

SpaceX
SpaceX’s Starship engine breaks Russian rocketry record held for two decades
SpaceX CEO Elon Musk says the company’s Raptor engine, meant to power Starship and Super Heavy, has surpassed a rocketry record held by Russian scientists and engineers for more than two decades.
Known as combustion chamber pressure, Raptor has reportedly surpassed a modern Russian engine known as the RD-180, reaching forces equivalent to one Tesla Model 3 balanced on every square inch of Raptor’s combustion chamber, the hardware directly adjacent to a rocket engine’s bell-shaped nozzle.
Raptor reached 268.9 bar today, exceeding prior record held by the awesome Russian RD-180. Great work by @SpaceX engine/test team! pic.twitter.com/yPrvO0JhyY
— Elon Musk (@elonmusk) February 11, 2019
First and foremost, it’s far too early to actually crown Raptor as the new official record-holder for combustion chamber pressure. RD-180 has been reliably flying on ULA’s Atlas V rocket with chamber pressures as high ~257.5 bar (3735 psi) since the year 2000, while Raptor has been performing subscale integrated testing for roughly two years and full-scale integrated testing for less than seven days. As such, the fact that full-scale Raptor has achieved ~269 bar (3900 psi) is an almost unbelievably impressive achievement but probably shouldn’t be used to jump to any conclusions just yet.
Thanks to the 10-20% performance boost supercool liquid methane and oxygen will bring Raptor, currently stuck using propellant just barely cold enough to remain liquid, the engine performing tests could already be made to reach its design specification of 300+ bar (4350+ psi), although Musk cautioned that he wasn’t sure Raptor would be able to survive that power in its current iteration. Nevertheless, 250 bar is apparently more than enough to operate Starship and its Super Heavy booster during most regimes of flight, although maximum thrust (and thus max chamber pressures) is probably desirable for the first minute or so after launch when gravity losses are most significant.
- CEO Elon Musk revealed the first official photos of SpaceX’s finalized Raptor engine, set to support Starship hop tests and early BFR launches. (SpaceX)
- The first finalized Raptor engine (SN01) completed a successful static fire debut on the evening of February 3rd. (SpaceX)
- SpaceX has now tested Raptor successfully at more than twice the thrust of Merlin 1D, the engine that powers Falcon 9. (SpaceX)
- Eventually, three Raptors will be installed on the first full-scale Starship prototype, currently being assembled in South Texas. (NASASpaceflight – bocachicagal.
Ultimately, the sheer speed of SpaceX’s full-scale Raptor test program is easily the most impressive and encouraging aspect of the brand new engine design. While SpaceX does tend towards testing to destruction over putting on kid-gloves around flight or development hardware, it’s safe to say that even SpaceX would avoid frivolously destroying the first full-scale Raptor after just a few dozen seconds of integrated hot-fire testing, indicating that no major red flags have cropped up since the company’s propulsion team began testing on February 3rd. In fact, Musk estimated that six separate static-fires have been performed with Raptor in the seven days since its first ignition.
I think 6 where we lit main chamber & several with only preburners
— Elon Musk (@elonmusk) February 11, 2019
As of 2017, Raptor’s McGregor, Texas test cell was fundamentally capped at test durations under 100 seconds, making comparisons difficult. Still, the best possible recent point of comparison to Raptor’s test program can be found in NASA’s series of tests of Space Shuttle engines in preparation for the Space Launch System (SLS) rocket, an expendable launch vehicle being built by Boeing, Aerojet-Rocketdyne, NGIS (formerly Orbital-ATK), and others with NASA funds. Known as RS-25 under the SLS Program, the Space Shuttle engines being test-fired by NASA have already performed multiple full-duration missions to orbit and back on the four Space Shuttle orbiters built. After half a decade in storage, they are being re-tested (effectively acceptance testing) to ensure that they are ready to be expended on SLS launches.
In the first round of 2015 tests, NASA’s Stennis Space Center test stage supported six RS-25 static-fires total, ranging from two weeks to almost five months between tests. RS-25 testing has remained on a similar schedule in 2016-2018, averaging 4-6 tests annually with no fewer than two weeks between static-fires. Given that the vast majority of those ex-Space Shuttle Main Engine tests tend to last hundreds of seconds, it’s not a perfect comparison, but it offers at least a general idea of just how incredible it is to see a groundbreaking engine like Raptor test-fired almost daily just days after it was installed on a test stand for the first time.
— Elon Musk (@elonmusk) February 4, 2019
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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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Starlink Cellular’s T-Mobile service to grow with third-party app data
From Oct 2025, T-Satellite will enable third-party apps in dead zones! WhatsApp, X, AccuWeather + more coming soon.

Starlink Cellular’s T-Mobile service will expand with third-party app data support starting in October, enhancing connectivity in cellular dead zones.
T-Mobile’s T-Satellite, supported by Starlink, launches officially on July 23. Following its launch, T-Mobile’s Starlink Cellular service will enable data access for third-party apps like WhatsApp, X, Google, Apple, AccuWeather, and AllTrails on October 1, 2025.
T-Mobile’s Starlink Cellular is currently in free beta. T-Satellite will add MMS support for Android phones on July 23, with iPhone support to follow. MMS support allows users to send images and audio clips alongside texts. By October, T-Mobile will extend emergency texting to all mobile users with compatible phones, beyond just T-Mobile customers, building on its existing 911 texting capability. The carrier also provides developer tools to help app makers integrate their software with T-Satellite’s data service, with plans to grow the supported app list.
T-Mobile announced these updates during an event celebrating an Ookla award naming it the best U.S. phone network, a remarkable turnaround from its last-place ranking a decade ago.
“We not only dream about going from worst to best, we actually do it. We’re a good two years ahead of Verizon and AT&T, and I believe that lead is going to grow,” said T-Mobile’s Chief Operating Officer Srini Gopalan.
T-Mobile unveiled two promotions for its Starlink Cellular services to attract new subscribers. A free DoorDash DashPass membership, valued at $10/month, will be included with popular plans like Experience Beyond and Experience More, offering reduced delivery and service fees. Meanwhile, the Easy Upgrade promotion targets Verizon customers by paying off their phone balances and providing flagship devices like the iPhone 16, Galaxy S25, or Pixel 9.
T-Mobile’s collaboration with SpaceX’s Starlink Cellular leverages orbiting satellites to deliver connectivity where traditional networks fail, particularly in remote areas. Supporting third-party apps underscores T-Mobile’s commitment to enhancing user experiences through innovative partnerships. As T-Satellite’s capabilities grow, including broader app integration and emergency access, T-Mobile is poised to strengthen its lead in the U.S. wireless market.
By combining Starlink’s satellite technology with strategic promotions, T-Mobile is redefining mobile connectivity. The upcoming third-party app data support and official T-Satellite launch mark a significant step toward seamless communication, positioning T-Mobile as a trailblazer in next-generation wireless services.
News
Starlink expansion into Vietnam targets the healthcare sector
Starlink aims to deliver reliable internet to Vietnam’s remote clinics, enabling telehealth and data sharing.

SpaceX’s Starlink expansion into Vietnam targets its healthcare sector. Through Starlink, SpaceX seeks to drive digital transformation in Vietnam.
On June 18, a SpaceX delegation met with Vietnam’s Ministry of Health (MoH) in Hanoi. SpaceX’s delegation was led by Andrew Matlock, Director of Enterprise Sales, and the discussions focused on enhancing connectivity for hospitals and clinics in Vietnam’s remote areas.
Deputy Minister of Health (MoH) Tran Van Thuan emphasized collaboration between SpaceX and Vietnam. Tran stated: “SpaceX should cooperate with the MoH to ensure all hospitals and clinics in remote areas are connected to the StarLink satellite system and share information, plans, and the issues discussed by members of the MoH. The ministry is also ready to provide information and send staff to work with the corporation.”
The MoH assigned its Department of Science, Technology, and Training to work with SpaceX. Starlink Vietnam will also receive support from Vietnam’s Department of International Cooperation. Starlink Vietnam’s agenda includes improving internet connectivity for remote healthcare facilities, developing digital infrastructure for health examinations and remote consultations, and enhancing operational systems.
Vietnam’s health sector is prioritizing IT and digital transformation, focusing on electronic health records, data centers, and remote medical services. However, challenges persist in deploying IT solutions in remote regions, prompting Vietnam to seek partnerships like SpaceX’s.
SpaceX’s Starlink has a proven track record in healthcare. In Rwanda, its services supported 40 health centers, earning praise for improving operations. Similarly, Starlink enabled remote consultations at the UAE’s Emirati field hospital in Gaza, streamlining communication for complex medical cases. These successes highlight Starlink’s potential to transform Vietnam’s healthcare landscape.
On May 20, SpaceX met with Vietnam’s Ministry of Industry and Trade, announcing a $1.5 billion investment to provide broadband internet, particularly in remote, border, and island areas. The first phase includes building 10-15 ground stations across the country. This infrastructure will support Starlink’s healthcare initiatives by ensuring reliable connectivity.
Starlink’s expansion in Vietnam aligns with the country’s push for digital transformation, as outlined by the MoH. By leveraging its satellite internet expertise, SpaceX aims to bridge connectivity gaps, enabling advanced healthcare services in underserved regions. This collaboration could redefine Vietnam’s healthcare infrastructure, positioning Starlink as a key player in the nation’s digital future.
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