

Space
SpaceX is already preparing for operational astronaut missions
While the world’s attention is focused on the return of orbital human spaceflight from US soil after a nearly decade long absence with the upcoming May 27th Crew Dragon Demo-2 mission, SpaceX is simultaneously preparing for the first Crew Dragon operational mission certified by NASA, dubbed Crew-1, slated to occur later this year.
On Friday, April 24th, SpaceX treated its Twitter followers to some rare imagery of static fire testing completed at the company’s development facility in McGregor, Texas. The company spotlighted a fresh-from-the-factory Falcon 9 booster and Falcon 9 second stage Merlin Vaccum (MVac) engine intended for the Crew-1 mission. Crew-1, the follow-up mission to May’s Demo-2 mission and SpaceX’s first operational human spaceflight mission for NASA, will propel a crew of three NASA astronauts and one JAXA astronaut in a Crew Dragon capsule to the International Space Station.
SpaceX also provided its followers with a view of the pristine second stage MVac engine of the Crew-1 mission before it was sent to Texas for testing. The one-hundredth production MVac engine is seen inside of SpaceX’s manufacturing facility located in Hawthorne, CA before being prepared for shipment. The second stage MVac engine is the only piece of Falcon 9 hardware that SpaceX does not actively recover and reuse, unlike the first-stage booster and protective payload fairing nosecone.
Part of the process
A static fire test is a typical occurrence before shipping the booster and second stage to Florida for payload integration and launch. The static fire process involves holding down the booster and igniting the engines to run for a full-duration firing. A similar test is also performed on with the second stage MVac engine. These test-fires are performed at the Mcgregor facility to proof the vehicle and check for any inconsistencies or off-nominal test readings that may occur before shipping to the vehicle to the launch site. Following the test-fire, the entire vehicle is inspected, cleaned, and prepared for shipment.
A test-fire in Mcgregor is not the last time the engines will be put through the paces before launch. Typically a week or so before the scheduled launch date, the Falcon 9 booster is transported to the launch pad. There, the booster is fully fueled with propellant while securely held to the launch mount. All nine Merlin-1D engines are once again ignited briefly (anywhere between 6 – 12 seconds) to test the propellant load process and collect engine-firing measurements such as temperature and pressure.
Certification before operation
Although the Crew-1 mission is tentatively on the books for later this year, SpaceX and the Crew Dragon capsule have yet to achieve NASA certification to begin operational missions to and from the International Space Station. The second orbital demonstration flight of the Crew Dragon capsule (Demo-2) will serve as the final end-to-end test of SpaceX’s crew transportation system.
However, SpaceX still faces a few obstacles before achieving a full go-ahead by NASA for the launch of Demo-2. As reported by SpaceNews.com NASA’s Aerospace Safety Advisory Panel (ASAP) met via teleconference on Thursday, April 23rd for a routine quarterly briefing. In that meeting, it was briefly discussed that there are still a few “technical items” that remain to be cleared by NASA before the launch of the Demo-2 mission.
Although not specified in the briefing – and likely to be followed up on during “part 2” of the ASAP meeting to be held in early May – those items likely refer to wrapping up the joint investigation of a recent in-flight engine failure of a Falcon 9 Merlin-1D engine and one more qualifying drop-test of the Crew Dragon Mark 3 parachutes. SpaceX, however, shows no plans letting formalities stop the preparation to support future astronaut missions.
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News
SpaceX set to launch Axiom’s mission for diabetes research on the ISS
Axiom’s Ax-4 will test CGMs & insulin stability in microgravity—potentially reshaping diabetes care for Earth & future astronauts.

Axiom Space’s Ax-4 mission is set to launch on a SpaceX Falcon 9 rocket. Ax-4 will advance diabetes research in microgravity, marking a milestone for astronaut health.
Axiom Space’s fourth crewed mission is scheduled to launch with SpaceX on May 29 from NASA’s Kennedy Space Center in Florida. The Ax-4 mission will carry a diverse crew and a record-breaking scientific payload to the International Space Station (ISS).
The Ax-4 crew is led by Axiom’s Peggy Whitson and includes Shubhanshu Shukla from India, Sławosz Uznański from the European Space Agency, and Tibor Kapu from Hungary. The mission represents firsts for India, Hungary, and Poland, with Uznański being Poland’s first astronaut in over 40 years.
Ax-4 will conduct nearly 60 science investigations from 31 countries during its two-week ISS stay. A key focus is the “Suite Ride” initiative, a collaboration with Burjeel Holdings to study diabetes management in microgravity.
“The effort marks a significant milestone in the long-term goal of supporting future astronauts with insulin-dependent diabetes (IDDM), a condition historically deemed disqualifying for spaceflight,” Axiom noted. The mission will test Continuous Glucose Monitors (CGMs) and insulin stability to assess their performance in space.
Axiom explained that testing the behavior of CGMs and insulin delivery technologies in microgravity and observing circadian rhythm disruption could help diabetes experts understand how CGMs and insulin pens can improve diabetes monitoring and care in remote or underserved areas on Earth. The research could benefit diabetes management in isolated regions like oil rigs or rural areas.
The mission’s findings on insulin exposure and CGM performance could pave the way for astronauts with diabetes to safely participate in spaceflight. As Axiom and SpaceX push boundaries, Ax-4’s diabetes research underscores the potential for space-based innovations to transform healthcare on Earth and beyond.
Elon Musk
EU considers SES to augment Starlink services
The EU considers funding SES to support Starlink. With MEO satellites already serving NATO, SES could be key in Europe’s space autonomy push.

European satellite company SES is negotiating with the European Union (EU) and other governments to complement SpaceX’s Starlink, as Europe seeks home-grown space-based communication solutions. The talks aim to bolster regional resilience amid growing concerns over reliance on foreign providers.
In March, the European Commission contacted SES and France’s Eutelsat to assess their potential role if American-based Starlink access for Ukraine was disrupted. The European Commission proposed funding EU-based satellite operators to support Kyiv. Ukraine is considering alternatives to Starlink over concerns about Elon Musk’s reliability.
Arthur De Liedekerke of Rasmussen Global warned, “Elon Musk is, in fact, the guardian of Ukraine’s connectivity on the battlefield. And that’s a strategic vulnerability.” However, SpaceX’s Starlink constellation is leagues ahead of any competition in the EU.
“Now the discussions are much more strategic in nature. They’re much more mid-term, long-term. And what we’re seeing is all of the European governments are serious about increasing their defense spending. There are alternatives, not to completely replace Starlink, that’s not possible, but to augment and complement Starlink,” SES CEO Adel Al-Saleh told Reuters.
SES operates about 70 satellites, including over 20 medium Earth orbit (MEO) units at 8,000 km. The company provides high-speed internet for government, military, and underserved areas. It plans to expand its MEO fleet to 100, enhancing secure communications for NATO and the Pentagon.
“The most significant demand (for us) is European nations investing in space, much more than what they did before,” Al-Saleh said.
Competition from Starlink, Amazon’s Kuiper, and China’s SpaceSail, with their extensive low-Earth orbit constellations, underscores Europe’s push for independence.
“It is not right to say they just want to avoid Starlink or the Chinese. They want to avoid being dependent on one or two providers. They want to have flexibility,” Al-Saleh noted.
SES’s discussions reflect Europe’s strategic shift toward diversified satellite networks, balancing reliance on Starlink with regional capabilities. As governments ramp up defense spending, SES aims to play a pivotal role in complementing global providers, ensuring robust connectivity for military and civilian needs across the continent.
News
Amazon launches Kuiper satellites; Can it rival Starlink?
With 27 satellites in orbit, Amazon kicks off its $10B plan to deliver global broadband. Can Bezos’ Kuiper take on Musk’s Starlink?

Amazon’s Project Kuiper launched its first 27 satellites on Monday, marking the start of a $10 billion effort that could compete with SpaceX’s Starlink with a global broadband internet network.
Amazon’s Kuiper satellites launched aboard a United Launch Alliance Atlas V rocket from Cape Canaveral, Florida. Project Kuiper’s recent launch is the initial step toward deploying Amazon’s 3,236 satellites for low-Earth orbit connectivity. Amazon’s satellite launch was initially set for April 9 but was delayed due to bad weather.
Now that the Kuiper satellites have been launched, Amazon is expected to publicly confirm contact with the satellites from its mission operations center in Redmond, Washington. The company aims to start offering Kuiper services to customers later this year. Project Kuiper was unveiled in 2019 and targets consumers, businesses, and governments who need reliable internet service, similar to Starlink.
Amazon has a deadline from the U.S. Federal Communications Commission to deploy 1,618 satellites by mid-2026. Analysts suggest the company may require an extension to its Kuiper satellite deployment deadline due to the project’s year-long delay from its planned 2024 start.
United Launch Alliance could conduct up to five more Kuiper missions this year, according to ULA CEO Tory Bruno. Amazon noted in a 2020 FCC filing that Kuiper services could begin with 578 satellites, initially covering northern and southern regions.
Kuiper’s launch pits Amazon against SpaceX’s Starlink and telecom giants like AT&T and T-Mobile, with a focus on underserved rural areas.
“There’s an insatiable demand for the internet,” Amazon Executive Chairman Jeff Bezos told Reuters in January. “There’s room for lots of winners there. I predict Starlink will continue to be successful, and I predict Kuiper will be successful as well.”
Global interest in satellite alternatives is rising. Ukraine is exploring Starlink alternatives with the European Union (EU), driven by concerns over Elon Musk. Germany’s military, Bundeswehr, also plans its own constellation to ensure independent communications. However, like Amazon’s Kuiper Project, EU options lag behind Starlink.
Amazon’s consumer expertise and cloud computing infrastructure give Kuiper a competitive edge despite Starlink’s market lead. As Kuiper ramps up launches, its success could reshape broadband access while challenging SpaceX’s dominance in the satellite internet race.
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