SpaceX
SpaceX’s first orbital Starship begins assembly as steel heat shield passes tests
SpaceX CEO Elon Musk says that the company’s South Texas workforce has already begun to fabricate the first orbital-class Starship prototype, while Hawthorne engineers and technicians are in the midst of performing small-scale testing of the vehicle’s unprecedented stainless steel heat shield.
To be assembled out of hexagonal tiles of (presumably) stainless steel, Starship’s metallic heat shield will be one of the most crucial aspects of the orbital spacecraft, particularly with respect to ensuring that it’s extraordinarily easy to reuse. To survive extreme interplanetary-velocity reentry conditions at Mars, Earth, and beyond and remain in a functional, flight-ready condition after landing, SpaceX will need to implement the world’s first orbital-class, large-scale metallic heat shield with an immature technology known as transpirational cooling.
By quite literally drilling tiny holes (pores) into heat shield plates at the hottest parts of Starship’s hull, transpirational cooling effectively allows a large portion of the heat of reentry to be wicked away by the flash evaporation of a liquid, typically water. For SpaceX’s Starship, it’s likely that the coolant of choice would be either liquid water or liquid methane, the former of which offers better cooling per unit of mass at the cost of added plumbing complexity and spaceship mass, while the latter would make use of the same propellant fueling the ship at the cost of worse cooling per unit of mass. Either way, SpaceX will be heading into unproven territory, demanding extensive ground and flight testing to first ensure that the concept is truly viable and then to verify that it can be made as reliable and reusable as it simply has to be.
Tests like those shown on March 17th by Musk indicate that SpaceX is indeed deep into the process of extensive and often destructive testing, something the company has proven to be exceptionally good at. It’s unclear if the above test of Starship’s hexagonal heat shield tiles – likely made out of a variant of 300-series stainless steel – involved tiles with active or passive cooling, but Musk suggested that the hot-spots created with spin-forming torches reached temperatures as high as 1650 Kelvin (2500ÂşF/1400ÂşC. Unlike the ablative heat shields SpaceX is familiar with building and operating through its Crew and Cargo Dragon spacecraft, a stainless steel heat shield would be expected to almost entirely resist erosion (i.e. ablation) during extremely high-velocity reentries of at least 12-14 km/s (~31,000 mph, Mach 40+).
Update on the fairing and the unknown “2nd fairing” pic.twitter.com/5PMBYyBDAi— Austin Barnard? (@austinbarnard45) March 16, 2019
Meanwhile, Musk also confirmed that SpaceX has decided to skip constructing a replacement nosecone/fairing for Starhopper, a functional Starship prototype that will be used to conduct extremely short hop tests like Falcon 9’s development-era Grasshopper and F9R test articles. Over the last several weeks, SpaceX technicians have been rapidly assembling what was initially assumed to be the replacement fairing Musk had previously suggested would be built. Instead, the duo of stainless steel barrel sections – relying on steel much thinner than the heavy-duty stuff used to build Starhopper – are apparently the beginnings of the first orbital-class Starship prototype, said by Musk to be aiming for flight-readiness as early as June 2019 around two months ago.
While still an extraordinarily ambitious target for a vehicle that has yet to conduct any integrated hops or flight-tests in any form, the fact that SpaceX is began the process of building the first orbital Starship in late February could actually give the company’s engineers and technicians a fighting chance to complete Starhopper testing and Starship assembly over the next 90-100 days.
If stacked atop each other, the two new steel sections in work would likely stretch a solid 20-30 meters (65-100 ft) tall. Meanwhile, the first orbital-grade tank domes and/or conical nose section is also in the process of being welded together out of smaller segments, already fast approaching something ready to be installed inside the steel barrel sections.
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Elon Musk
Musk bankers looking to trim xAI debt after SpaceX merger: report
xAI has built up $18 billion in debt over the past few years, with some of this being attributed to the purchase of social media platform Twitter (now X) and the creation of the AI development company. A new financing deal would help trim some of the financial burden that is currently present ahead of the plan to take SpaceX public sometime this year.
Elon Musk’s bankers are looking to trim the debt that xAI has taken on over the past few years, following the company’s merger with SpaceX, a new report from Bloomberg says.
xAI has built up $18 billion in debt over the past few years, with some of this being attributed to the purchase of social media platform Twitter (now X) and the creation of the AI development company. Bankers are trying to create some kind of financing plan that would trim “some of the heavy interest costs” that come with the debt.
The financing deal would help trim some of the financial burden that is currently present ahead of the plan to take SpaceX public sometime this year. Musk has essentially confirmed that SpaceX would be heading toward an IPO last month.
The report indicates that Morgan Stanley is expected to take the leading role in any financing plan, citing people familiar with the matter. Morgan Stanley, along with Goldman Sachs, Bank of America, and JPMorgan Chase & Co., are all expected to be in the lineup of banks leading SpaceX’s potential IPO.
Since Musk acquired X, he has also had what Bloomberg says is a “mixed track record with debt markets.” Since purchasing X a few years ago with a $12.5 billion financing package, X pays “tens of millions in interest payments every month.”
That debt is held by Bank of America, Barclays, Mitsubishi, UFJ Financial, BNP Paribas SA, Mizuho, and Société Générale SA.
X merged with xAI last March, which brought the valuation to $45 billion, including the debt.
SpaceX announced the merger with xAI earlier this month, a major move in Musk’s plan to alleviate Earth of necessary data centers and replace them with orbital options that will be lower cost:
“In the long term, space-based AI is obviously the only way to scale. To harness even a millionth of our Sun’s energy would require over a million times more energy than our civilization currently uses! The only logical solution, therefore, is to transport these resource-intensive efforts to a location with vast power and space. I mean, space is called “space” for a reason.”
The merger has many advantages, but one of the most crucial is that it positions the now-merged companies to fund broader goals, fueled by revenue from the Starlink expansion, potential IPO, and AI-driven applications that could accelerate the development of lunar bases.
Elon Musk
SpaceX launches Crew-12 on Falcon 9, lands first booster at new LZ-40 pad
Beyond the crew launch, the mission also delivered a first for SpaceX’s Florida recovery operations.
SpaceX opened February 13 with a dual milestone at Cape Canaveral, featuring a successful Crew-12 astronaut launch to the International Space Station (ISS) and the first Falcon 9 booster landing at the company’s newly designated Landing Zone 40 (LZ-40).Â
A SpaceX Falcon 9 lifted off at 5:15 a.m. Eastern from Space Launch Complex 40 (SLC-40) at Cape Canaveral Space Force Station, placing the Crew Dragon Freedom into orbit on the Crew-12 mission.
The spacecraft is carrying NASA astronauts Jessica Meir and Jack Hathaway, ESA astronaut Sophie Adenot, and Roscosmos cosmonaut Andrey Fedyaev, as noted in a report from Space News.
The flight marked NASA’s continued shift of Dragon crew operations to SLC-40. Historically, astronaut missions launched from Launch Complex 39A at Kennedy Space Center. NASA is moving Falcon 9 crew and cargo launches at SLC-40 to reserve 39A for Falcon Heavy missions and future Starship flights.
Crew-12 is scheduled to dock with the ISS on Feb. 14 and will remain in orbit for approximately eight months.
Beyond the crew launch, the mission also delivered a first for SpaceX’s Florida recovery operations. The Falcon 9 first stage returned to Earth and touched down at Landing Zone 40, a new pad built adjacent to SLC-40.
The site replaces Landing Zone 1, located several kilometers away, which has been reassigned by the U.S. Space Force to other launch providers. By bringing the landing area next to the launch complex, SpaceX is expected to reduce transport time and simplify processing between flights.
Bill Gerstenmaier, SpaceX’s vice president of build and flight reliability, stated that landing close to the pad keeps “launch and landing in the same general area,” improving efficiency. The company operates a similar side-by-side launch and landing configuration at Vandenberg Space Force Base in California.
Elon Musk
Starlink terminals smuggled into Iran amid protest crackdown: report
Roughly 6,000 units were delivered following January’s unrest.
The United States quietly moved thousands of Starlink terminals into Iran after authorities imposed internet shutdowns as part of its crackdown on protests, as per information shared by U.S. officials to The Wall Street Journal.
Roughly 6,000 units were delivered following January’s unrest, marking the first known instance of Washington directly supplying the satellite systems inside the country.
Iran’s government significantly restricted online access as demonstrations spread across the country earlier this year. In response, the U.S. purchased nearly 7,000 Starlink terminals in recent months, with most acquisitions occurring in January. Officials stated that funding was reallocated from other internet access initiatives to support the satellite deployment.
President Donald Trump was aware of the effort, though it remains unclear whether he personally authorized it. The White House has not issued a comment about the matter publicly.
Possession of a Starlink terminal is illegal under Iranian law and can result in significant prison time. Despite this, the WSJ estimated that tens of thousands of residents still rely on the satellite service to bypass state controls. Authorities have reportedly conducted inspections of private homes and rooftops to locate unauthorized equipment.
Earlier this year, Trump and Elon Musk discussed maintaining Starlink access for Iranians during the unrest. Tehran has repeatedly accused Washington of encouraging dissent, though U.S. officials have mostly denied the allegations.
The decision to prioritize Starlink sparked internal debate within U.S. agencies. Some officials argued that shifting resources away from Virtual Private Networks (VPNs) could weaken broader internet access efforts. VPNs had previously played a major role in keeping Iranians connected during earlier protest waves, though VPNs are not effective when the actual internet gets cut.
According to State Department figures, about 30 million Iranians used U.S.-funded VPN services during demonstrations in 2022. During a near-total blackout in June 2025, roughly one-fifth of users were still able to access limited connectivity through VPN tools.
Critics have argued that satellite access without VPN protection may expose users to geolocation risks. After funds were redirected to acquire Starlink equipment, support reportedly lapsed for two of five VPN providers operating in Iran.
A State Department official has stated that the U.S. continues to back multiple technologies, including VPNs alongside Starlink, to sustain people’s internet access amidst the government’s shutdowns.
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