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SpaceX’s Starship prototype set for first serious test after Raptor engine installed

Starhopper conducts a propellant tank pressure regulation test on March 18th. (NASASpaceflight - bocachicagal)

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In concert with South Texas’ Cameron County, SpaceX has officially scheduled the first serious test – requiring temporary road closures – of its Starship prototype, unofficially nicknamed ‘Starhopper’ in light of its ultimate goal of performing low-altitude, low-velocity hop tests.

SpaceX technicians have already successfully completed a number of unspecified tanking tests – likely with chemically neutral liquid nitrogen – and completed acceptance and installation of Raptor serial number 02 (SN02), setting the stage for the giant testbed’s first flight-critical tests. Now set to occur between 10am and 4pm local time (8am2pm Pacific, 15:00-21:00 UTC), that test debut will likely see Starhopper topped to the brim with liquid methane and oxygen propellant for the first time, potentially transitioning into the first BFR-integrated Raptor static fire test.

Scarcely seven days after the engine’s arrival in Boca Chica, SpaceX technicians completed the first-ever installation of a flight-ready Raptor – SN02 – on a full-scale BFR prototype known as Starhopper. Aside from marking a major symbolic milestone for the company’s next-generation rocket development program, the installation of a functional rocket engine on the first partial-fidelity vehicle prototype means that SpaceX can now enter into a new and critical stage of development: integrated flight testing.

Assuming (hopefully) that SpaceX has yet to conduct actual fueling tests of the Starship prototype without establishing roadblocks and safety perimeters, something that would be an egregious threat to nearby locals, it’s likely that this first major test – much like SpaceX’s established Falcon 9 and Heavy test regime – will involve a process known as a Wet Dress Rehearsal (WDR). A WDR would see Starhopper loaded with liquid methane and oxygen propellant – potentially anywhere from the bare minimum needed to operate a single Raptor to completely filling its tanks – to verify that the prototype’s complex plumbing system and giant tanks are operating nicely together under flight conditions (i.e. cryogenic temperatures, thermal and mechanical stresses, chemical environments, etc.). Much like routine Falcon 9 static fire tests performed both at SpaceX’s McGregor, TX test site and the launch pad, data indicating that the rocket is behaving nominally during the WDR allows the operations team to transition smoothly from a WDR into a captive static fire test, in which the vehicle’s engine(s) are briefly ignited to simulate the first few seconds prior to liftoff.

It’s relatively rare but not unusual for planned Falcon 9 or Heavy static fire tests to end during the WDR phase in cases where the launch team observes data that appears to be less than nominal. SpaceX generally takes a “better safe than sorry” approach to these sorts of operations, swallowing the costs and risk of raising customers’ ire due to delays in order to ensure the highest probability of complete launch success.

For a vehicle as utterly new and alien as Starhopper is to both SpaceX and the aerospace industry as a whole, it’s safe to say that that tendency towards caution will be readily on display throughout these first several tests, at least until the company’s operations technicians and engineers are considerably more familiar with the prototype rocket’s behavior. On the other hand, given just how shoestring the budget of this beast likely is and how rapidly SpaceX managed to go from an empty dirt lot to a hop-test-ready, 30ft/9m-diameter Starship prototype, it’s equally likely that the company – particularly CEO Elon Musk – will accept the increased risk of catastrophic vehicle failures to keep the development program as agile as possible.

According to CEO Elon Musk, this large metal cylinder is actually one of the barrel sections of the first orbital Starship prototype. Workers are welding the sections together outside, rain or shine. (NASASpaceflight – bocachicagal)
Starhopper makes its own clouds during tanking tests on March 14th. (NASASpaceflight – bocachicagal)

As Musk himself frequently and famously is known to say, it’s far better to push hardware to failure during early testing than it is to hold back and risk largely unplanned failures during nominal operations, a lesson that SpaceX itself has learned the hard way several times. One step further, while they are at best undeniably inconvenient and expensive, major vehicle failures during testing can actually be an invaluable source of data that ultimately improves the system as a whole. For BFR, a launch vehicle meant to safely, routinely, and reliably transport as many as 100+ people both around the Earth and solar system, all possible opportunities to learn and improve the system prior to risking the lives of passengers will be an absolute necessity if SpaceX wants to ensure that customers remain willing to trust the company and its spacecraft with their lives.

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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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SpaceXAI signs agreement with Anthropic for massive AI supercomputer access

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Credit: SpaceX

SpaceXAI announced today that it had signed an agreement with Anthropic to give the company access to its Colossus 1 data center in Memphis, Tennessee.

It is a monumental deal as Anthropic will gain access to all of the compute at the plant, delivering more than 300 megawatts of power and over 220,000 NVIDIA GPUs within the month.

Anthropic’s Claude AI account on X announced the partnership:

We’ve agreed to a partnership with SpaceX that will substantially increase our compute capacity. This, along with our other recent compute deals, means that we’ve been able to increase our usage limits for Claude Code and the Claude API.”

The company is also:

  • Doubling Claude Code’s 5-hour rate limits for Pro, Max, and Team plans;
  • Removing the peak hours limit reduction on Claude Code for Pro and Max plans; and
  • Substantially raising its API rate limits for Opus models.

SpaceX also published its own release on the new agreement, noting that it is “the only organization with the launch cadence, mass-to-orbit economics, and constellation operations experience to make orbital compute a near-term engineering program rather than a research concept.”

CEO Elon Musk also commented on the partnership and shed light on intense meetings he had with senior members of Anthropic last week, stating, “nobody set on my evil detector.”

This has turned the argument that SpaceX is as much an AI company as a space exploration company into a very valid argument:

SpaceX is following in Tesla’s footsteps in a way nobody expected

Nevertheless, this is an incredibly valuable and important move in the grand scheme of things. AI scaling is fundamentally bottlenecked by compute, and demand for Claude has surged, bringing terrestrial power grids, land, and cooling operations hitting limits everywhere.

Anthropic has been aggressively signing multiple large-scale deals to be competitive in the space, including:

  • Up to 5GW with Amazon
  • 5GW with Google and Broadcom
  • Strategic $30b Azure deal with Microsoft/NVIDIA
  • $50b U.S. infrastructure investment with Fluidstack

Access to Colossus 1 gives Anthropic immediate relief on NVIDIA GPU capacity. For SpaceXAI, it turns its rapid buildout into revenue. It also showcases its ability to deliver at world-leading speed and scale.

Most importantly, it plants the seed that its much larger vision, orbital AI compute, is totally viable.

Starlink V3 satellites could enable SpaceX’s orbital computing plans: Musk

Within the month, Anthropic will begin using 100 percent of Colossus 1’s compute, directly expanding capacity for Claude Pro and Max subscribers and the API. This means fewer limits, faster responses, and support for heavier workloads.

In the long term, meaning 2026 and beyond, there will be a continued rollout of other multi-GW deals Anthropic has signed, and an early exploration of orbital compute with SpaceXAI.

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SpaceX Board has set a Mars bonus for Elon Musk

SpaceX has given Elon Musk the goal to put one million people on Mars.

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Rendering of a colonized Mars by way of SpaceX

SpaceX’s board approved a compensation plan for Elon Musk that ties his pay directly to colonizing Mars and building data centers in outer space. The details surfaced this week after Reuters reviewed SpaceX’s confidential registration statement filed with the Securities and Exchange Commission, making it one of the first concrete looks inside the company’s financials ahead of a public offering.

The pay package will reportedly award Musk 200 million super-voting restricted shares if the company hits a market valuation milestone, with the most ambitious targets going further. To unlock the full award, SpaceX would need to reach a $7.5 trillion valuation and help establish a permanent human settlement on Mars with at least one million residents. Additional incentives are tied to developing space-based computing infrastructure capable of delivering at least 100 terawatts of processing power.

SpaceX wins its first MARS contract but it comes with a catch

Long before SpaceX filed anything with the SEC, Elon Musk had already spent years framing Mars colonization as an insurance policy against human extinction. The philosophy traces back to at least 2001, when Musk first began researching Mars missions independently, before SpaceX even existed. By 2002 he had founded the company with Mars as the stated long-term goal.

In a 2017 presentation at the International Astronautical Congress, Musk outlined the specific vision that still underpins SpaceX’s architecture today. He described a self-sustaining city on Mars requiring roughly one million people to become viable, the same number now written into his compensation package.

SpaceX’s Starship, still in active development, was designed from the ground up to support the eventual colonization of Mars. Musk has stated publicly that getting the cost per ton to Mars below $100,000 is necessary to make mass migration economically feasible. Everything from Starship’s payload capacity to its full reusability targets flows from that single constraint. One can say that Musk’s latest compensation package has put a formal valuation on Mars for the first time.

SpaceX is targeting an IPO around June 28, Musk’s birthday, at a valuation of approximately $1.75 trillion. Between the Mars rover contract, the Golden Dome software group, Space Force satellite launches, and now a pay structure built around interplanetary colonization, SpaceX has become the single most consequential contractor in American space and defense. The IPO will put a public price tag on all of it for the first time.

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UPDATE: SpaceX’s Falcon Heavy that launched a Tesla into space is back on a mission

SpaceX Falcon Heavy returns after 18 months away to deliver a satellite that only it could carry.

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UPDATE: 10:29 a.m. et: SpaceX is standing down from today’s Falcon Heavy launch of the ViaSat-3 F3 mission due to unfavorable weather. A new target date will be shared once confirmed.

After an 18-month absence, SpaceX’s Falcon Heavy is returning to mission on Monday morning when it’s scheduled to lift off from Launch Complex 39A at Kennedy Space Center at 10:21 a.m. EDT.

The mission is called ViaSat-3 F3, and the heavy satellite payload needs to reach geostationary orbit, sitting 22,236 miles above Earth where its speed matches the planet’s rotation. Getting a satellite that heavy to that altitude demands more thrust than a single-core Falcon 9 can deliver.

This marks the Falcon Heavy’s 12th flight overall since its debut in February 2018, and its first since NASA’s Europa Clipper mission in October 2024.

Arguably, the most exciting element for spectators will be watching the booster recoveries in action when the two side boosters, B1072 and B1075, will attempt simultaneous landings at Landing Zone 2 and the newer Landing Zone 40 at Cape Canaveral Space Force Station, while the center core will be expended over the ocean.

SpaceX wins its first MARS contract but it comes with a catch

Following satellite deployment, expected roughly five hours after launch, ViaSat-3 F3 will spend several months traveling to its final orbital slot before undergoing in-orbit testing, with service entry expected by late summer 2026

As Teslarati reported, NASA awarded SpaceX a $175.7 million contract on April 16, 2026, to launch the ESA Rosalind Franklin Mars rover aboard a Falcon Heavy no earlier than late 2028, which would mark the first time SpaceX has ever sent a payload to Mars. That contract came on top of an already deep pipeline that includes the Roman Space Telescope, the Dragonfly Saturn mission, and multiple national security payloads.

SpaceX executed 165 missions in 2025 and now accounts for approximately 85% of all global orbital launches. With Starlink surpassing 10 million subscribers and an IPO targeting a $1.75 trillion valuation still ahead, Monday’s launch is one more data point in a company that has quietly become the backbone of both commercial and government space access worldwide.

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