SpaceX
SpaceX fully installs Super Heavy booster’s ‘aerocovers’
For the first time, SpaceX has more or less installed a full set of ‘aerocovers’ on a Super Heavy booster prototype.
Designed to protect the booster from both itself and Earth’s atmosphere during ground testing, liftoff, ascent, and reentry, Super Heavy’s the structures amount to thin, steel shells mounted on metal box frames. The most obvious aerocovers slot over the top of six racks of equipment installed on the outside of Super Heavy’s aft end, giving the booster a sort of utility belt of hydraulic systems, pressure vessels, avionics, and heat exchangers. Unsurprisingly, those racks are festooned with electronics, composites, and thousands of feet of wiring and thin plumbing – none of which are particularly suited to sit a few dozen feet from the fury of 29-33 Raptor engines or near the leading edge of a hypersonic reentry vehicle.
Aside from the steel they’re mounted on, it’s likely that every system located on Super Heavy’s ‘utility built’ would begin malfunctioning or be destroyed outright if directly exposed to just a few seconds of the hypersonic buffeting and heating Starship boosters will experience during reentry. Unlike Falcon boosters, which almost always use reentry burns to slow down and create a sort of heat shield with their own exhaust, SpaceX is theoretically designing Super Heavy to survive the full force of reentry without an extra burn to cushion the blow.
To survive reentry and still land in good enough condition to enable anything close to same-day reusability, which is SpaceX’s goal, every ounce of at-risk equipment installed on Super Heavy’s exterior will likely need to be carefully shielded. In theory, that’s the purpose of the aerocovers SpaceX has only just begun to fully install – let alone test – on Super Heavy B4.
Before Booster 4’s most recent installation on the orbital launch mount, SpaceX did install covers over a pair of hydraulic and heat exchanger racks but left all four composite overwrapped pressure vessel (COPV) racks and an umbilical port uncovered. After B4 was removed from the launch mount for the third time on December 30th, both covers were uninstalled. On January 14th, 2022, though, SpaceX rapidly installed all six covers for the first time and began sealing each cover’s exposed corners. On January 17th, SpaceX even installed aerodynamic surfaces around Booster 4’s protruding umbilical port, smoothing out any hypothetical airflow around the device.
Prior to main aerocover installation, SpaceX also added at least half a dozen small boxes seemingly designed to protect a number of thin metal probes that pierce through Super Heavy’s tanks and skin and are connected to avionics boxes. Additionally, while less visible, teams also worked to finish Super Heavy B4’s Raptor heat shielding with a large number of similar sheet steel covers and panels. Without official photos from SpaceX or another lift onto the launch mount, it’s impossible to know if Booster 4’s Raptor heat shield is fully closed out, but the shielding that runs around its circumference appears to be finished.
As it stands, Super Heavy B4 is likely just a few parts shy of true completion and is about as ready as it’ll ever be for static fire testing. More likely than not, those aerocovers and Raptor heat shields are essential for Super Heavy B4 to be able to perform more than one test at a time without immediately requiring major repairs. Unlike Starship, which has mostly tested three engines at once and only performed a few six-engine static fires, Super Heavy B4 may eventually test all 29 Raptor engines simultaneously.
When almost 30 engines are involved, even nominal preburner testing will likely produce a massive fireball that could engulf Super Heavy’s aft (if not the entire booster) with flames. For static fire testing, Raptors typically produce a smaller and briefer (but still substantial) fireball during shutdown, creating another potential source of damage to any sensitive hardware located anywhere on or in Booster 4’s thrust section. As such, Super Heavy aerocovers may be just as important for surviving static fires as they’ll be for surviving launches and landings.
It’s unclear if or when Super Heavy B4 will return to the orbital launch mount for wet dress rehearsal and static fire testing. SpaceX has ambiguous test windows scheduled from 10am to 10pm on January 18th, 19th, and 20th.
Elon Musk
Elon Musk reveals SpaceX’s target for Starship’s 10th launch
Elon Musk has revealed SpaceX’s target timeline for the next Starship launch, which will be the tenth in program history.
Elon Musk has revealed SpaceX’s target timeline for the next Starship launch, which will be the tenth in program history.
Musk says SpaceX is aiming for a timeline of roughly three weeks from now, which would come about ten weeks after the previous launch.
Coincidentally, it would bring the two launches 69 days apart, and if you know anything about Elon Musk, that would be an ideal timeline between two launches.
🚨 Just wanted you to know, Starship 10’s projected test flight date, according to Grok, is August 4.
Starship’s ninth test flight took place on May 27.
August 4 is 69 days after May 27.
Do with that what you will. 🚀 https://t.co/IISpT08rIy
— TESLARATI (@Teslarati) July 16, 2025
SpaceX is coming off a test flight in which it lost both the Super Heavy Booster and the Upper Stage in the previous launch. The Super Heavy Booster was lost six minutes and sixteen seconds into the flight, while SpaceX lost communication with the Ship at 46 minutes and 48 seconds.
Musk is aiming for the tenth test flight to take place in early August, he revealed on X:
Launching again in ~3 weeks
— Elon Musk (@elonmusk) July 14, 2025
This will be SpaceX’s fourth test flight of the Starship program in 2025, with each of the previous three flights bringing varying results.
IFT-7 in January brought SpaceX its second successful catch of the Super Heavy Booster in the chopstick arms of the launch tower. The ship was lost after exploding during its ascent over the Turks and Caicos Islands.
IFT-8 was on March 6, and SpaceX caught the booster once again, but the Upper Stage was once again lost.
The most recent flight, IFT-9, took place on May 27 and featured the first reused Super Heavy Booster. However, both the Booster and Upper Stage were lost.
The Federal Aviation Administration (FAA) hit SpaceX with a mishap investigation for Flight 9 on May 30.
News
SpaceX’s Crew-11 mission targets July 31 launch amid tight ISS schedule
The flight will lift off from Launch Complex 39A at Kennedy Space Center in Florida.
NASA and SpaceX are targeting July 31 for the launch of Crew-11, the next crewed mission to the International Space Station (ISS). The flight will lift off from Launch Complex 39A at Kennedy Space Center in Florida, using the Crew Dragon Endeavour and a Falcon 9 booster.
Crew Dragon Endeavour returns
Crew-11 will be the sixth flight for Endeavour, making it SpaceX’s most experienced crew vehicle to date. According to SpaceX’s director of Dragon mission management, Sarah Walker, Endeavour has already carried 18 astronauts representing eight countries since its first mission with NASA’s Bob Behnken and Doug Hurley in 2020, as noted in an MSN report.
“This Dragon spacecraft has successfully flown 18 crew members representing eight countries to space already, starting with (NASA astronauts) Bob (Behnken) and Doug (Hurley) in 2020, when it returned human spaceflight capabilities to the United States for the first time since the shuttle retired in July of 2011,” Walker said.
For this mission, Endeavour will debut SpaceX’s upgraded drogue 3.1 parachutes, designed to further enhance reentry safety. The parachutes are part of SpaceX’s ongoing improvements to its human-rated spacecraft, and Crew-11 will serve as their first operational test.
The Falcon 9 booster supporting this launch is core B1094, which has launched in two previous Starlink missions, as well as the private Ax-4 mission on June 25, as noted in a Space.com report.
The four-members of Crew-11 are NASA astronauts Zena Cardman and Mike Fincke, as well as Japan’s Kimiya Yui and Russia’s Oleg Platonov.
Tight launch timing
Crew-11 is slated to arrive at the ISS just as NASA coordinates a sequence of missions, including the departure of Crew-10 and the arrival of SpaceX’s CRS-33 mission. NASA’s Bill Spetch emphasized the need for careful planning amid limited launch resources, noting the importance of maintaining station altitude and resupply cadence.
“Providing multiple methods for us to maintain the station altitude is critically important as we continue to operate and get the most use out of our limited launch resources that we do have. We’re really looking forward to demonstrating that capability with (CRS-33) showing up after we get through the Crew-11 and Crew-10 handover,” Spetch stated.
News
SpaceX launches Ax-4 mission to the ISS with international crew
The SpaceX Falcon 9 launched Axiom’s Ax-4 mission to ISS. Ax-4 crew will conduct 60+ science experiments during a 14-day stay on the ISS.
SpaceX launched the Falcon 9 rocket kickstarting Axiom Space’s Ax-4 mission to the International Space Station (ISS). Axiom’s Ax-4 mission is led by a historic international crew and lifted off from Kennedy Space Center’s Launch Complex 39A at 2:31 a.m. ET on June 25, 2025.
The Ax-4 crew is set to dock with the ISS around 7 a.m. ET on Thursday, June 26, 2025. Axiom Space, a Houston-based commercial space company, coordinated the mission with SpaceX for transportation and NASA for ISS access, with support from the European Space Agency and the astronauts’ governments.
The Ax-4 mission marks a milestone in global space collaboration. The Ax-4 crew, commanded by U.S. astronaut Peggy Whitson, includes Shubhanshu Shukla from India as the pilot, alongside mission specialists Sławosz Uznański-Wiśniewski from Poland and Tibor Kapu from Hungary.
“The trip marks the return to human spaceflight for those countries — their first government-sponsored flights in more than 40 years,” Axiom noted.
Shukla’s participation aligns with India’s Gaganyaan program planned for 2027. He is the first Indian astronaut to visit the ISS since Rakesh Sharma in 1984.
Axiom’s Ax-4 mission marks SpaceX’s 18th human spaceflight. The mission employs a Crew Dragon capsule atop a Falcon 9 rocket, designed with a launch escape system and “two-fault tolerant” for enhanced safety. The Axiom mission faced a few delays due to weather, a Falcon 9 leak, and an ISS Zvezda module leak investigation by NASA and Roscosmos before the recent successful launch.
As the crew prepares to execute its scientific objectives, SpaceX’s Ax-4 mission paves the way for a new era of inclusive space research, inspiring future generations and solidifying collaborative ties in the cosmos. During the Ax-4 crew’s 14-day stay in the ISS, the astronauts will conduct nearly 60 experiments.
“We’ll be conducting research that spans biology, material, and physical sciences as well as technology demonstrations,” said Whitson. “We’ll also be engaging with students around the world, sharing our experience and inspiring the next generation of explorers.”
SpaceX’s Ax-4 mission highlights Axiom’s role in advancing commercial spaceflight and fostering international partnerships. The mission strengthens global space exploration efforts by enabling historic spaceflight returns for India, Poland, and Hungary.
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