesla looks to have its sights on several major cities in the United States to expand Robotaxi operation.

Published

4 hours ago

on

July 31, 2025

By

Credit: @AdanGuajardo/X

Tesla has tipped off where it wants to expand its Robotaxi ride-hailing platform next, as it has launched rides in the San Francisco Bay Area on Thursday.

Austin, Texas, and the Bay Area of California are the two areas where Tesla is currently operating its ride-hailing service. In Austin, there is nobody in the driver’s seat, whereas in California, the rides will operate with someone in the driver’s seat.

This is a regulatory difference, but it is not all bad. California’s geofence for the ride-hailing service is nearly 70 miles long and spans from above San Francisco to the south, all the way down to San Jose.

However, this is not where Tesla is stopping. Expansion is going to occur when Tesla is ready to do so, but it is not being conservative with its expectations.

During last week’s Q2 2025 Earnings Call, Tesla CEO Elon Musk said he expects half of the U.S. population to have access to Robotaxi by the end of the year:

“As we get the approvals and prove out safety, we will be launching the autonomous ride-hailing across most of the country. I think we will probably have autonomous ride-hailing in probably half the population of the US by the end of the year. That’s at least our goal, subject to regulatory approvals. I think we will technically be able to do it. Assuming we have regulatory approvals, it’s probably addressing half the population of the US by the end of the year. We are being very cautious. We do not want to take any chances, so we are going to go cautiously. But the service areas and the number of vehicles in operation will increase at a hyper-exponential rate.”

In order to do this, Tesla will need to expand to additional cities. A recent list of job postings captured by Tesla Yoda on X showed that the automaker is hiring in major metropolitan areas of the U.S. to reach more people.

The cities listed in the job postings are:

  • Palo Alto, California
  • Brooklyn, New York
  • Houston, Texas
  • Dallas, Texas
  • Tempe, Arizona
  • Las Vegas, Nevada
  • Tampa, Florida
  • Orlando, Florida
  • Miami, Florida

Accessing markets like New York City, Dallas, Las Vegas, Miami, Tampa, and Orlando will enable Tesla to gain access to more customers. These are also major hotspots for tourism in the United States, where people might be able to get Tesla Robotaxi rides during trips or vacations.

These cities are unconfirmed to be in Tesla’s sites as it has not made any official statements about where it will expand in the future. However, these job postings are a good indication of where it could be looking in order to expand.

Continue Reading

News

Tesla expands Robotaxi operation to California’s Bay Area

Tesla now has Robotaxi operation in two areas in the United States, as it has officially expanded to the Bay Area of California.

Published

5 hours ago

on

July 31, 2025

By

Credit: Joe Tegtmeyer | X

Tesla has expanded its Robotaxi platform to California’s Bay Area, marking the second major region it will be operating a ride-sharing service in the United States.

The Bay Area is the second area within the U.S. where Tesla has launched the Robotaxi platform, joining Austin, Texas.

However, there are some slight differences between how Tesla Robotaxi is operating in Austin compared to the Bay Area.

Last night, Tesla sent out an update to its Robotaxi app, showing there is now availability to catch a ride from a Model Y in the Bay Area. We received the update on our app:

The geofence for the Bay Area is significantly larger than what Tesla is offering in Austin. In the Bay Area, the geofence spans north of San Francisco and extends south, even below San Jose. In total, it’s about an hour and fifteen minutes from top to bottom, and it is roughly 65 miles in length.

There are some differences between Tesla’s Robotaxi offering in the two cities. In Austin, there is nobody in the driver’s seat of the vehicle, just a Safety Monitor in the passenger seat who is there to take over only in the most extreme circumstances.

In the Bay Area, there will be a human in the driver’s seat, and they will operate a version of Full Self-Driving (Supervised), but current requirements maintain that a human needs to be able to take over.

Tesla is still considering it a portion of its Robotaxi operation, but it is referring to it as a “ride-hailing service.”

Tesla Robotaxi has been in operation in Austin since June 22. Just over a month later, the company is moving forward with a new region and has plans to bring even more cities into the mix in the coming months. Recently, Musk said that he expects half of the U.S. population to have access to Robotaxi by the end of the year.

Continue Reading

Trending