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SpaceX’s first thrice-flown Cargo Dragon returns from orbit with Starship tiles intact
After a flawless reentry and splashdown on August 27th, SpaceX’s first thrice-flown Cargo Dragon spacecraft completed its latest mission, arriving in Port of Los Angeles aboard SpaceX vessel NRC Quest.
The successful completion of NASA Commercial Resupply Mission 18 (CRS-18) means that SpaceX is officially the first and only company to launch the same orbital spacecraft three times. Meanwhile, Cargo Dragon capsule C108 also happened to mark the first known orbital flight test of hardware that may be destined for use on SpaceX’s next-generation Starship launch vehicle, taking the shape of four ceramic tiles installed as part of its ablative PICA-X heat shield.
Cargo Dragon’s CRS-18 mission successfully lifted off on its way to the International Space Station (ISS) on July 25th and was berthed to the ISS roughly two days later, completed its delivery of several tons worth of cargo. During the launch webcast, one of the SpaceX hosts noted that black tiles visible on Cargo Dragon’s heat shield – distinct beside its silvery water-sealed PICA-X tiles – were prototypes of a ceramic heat shield material being analyzed for possible use on Starship.
CEO Elon Musk confirmed this after the first launch attempt was scrubbed by weather, stating that SpaceX was looking into the use of “thin [ceramic] tiles” to protect Starship’s windward (atmosphere-facing) half during orbital reentries. Prior to this development, Musk had proposed and posted videos of real-world tests of a steel Starship heat shield concept, in which extra energy could be wicked away by ‘transpiring’ liquid oxygen or methane through microscopic holes on each tile’s leading edge.
Although particular species of stainless steel do feature exceptionally high melting points and structural characteristics at ultra-high temperatures (> 1400C/2500F), some unofficial analyses of the numbers involved indicated that the density and weight of steel could rapidly hinder any benefits derived from its use as a heat shield. Musk appeared to confirm this in his July 24th comments, indicating that thin ceramic tiles on the windward side and nothing on the leeward side of Starship looked like the “lightest option”.
Indeed, ceramics were so prevalent on the Space Shuttle – the only semi-routinely reusable space plane ever developed – in large part because they can be made spectacularly light. The Shuttle’s main ceramic tiles had a density of 155 kg/m³ (9 lb/ft³), about five times denser than styrofoam or roughly the same density as freshly-fallen snow and balsa wood. Stainless steel is about 50 times denser, on average. To use Musk’s own 2017 turn-of-phrase, adding thick steel tiles to Starship’s already-steel skin was probably a bit too much like “building a box in a box”, whereas prioritizing ceramic tiles presumably cuts the shield’s mass by a factor of something like 20-100+.
Although the Shuttle did make extensive use of ceramic shielding, that shielding – specifically, reinforced carbon-carbon (RCC) tiles about as fragile as the material people are familiar with – and a mixture of organizational ineptitude infamously lead to the death 7 NASA astronauts and was generally a nightmare to deal with. SpaceX certainly won’t have to deal with the foam and solid rocket boosters that a lot of Shuttle’s ceramic problems can be traced to, but the company will likely be laser-focused on producing a form of ceramic shielding that isn’t nearly as fragile as Shuttle-derived materials.
The fact that Cargo Dragon’s ceramic Starship tile prototypes appear to be almost completely unscathed after their first orbital reentry is an excellent sign that SpaceX is making progress in the materials design and certification department, or is at least taking flight-testing extremely seriously.
SpaceX CEO Elon Musk is expected to provide an official update on Starship no earlier than late September, a presentation that will likely include details about the route the company is taking with the massive spaceship’s heat shielding.
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Tesla short sellers won big following the company’s massive fall on Wall Street after it reported subpar Earnings on Wednesday.
Tesla short sellers collected about $4.12 billion in single-day profits on Thursday, according to Bloomberg. Shares fell as much as 15 percent during Thursday’s session. It closed as one of the worst days for Tesla on Wall Street in the past three years.
Investors sold off the stock after Tesla said it would aggressively direct its spending toward AI and its Optimus robot project. The company had record revenues, which were driven by one of the strongest quarters in terms of vehicle deliveries in company history.
However, it missed EPS estimates by reporting just $0.33, a far cry from the $0.53 analysts expected.
S3 Partners reported that about 3 percent of Tesla’s outstanding stock is sold short. Managing Director at S3, Ihor Dusaniwsky, provided the short seller’s potential profit, as well as another figure: shorts have likely had paper gains of $8.92 billion this year, as Tesla shares are down 30 percent in 2026.
Tesla (TSLA) Q2 2026 earnings results: miss on EPS, beat on revenue
Tesla has burned short sellers many times in the past, but the company’s latest Earnings Call was a chance for those skeptics to taste some payback. Although the company gave some very transparent information regarding future projects, the rollout of Robotaxi, Optimus, and Semi, many investors took their profits on Thursday.
Notable short sellers like Michael Burry have been transparent about their skepticism around Tesla shares. Burry just revealed three weeks ago that he had opened up a new short on the stock, stating he shorted Tesla shares at $416.22. “Happy it jumped back to this level,” he said in a blog post.
At the time of publication, Tesla shares were down about 3 percent and the stock was trading at $309.92.
Tesla’s long-standing saga regarding its door handles and a manual release has entered its latest chapter, and as a result, a big change is coming.
On Friday, the National Highway Traffic Safety Administration (NHTSA) denied Tesla’s petition that was seeking a defect investigation into roughly 180,000 Model 3 vehicles for an issue involving the emergency mechanical door release.
🚨 The NHTSA denied a petition from Tesla that would have thrown out concerns regarding its door handles.
NHTSA said Tesla’s petition did not present evidence of a safety-related defect warranting an investigation. The agency said a rulemaking process would be a better strategy. pic.twitter.com/j6PzUBM1mT
— TESLARATI (@Teslarati) July 24, 2026
NHTSA said that Tesla’s petition did not present evidence of a safety-related defect in the door handles or their emergency releases. Instead, the agency determined that it would rather solve the issue of the lack of labeling or location of emergency mechanical door releases and the federal safety rules that govern them.
Essentially, the NHTSA wants to create and enforce rules that would require automakers to make emergency door latch releases more clearly labeled in a car. Despite a Tesla having manual door releases on all four passenger doors, many people do not know they exist or how they work.
Tesla addresses door handle complaints with simple engineering fix
In recent times, Tesla has faced some criticism involving its door handles, specifically because some occupants have reported that they are unable to exit their vehicles after losing power. The door handles on a Tesla are electronically operated, but in the event that the 12V battery dies, there is a manual release that can be used.
The NHTSA only identified a single complaint involving the mechanical door releases: a 2022 Model 3 owner said the release was concealed and unlabeled after the vehicle lost power after a front-end collision. It has also already started to create a separate rulemaking process to make emergency door-egress systems more obvious.
It should be noted that all Teslas have mechanical emergency door releases, but they are placed in various locations as the vehicles have aged and been redesigned from year to year. Refer to the safety manual for your vehicle if you have any confusion about where the emergency releases are and how they work.
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SpaceX Starship Flight 13 faces wrath of the Texas skies
SpaceX pushed Starship Flight 13 to Friday, blaming weather instead of the previous engine issues.
SpaceX called off Thursday’s launch attempt of Starship Flight 13, pushing the mission to Friday because of weather tied to Tropical Storm Bertha. The company confirmed the delay on X, noting “Now targeting Friday, July 24 for Starship’s thirteenth flight test, due to weather. A key objective for the flight test is to get clear imagery from the ground of Starship’s heatshield as it flies at a higher dynamic pressure during ascent, which won’t be possible with today’s weather conditions.”
This is the second delay for Flight 13 in two weeks. SpaceX first tried to launch the mission on July 16, but the countdown ended in an automated abort at T-0 when four of Super Heavy Booster 20’s 33 Raptor engines failed to ignite. Musk said at the time that two Raptors would need to be removed and replaced, as Teslarati reported. The company spent the following week destacking Ship 40 and Booster 20, swapping engines, and running leak checks before restacking the vehicle on Pad 2 Wednesday night, according to Spaceflight Now’s live coverage.
Unlike the engine problem, Thursday’s delay has nothing to do with the hardware. SpaceX wants clean footage of Starship’s heat shield captured from the ground as the vehicle flies through max dynamic pressure, something the storm’s cloud cover over South Texas would not allow. The company said visibility should improve for Friday’s attempt, with the same 90 minute window opening at 5:45 p.m. CT.
Flight 13 will be the second outing for the V3 versions of Starship and Super Heavy, following their debut on Flight 12 in May. The mission carries 20 production Starlink V3 satellites, the first time SpaceX has flown operational satellites rather than mass simulators on Starship. Six of those satellites are fitted with cameras to inspect the heat shield from a different angle during ascent, giving engineers a second data source beyond the ground imagery the weather is currently blocking.
Booster 20 will attempt a boostback burn and a splashdown landing burn in the Gulf of America, while Ship 40 follows a suborbital trajectory toward a landing in the Indian Ocean. The flight plan largely mirrors Flight 12, though the booster will run a more aggressive ascent burn after max Q this time, and the ship’s heat shield includes load sensing tiles meant to measure stress at the higher dynamic pressure SpaceX is targeting.
If Friday’s attempt succeeds, Flight 13 could be the last suborbital test in the program. SpaceX is already looking to push for an orbital flight on Flight 14.
Tesla short sellers win big after shares fall after earnings
Tesla door handle saga gets its latest chapter and a big change is coming
