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SpaceX’s Falcon 9 faced its most challenging reentry and landing yet

Falcon 9 B1048 completed its third successful launch and landing in seven months, sending Beresheet on its way to the Moon and PSN-6 to a high Earth orbit. (SpaceX)

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SpaceX has completed its second successful launch of 2019, sending the first commercial Moon lander on the first leg of its journey to the lunar surface with a sooty Falcon 9 Block 5 rocket.

Built by Israeli aerospace company IAI for customer SpaceIL, the Moon lander – named Beresheet, Hebrew for “in the beginning” – is just one of three payloads present on this launch, gently perched with Air Force satellite S5 atop Indonesian communications satellite PSN-6. According to SpaceX, Falcon 9 B1048’s third successful launch and landing faced the Block 5 booster with “some of the most challenging reentry conditions to date”.

https://twitter.com/_TomCross_/status/1098766636780261378

After separating from Falcon 9’s upper stage and payload at an altitude of 68 km (43 mi) and a velocity of nearly 2.4 km/s (1.5 mi/s, Mach 7+), B1048 continued on in the near-vacuum of suborbital space, likely peaking at 80-100 km before heading back down into the thicker parts of Earth’s atmosphere. Despite what one SpaceX engineer described as “the most challenging reentry conditions to date”, B1048 appeared to perform perfectly over the course of its third launch and landing.

According to SpaceX CEO Elon Musk, the booster could fly again as early as April in support of Crew Dragon’s in-flight abort mission, although his implication that that test will occur in April directly contradicts a recent NASA schedule update that pegged the test no earlier than (NET) June 2019.

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Shortly before the main PSN-6 satellite was deployed from Falcon 9’s upper stage, one of SpaceX’s launch network operators verbally confirmed that SpaceIL’s Beresheet lander had established communications with the ground and successfully deployed its landing legs in orbit, one tangible step closer to the first attempted commercial Moon landing. Beresheet and PSN-6 will now take opposite paths forward, with the lunar lander raising its orbit quite literally to the Moon while PSN-6 drops its high end down and circularizes at approximately 35,800 km (22,250 mi) above Earth.

Combined with Musk’s apparent belief that B1048 – having just experienced what he described as the “highest reentry heating to date” – could be ready to launch again as few as 40-70 days from now, this successful launch and landing of a flight-proven Falcon 9 booster (the second time a SpaceX rocket as flown for the third time) suggests that the Block 5 upgrade continues to operate nominally. Designed to radically improve the ease and speed of Falcon 9 booster reuse, Block 5 debuted in May 2018 and has now launched 12 times, with half of those missions flying on flight-proven boosters. The proportion of flight-proven to new booster launches is likely to continue to grow in 2019, ultimately reaching a point where new boosters are limited to inaugural hardware debuts or specific contractual requests from conservative US government customers.

https://twitter.com/_TomCross_/status/1098734999027752961?

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Up next for SpaceX is the imminent orbital launch debut of Crew Dragon, set to occur no earlier than March 2nd. While a slip of several days or more is not out of the question, the lack of date movement less than ten days out from the target launch date suggests that this particular date is far more confident than the several that preceded it. Regardless, we’ll find out tomorrow just how confident NASA and SpaceX are in DM-1’s March 2nd launch plan.


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Eric Ralph is Teslarati's senior spaceflight reporter and has been covering the industry in some capacity for almost half a decade, largely spurred in 2016 by a trip to Mexico to watch Elon Musk reveal SpaceX's plans for Mars in person. Aside from spreading interest and excitement about spaceflight far and wide, his primary goal is to cover humanity's ongoing efforts to expand beyond Earth to the Moon, Mars, and elsewhere.

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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.

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(Credit: SpaceX)

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.

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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.

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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.

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(Credit: SES)

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.

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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.

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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?

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(Credit: Amazon)

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.

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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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