Connect with us

News

SpaceX tweaks Starship's Super Heavy rocket booster as design continues to evolve

CEO Elon Musk says SpaceX is continuing to tweak the design of Starship and its Super Heavy booster. (SpaceX)

Published

5 years ago

on

CEO Elon Musk says that SpaceX continues to evolve the design of its next-generation Starship spacecraft and Super Heavy rocket booster, a process of continuous improvement the company has successfully used for a decade.

Designed to place more than 100 metric tons (220,000 lb) of payload into Low Earth Orbit (LEO), Starship would effectively double (and possibly triple) the expendable performance of SpaceX’s existing Falcon Heavy rocket. Critically, it would be able to dramatically outclass Falcon Heavy (and Falcon 9 even more so) in a fully reusable configuration, meaning that both the Starship upper stage and Super Heavy booster could be recovered and reused.

Since SpaceX first publicly revealed its next-generation launch vehicle and Mars ambitions in September 2016, the path to realizing the dream of a fully-reusable super heavy-lift launch vehicle has been decidedly windy. After making the radical decision to move entirely from carbon composites to stainless steel in late 2018, the Starship design has remained relatively similar, coalescing around a specific concept that has matured to full-scale tank tests. Now, Musk says that Super Heavy’s design was tweaked slightly to make the booster even taller than before, while he later noted that Starship’s design also continues to “[evolve] rapidly.”

According to Musk, the Super Heavy booster will be stretched by a steel ring or two, reaching a new height of ~70m (230 ft). In other words, Starship’s first stage alone will measure as tall as the entirety of a Falcon 9 or Falcon Heavy rocket – first stage, second stage, and payload fairing included. Powered by up to 37 Raptor engines, a Super Heavy booster could produce more than ~90,000 kN (19,600,000 lbf) of thrust at liftoff – an incredible 12 times as much thrust as SpaceX’s workhorse Falcon 9 rocket.

Starship, meanwhile, will be a beast of an orbital-class upper stage on its own, measuring at least 50m (165 ft) tall and weighing some 1350 metric tons (3 million lb) fully-fueled. Stacked on top of Super Heavy, a Starship ‘stack’ would reach a staggering 120m (395 ft) and weigh more than 5000 metric tons (11 million lb) once loaded with liquid oxygen and methane propellant.

Advertisement
(SpaceX)
A Super Heavy booster begins its boostback burn after sending a Starship on its way to orbit. (SpaceX)

In simple terms, Starship/Super Heavy should be the tallest, heaviest, and most powerful launch vehicle ever assembled once it heads to the launch pad for the first time. While SpaceX is making great daily progress its ever-growing South Texas rocket factory, built up from next to nothing in a matter of months, it could still be quite some time before that milestone is within reach.

SpaceX’s process of continuously tweaking and improving the design and production of its rockets does typically have that effect. However, it’s more a symptom of the company’s approach to hardware and software development. Instead of working slowly and carefully from nothing to a preconceived finished product, SpaceX typically seeks to design, build, and test the minimum viable product, gradually improving (or entirely replacing) past ideas, designs, and hardware until overarching goals are fully achieved.

With Falcon 9 and Falcon Heavy, this meant beginning with Falcon 1, a dead-simple proof-of-concept rocket. After successfully reaching orbit, SpaceX expanded its Falcon 9 development program, itself focused initially on the minimum viable product – a full-scale expendable rocket. Since Elon Musk founded SpaceX in 2002, the goal has always been to build a fully-reusable rocket – the company has simply chosen the far more sustainable and practical approach of tackling only a select few problems at a time.

Falcon 9 began flying as a fully-expendable rocket in 2010. Ten years later, a Falcon 9 booster is about to attempt its fifth orbital-class launch. (Richard Angle)

The Starship and Falcon development programs aren’t directly comparable but it’s safe to say that Starship is currently still in the very early stages of hardware development. Shortly after revealing Super Heavy’s height growth, Musk noted that Starship’s design is also being tweaked.

Sketching out a rough series of upgrades that could feasibly be made to the reusable spacecraft’s currently design, Musk thinks that Starship’s conical tank domes (and thus Super Heavy’s, too) could be flattened. That might allow an extra ~3m (10 ft) of propellant tank space to be squeezed into the same 50m Starship length, improving performance by simply using the vehicle’s fixed volume more efficiently.

With a nascent factory quite literally churning out Starship hardware, these tweaks are a whole different animal. Thanks to data and insight gathered from testing actual full-scale Starship tanks, up to and including fully-assembled tank sections, SpaceX will be able to guide its continuous improvement with even greater precision, honing in on the next-generation rocket’s orbital launch debut.

Check out Teslarati’s Marketplace! We offer Tesla accessories, including for the Tesla Cybertruck and Tesla Model 3.

Advertisement
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.

Comments

News

Here’s where Waymo is launching autonomous robotaxis next

Waymo has its sights set on three new U.S. cities in the months to come.

Published

5 hours ago

on

March 25, 2025

By

Credit: Waymo

Google parent company Waymo has announced plans to bring its self-driving robotaxis to yet another U.S. city, adding to the list of those it plans to deploy the service to in the next several months.

On Tuesday, Waymo announced in a press release that it will be bringing its autonomous ride-hailing vehicles to Washington D.C. in 2026, after it recently announced plans to start deploying the services in Atlanta, Georgia, and Miami, Florida, sometime in 2025. The D.C. services will utilize the Waymo One app, unlike some of the cities which will roll out through a partnership agreement.

“Waymo One is making fully autonomous driving a reality for millions of people across the U.S.” said Tekedra Mawakana, Waymo Co-CEO. “We’re excited to bring the comfort, consistency, and safety of Waymo One to Washingtonians, those who work and play in the city every day, and the millions of people from around the world who travel to the District every year.”

The company says it plans to continue working closely with legislators on regulations needed to operate driverless vehicles in D.C. Additionally, Waymo says it’s currently operating over 200,000 fully autonomous, paid driverless ride-hails per week, as Tesla and others aim to enter the commercial robotaxi space in the coming months.

READ MORE ON WAYMO: Ex-Waymo CEO dismisses Tesla, Cybercab: ‘They’re a car company with a driver-assist system’

“I’ve experienced firsthand how safely the Waymo Driver operates around pedestrians, cyclists, and other vulnerable road users,” writes Jonathan Adkins, the CEO of the Governors Highway Safety Association. “Waymo has worked with GHSA and our first responder network as they’ve expanded their service, always putting safety first. As someone who walks to work almost every day, I’m excited to share the road with Waymo in Washington, D.C.”

Waymo also recently launched its robotaxi services will deploy in a partnership with Uber in Austin, Texas, where Tesla also has a so-called Gigafactory and plans to roll out its own robotaxi services later this year. The company currently operates paid driverless ride-hailing or early testing in the following cities, primarily in the U.S.:

The news also comes as Tesla aims to roll out its first unsupervised drives with its in-house Full Self-Driving (FSD) software this summer, along with rolling out initial robotaxi ride-hailing services. While the company doesn’t currently operate any paid ride-hailing like Waymo One, the company’s vehicles can generate real-time training data from drivers with FSD Supervised engaged.

Waymo study analyzes collisions with vulnerable road users

Continue Reading

News

Tesla Superchargers open to Hyundai’s EVs in the U.S.

Hyundai and Genesis are the latest brands to gain access to Tesla’s charging network.

Published

7 hours ago

on

March 25, 2025

By

Tesla’s Superchargers are now officially open to Hyundai’s electric vehicles (EVs) across the U.S., adding to the wave of auto brands that can now charge on the once-exclusive network.

In a press release on Tuesday, Hyundai announced that owners of the Kona electric, Ioniq hatchback, Ioniq 5, Ioniq 5 N, and Ioniq 6, can charge at Tesla Superchargers in the U.S. using a CCS to NACS adapter, which the company is offering complimentary to owners. The news is set to give access to roughly 20,000 Superchargers in the U.S., as Tesla continues to roll out access to non-Tesla EV brands across the industry.

Hyundai says that those who purchased their EVs prior to January 31, 2025 will begin receiving emails on how to claim the free NACS adapters starting the week of April 7. The news also comes after Hyundai was the first automaker to debut a native NACS port with the Ioniq 5, beginning late last year.

READ MORE ON HYUNDAI: Hyundai dives into the robotaxi business with TX-based startup

“Starting today, more Hyundai EV customers will have access to 20,000 Tesla Superchargers across North America, doubling their fast-charging options,” says Olabisi Boyle, Hyundai North America’s SVP of product planning and mobility strategy. “This move improves the public charging experience by giving our customers even more choice. It’s a vital part of our commitment to ease America’s transition to electric vehicle ownership.”

Currently, the news only applies to Superchargers in the U.S., though one spokesperson from the automaker told Teslarati that more details are expected to come about the launch of access in Canada later this year.

Tesla now lists Hyundai, and its subsidiary Genesis, on its website as EV brands that are able to charge at its Superchargers, along with several others which have been added in the past several months such as Polestar, Volvo, Mercedes-Benz, Lucid, and Rivian, among others.

Hyundai also had record auto sales in the U.S. in 2024, with general retail sales up 4 percent and EV sales up 13 percent year over year.

Hyundai prepares for Trump’s tariffs with billion-dollar investment in the United States

Continue Reading

Elon Musk

Tesla CEO Elon Musk’s simple message to vandals

Published

7 hours ago

on

March 25, 2025

By

Justin Pacheco, Public domain, via Wikimedia Commons

Tesla CEO Elon Musk had a simple and straightforward message to the vandals who continue to damage cars, showrooms, and Superchargers that the company and its owners utilize during an All-Hands meeting last week.

For the first time, Tesla and Musk broadcasted on X an All-Hands meeting the company held with its employees.

It seemed to be a justified response to skeptics and investors who have said that Musk has spent more time worrying about the Department of Government Efficiency (DOGE) than Tesla.

During the meeting, Musk showed the company’s roadmap for the remainder of 2025 and into 2026 and aimed to resolve any sort of skepticism regarding his commitment. He told the employees to “hang onto their stock,” and commented on Tesla’s future impact:

“It’s very difficult like for people in the stock market, especially those that look in the rearview mirror — which is most people — to imagine a future where suddenly a 10 million vehicle fleet has five to ten times the usefulness. It’s so profound and there’s no comparison with anything in the past that it does not compute. But it will compute in the future.”

However, Musk did not stop there. He also had a message for those who have gone out of their way to key, damage, and sometimes even destroy Tesla vehicles and showrooms.

Several locations have been hit with gunfire, Molotov cocktails, and other things, while owners are reporting petty vandalism like keying and slashing tires more frequently now than ever.

Musk’s message to the vandals was simple:

“This is psycho. Stop being psycho!”

He continued:

“If you read the news, it feels like, you know, Armageddon. It’s like, I can’t walk past the TV without seeing a Tesla on fire. Like, what’s going on? Some people, it’s like, listen, I understand if you don’t wanna buy our product, but you don’t have to burn it down. That’s a bit unreasonable.”

Tesla’s biggest haters have continued to spew violence toward the company and owners of its cars, with some even putting on bumper stickers that read things like “I bought this before Elon went crazy!” to hopefully divert attackers.

The company also has the help of the federal government. The FBI has already established a task force to help investigate instances of vandalism and violence against Tesla. Additionally, President Trump has said attacks against the company are being considered as domestic terrorism.

Continue Reading

Trending