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Elon Musk teases expendable version of SpaceX’s reusable Starship rocket

(SpaceX)

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SpaceX CEO Elon Musk says that the company could eventually develop an expendable version of its next-generation Starship rocket.

Starship is extraordinarily ambitious. Even before considering the unproven concepts of orbital propellant refilling and full, rapid reusability that are central to the full system, Starship is a beast. The rocket measures 120 meters (~390 ft) tall and is theoretically capable of producing up to 7590 tons (~16.7M lbf) of thrust at sea level. It’s larger, taller, heavier, and more powerful than any other launch vehicle in history. 33 Raptor 2 engines power Starship’s Super Heavy booster – also more than any other rocket.

Once optimized, SpaceX says that Starship can launch up to 150 tons (330,000 lbs) to low Earth orbit while still recovering the orbital ship and suborbital booster for reuse. CEO Elon Musk has stated that Starship reuse will eventually take hours, enabling multiple flights per day for each ship and booster and dropping the marginal cost of each launch to just a few million dollars.

In comparison, SpaceX’s workhorse Falcon 9 rocket uses simpler Merlin 1D engines, has just 10 of those engines to Starship’s 39 Raptors, produces about 10 times less thrust at liftoff, and can launch about 11% as much payload to orbit while expending its upper stage. Even then, Musk reported in mid-2020 that the marginal cost of a Falcon 9 launch was $15 million – impressively low but still a vivid demonstration of just how far Starship has to go.

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Starship’s orbital upper stage is roughly the size (and far heavier and more powerful than) as an entire two-stage Falcon 9 rocket. (BocaChicaGal/Richard Angle)

Simply ensuring that Starship can reach orbit at all is a major challenge. Successfully recovering Starship and Super Heavy after the fact may be an even bigger challenge and cannot be fully demonstrated until the rocket can consistently reach orbit. SpaceX won’t be able to reuse Starship until it can consistently recover ships and boosters from orbital launches. And there’s no guarantee that early prototypes will be reusable even if they’re recovered.

Until reusability is demonstrated, every “Starship upper stage” will be functionally expendable whether or not Elon Musk wants it to be. Musk likely means that SpaceX may or may not decide to develop a Starship upper stage custom-built for expendable missions. Such a stage would likely take Starship, remove everything extraneous, and reduce its mass as much as possible. Musk has proposed something similar before, noting that SpaceX could develop a “lightened” version of Starship “with no heat shield or fins/legs” for expendable, interplanetary launches.

While SpaceX is closer than ever, it has still never attempted an orbital Starship launch or reused a Starship. (SpaceX)

Further to the contrary, SpaceX’s Starbase factory is already building multiple intentionally-expendable Starships. Ship 26 and Ship 27 feature no thermal protection, have no heat shield tiles, and will not be fitted with flaps, making them impossible to recover or reuse. More likely than not, they will be used to test other crucial Starship technologies like orbital refilling and cryogenic fluid management.

Meanwhile, SpaceX’s multibillion-dollar contract to use Starship to return NASA astronauts to the Moon revolves around a depot ship variant that will store propellant in orbit and cannot return to Earth. The first few Starship Moon landers may also be functionally expendable and only used for one astronaut landing apiece. In short, SpaceX already has extensive plans to build variants of Starship that are either fully expendable or can only be reused in orbit.

The Starship variants required for SpaceX’s NASA Moon landing contracts.

Single-use Starships

In early 2023, SpaceX updated the Starship section of its website, revealing that an expendable version of the rocket will be able to launch up to 250 metric tons (~550,000 lbs) to low Earth orbit in a single launch. Saturn V, the next most capable expendable rocket, could launch up to 118 tons (~260,000 lbs) to LEO and cost $1-2 billion per launch. SpaceX publicly advertising the expendable performance of Starship unsurprisingly confirms that the company is considering all of the capabilities its new launch system will offer.

And Starship’s expendable capabilities are significant. Constructed piece by piece over dozens of launches, the International Space Station weighs about 420 tons (~925,000 lbs). Two expendable Starships could launch more usable mass to LEO – truly revolutionary if SpaceX can make Starship launches frequent and routine.

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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.

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Elon Musk

Tesla to a $100T market cap? Elon Musk’s response may shock you

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There are a lot of Tesla bulls out there who have astronomical expectations for the company, especially as its arm of reach has gone well past automotive and energy and entered artificial intelligence and robotics.

However, some of the most bullish Tesla investors believe the company could become worth $100 trillion, and CEO Elon Musk does not believe that number is completely out of the question, even if it sounds almost ridiculous.

To put that number into perspective, the top ten most valuable companies in the world — NVIDIA, Apple, Alphabet, Microsoft, Amazon, TSMC, Meta, Saudi Aramco, Broadcom, and Tesla — are worth roughly $26 trillion.

Will Tesla join the fold? Predicting a triple merger with SpaceX and xAI

Cathie Wood of ARK Invest believes the number is reasonable considering Tesla’s long-reaching industry ambitions:

“…in the world of AI, what do you have to have to win? You have to have proprietary data, and think about all the proprietary data he has, different kinds of proprietary data. Tesla, the language of the road; Neuralink, multiomics data; nobody else has that data. X, nobody else has that data either. I could see $100 trillion. I think it’s going to happen because of convergence. I think Tesla is the leading candidate [for $100 trillion] for the reason I just said.”

Musk said late last year that all of his companies seem to be “heading toward convergence,” and it’s started to come to fruition. Tesla invested in xAI, as revealed in its Q4 Earnings Shareholder Deck, and SpaceX recently acquired xAI, marking the first step in the potential for a massive umbrella of companies under Musk’s watch.

SpaceX officially acquires xAI, merging rockets with AI expertise

Now that it is happening, it seems Musk is even more enthusiastic about a massive valuation that would swell to nearly four-times the value of the top ten most valuable companies in the world currently, as he said on X, the idea of a $100 trillion valuation is “not impossible.”

Tesla is not just a car company. With its many projects, including the launch of Robotaxi, the progress of the Optimus robot, and its AI ambitions, it has the potential to continue gaining value at an accelerating rate.

Musk’s comments show his confidence in Tesla’s numerous projects, especially as some begin to mature and some head toward their initial stages.

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Celebrating SpaceX’s Falcon Heavy Tesla Roadster launch, seven years later (Op-Ed)

Seven years later, the question is no longer “What if this works?” It’s “How far does this go?”

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SpaceX's first Falcon Heavy launch also happened to be a strategic and successful test of Falcon upper stage coast capabilities. (SpaceX)

When Falcon Heavy lifted off in February 2018 with Elon Musk’s personal Tesla Roadster as its payload, SpaceX was at a much different place. So was Tesla. It was unclear whether Falcon Heavy was feasible at all, and Tesla was in the depths of Model 3 production hell.

At the time, Tesla’s market capitalization hovered around $55–60 billion, an amount critics argued was already grossly overvalued. SpaceX, on the other hand, was an aggressive private launch provider known for taking risks that traditional aerospace companies avoided.

The Roadster launch was bold by design. Falcon Heavy’s maiden mission carried no paying payload, no government satellite, just a car drifting past Earth with David Bowie playing in the background. To many, it looked like a stunt. For Elon Musk and the SpaceX team, it was a bold statement: there should be some things in the world that simply inspire people.

Inspire it did, and seven years later, SpaceX and Tesla’s results speak for themselves.

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Credit: SpaceX

Today, Tesla is the world’s most valuable automaker, with a market capitalization of roughly $1.54 trillion. The Model Y has become the best-selling car in the world by volume for three consecutive years, a scenario that would have sounded insane in 2018. Tesla has also pushed autonomy to a point where its vehicles can navigate complex real-world environments using vision alone.

And then there is Optimus. What began as a literal man in a suit has evolved into a humanoid robot program that Musk now describes as potential Von Neumann machines: systems capable of building civilizations beyond Earth. Whether that vision takes decades or less, one thing is evident: Tesla is no longer just a car company. It is positioning itself at the intersection of AI, robotics, and manufacturing.

SpaceX’s trajectory has been just as dramatic.

The Falcon 9 has become the undisputed workhorse of the global launch industry, having completed more than 600 missions to date. Of those, SpaceX has successfully landed a Falcon booster more than 560 times. The Falcon 9 flies more often than all other active launch vehicles combined, routinely lifting off multiple times per week.

Falcon Heavy successfully clears the tower after its maiden launch, February 6, 2018. (Tom Cross)

Falcon 9 has ferried astronauts to and from the International Space Station via Crew Dragon, restored U.S. human spaceflight capability, and even stepped in to safely return NASA astronauts Butch Wilmore and Suni Williams when circumstances demanded it.

Starlink, once a controversial idea, now dominates the satellite communications industry, providing broadband connectivity across the globe and reshaping how space-based networks are deployed. SpaceX itself, following its merger with xAI, is now valued at roughly $1.25 trillion and is widely expected to pursue what could become the largest IPO in history.

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And then there is Starship, Elon Musk’s fully reusable launch system designed not just to reach orbit, but to make humans multiplanetary. In 2018, the idea was still aspirational. Today, it is under active development, flight-tested in public view, and central to NASA’s future lunar plans.

In hindsight, Falcon Heavy’s maiden flight with Elon Musk’s personal Tesla Roadster was never really about a car in space. It was a signal that SpaceX and Tesla were willing to think bigger, move faster, and accept risks others wouldn’t.

The Roadster is still out there, orbiting the Sun. Seven years later, the question is no longer “What if this works?” It’s “How far does this go?”

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Energy

Tesla launches Cybertruck vehicle-to-grid program in Texas

The initiative was announced by the official Tesla Energy account on social media platform X.

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Credit: Tesla

Tesla has launched a vehicle-to-grid (V2G) program in Texas, allowing eligible Cybertruck owners to send energy back to the grid during high-demand events and receive compensation on their utility bills. 

The initiative, dubbed Powershare Grid Support, was announced by the official Tesla Energy account on social media platform X.

Texas’ Cybertruck V2G program

In its post on X, Tesla Energy confirmed that vehicle-to-grid functionality is “coming soon,” starting with select Texas markets. Under the new Powershare Grid Support program, owners of the Cybertruck equipped with Powershare home backup hardware can opt in through the Tesla app and participate in short-notice grid stress events.

During these events, the Cybertruck automatically discharges excess energy back to the grid, supporting local utilities such as CenterPoint Energy and Oncor. In return, participants receive compensation in the form of bill credits. Tesla noted that the program is currently invitation-only as part of an early adopter rollout.

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The launch builds on the Cybertruck’s existing Powershare capability, which allows the vehicle to provide up to 11.5 kW of power for home backup. Tesla added that the program is expected to expand to California next, with eligibility tied to utilities such as PG&E, SCE, and SDG&E.

Powershare Grid Support

To participate in Texas, Cybertruck owners must live in areas served by CenterPoint Energy or Oncor, have Powershare equipment installed, enroll in the Tesla Electric Drive plan, and opt in through the Tesla app. Once enrolled, vehicles would be able to contribute power during high-demand events, helping stabilize the grid.

Tesla noted that events may occur with little notice, so participants are encouraged to keep their Cybertrucks plugged in when at home and to manage their discharge limits based on personal needs. Compensation varies depending on the electricity plan, similar to how Powerwall owners in some regions have earned substantial credits by participating in Virtual Power Plant (VPP) programs.

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