

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 (2500ºF/1400ºC. 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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SpaceX
SpaceX pitches subscription model for Trump’s Golden Dome
SpaceX pitched a subscription model for Trump’s Golden Dome. Faster deployment, but at the cost of gov control & steady bills.

SpaceX pitched a subscription model for U.S. President Donald Trump’s Golden Dome for America.
SpaceX is a frontrunner to build key components of President Trump’s Golden Dome–formerly known as the Iron Dome. In January, President Trump signed an Executive Order to build an Iron Dome missile defense shield to protect America.
The ambitious project has drawn intense interest from defense startups, including Epirus, Ursa Major, and Armada. Companies with long-standing contracts with the U.S. government are also vying to build Trump’s Golden Dome, like Boeing and Lockheed Martin.
According to six Reuters sources, SpaceX is partnering with Palantir and Anduril on a Golden Dome proposal for the U.S. government.
The trio is pitching a plan to deploy 400 to 1,000+ satellites for missile detection and tracking, with a separate fleet of 200 attack satellites armed with missiles or lasers to neutralize threats. SpaceX will mainly focus on the sensing satellites, not weaponization.
SpaceX reportedly proposed a subscription service model for Trump’s Golden Dome, where the government pays for access rather than owning the system outright. This approach could bypass some Pentagon procurement protocols, enabling faster deployment. However, it risks locking the government into ongoing costs and reduced control over development and pricing.
A few Pentagon officials are concerned about SpaceX’s subscription model for the Golden Dome because it is a rare approach for major defense programs. U.S. Space Force General Michael Guetlein is exploring whether SpaceX should own and operate its segment or if the U.S. should retain ownership with contractors managing operations.
The Golden Dome’s innovative scope and SpaceX’s subscription model signal a new era for defense contracting. However, Trump’s Golden Dome program is in its early stages, giving the Pentagon time to consider SpaceX’s subscription model proposal. As the Pentagon weighs options, SpaceX’s technical prowess and unconventional approach position it as a key player in Trump’s vision for a robust missile shield.
News
Bell Canada takes aim at potential Starlink subsidies
Details of Bell Canada’s anti-Starlink efforts were shared by the Financial Times (FT).

Tensions are rising in Canada’s telecommunications landscape as the nation’s leading telecom provider, Bell Canada, seeks to block Elon Musk’s Starlink from accessing potential subsidies.
Details of Bell Canada’s anti-Starlink efforts were shared by the Financial Times (FT).
Bell’s Push to Block Starlink Subsidies
As noted by the FT, Bell Canada and its subsidiary Northwestel are lobbying against potential subsidies that Starlink could receive for providing internet access to the country’s remote northern regions, including the Arctic. In correspondence obtained by the Times, Bell argued that Starlink’s flat pricing proves that it does not require support to operate in Canada’s remote areas.
A decision about the matter will be announced by the Canadian Radio-television and Telecommunications Commission (CRTC). That being said, the CRTC stated in January that a subsidy would help make “internet services more reliable and affordable for residents of the Far North.”
Starlink’s Defense
SpaceX, Starlink’s parent company, has fired back at Bell, stating that blocking subsidies would harm competition and leave isolated communities such as First Nations groups with fewer, more expensive, and less reliable internet options.
While Canada’s two biggest telecommunications groups, Bell and Rogers, still dominate the country’s internet and phone service market, Starlink has been making progress in its efforts to saturate the country’s remote regions. Starlink received official approval to operate in October 2022, and since then, it has grown its customer base to 400,000 active customers as of last year.
Musk’s Empire Under Fire in Canada
The subsidy clash is part of a broader Canadian backlash against Musk’s ventures, which seems to be fueled by his role in the Trump administration. Apart from Bell’s anti-Starlink efforts, Ontario also axed a $100 million Starlink contract. Quebec has noted that it would not be renewing its Starlink subsidy scheme as well.
Tesla, on the other hand, lost government EV subsidies, with Transport Minister Chrystia Freeland leading the charge. As per Geoff White of the Public Interest Advocacy Center, “We should not be giving one cent of public money to an unaccountable imperialist like Elon Musk.”
News
Tesla China’s first Megapack exports are headed for a big battery in Australia
The Tesla Megapack batteries are bound for Queensland’s Western Downs battery project.

A few days ago, Tesla announced that the first Megapack battery units from its Shanghai “Megafactory” were being shipped to Australia.
As per recent reports, the massive grid-scale Tesla batteries are bound for Queensland’s Western Downs battery project.
The Shanghai Megafactory
The Shanghai Megafactory is Tesla’s first battery storage factory outside the United States. Built close to Gigafactory Shanghai, the Shanghai Megafactory is expected to supply Megapack batteries to both China and foreign markets.
The Megapack represents a huge portion of Tesla Energy’s deployments. With 3.9 MWh of energy, Tesla notes that each Megapack is enough to power 3,600 homes for an hour. The Shanghai Megafactory has a capacity to produce 10,000 Megapacks per year to start.
Mike Snyder, vice president of Tesla, shared his optimism about the Shanghai Megafactory. “Megafactory gives us the ability to scale production and efficiency. We can lower logistics costs as well as product costs, and grow the business to new markets,” he stated.
Australia Battery Projects
As noted in a report from Renew Economy, the first Megapack shipments from the Shanghai Megafactory will be installed in the second stage of the Western Downs battery project, which is being built by Neoen. The Western Downs battery project involves a 460 MWp solar farm coupled with a 540 MW/1,080 MWh big battery system.
Tesla has also been listed as the battery supplier for the upcoming Calala battery in Tamworth, New South Wales, which will involve 138 Megapack units. The Megapacks for the Calala battery will likely be imported from the Shanghai Megafactory as well.
Data from Rosetta Analytics suggests that Tesla is currently the dominant player in Australia’s energy storage segment, with the company holding over 30% of the market. Tesla has become a notable presence in Australia’s energy sector for years, especially following the company’s buildout of the Hornsdale “big battery,” which was initially comprised of Tesla Powerpacks, in 2017.
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