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SpaceX’s Falcon Heavy Block 5 launch debut moved to April 10 to skip storms

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6 years ago

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SpaceX has decided to move Falcon Heavy’s commercial launch debut 24 hours to the right – from April 9 to 10 – to account for minor processing delays and dodge an unusually severe weather system currently active on the East Coast.

The giant rocket – flying for the first time in its Block 5 configuration – is now scheduled to lift off no earlier than (NET) 6:35 pm EDT (22:35 UTC) on Wednesday, April 10th. This minor delay has been more or less expected by close observers since Falcon Heavy Flight 2’s static fire test was pushed from March 31st to April 5th and is not a cause for concern. Instead, these fairly routine minor slips indicate that the rocket is flowing surprisingly smoothly towards its first commercial launch. In fact, launching on April 10th – five days after a static fire on April 5th – would be routine for Falcon 9, let alone a rocket with three Falcon 9 boosters.

In other words, these minor slips indicate that SpaceX has already managed to more or less transfer its growing experience and confidence with Falcon 9 Block 5 into its brand new Falcon Heavy Block 5 variant. Despite the fact that Falcon Heavy effectively has twice as many major components (three boosters and an upper stage vs. one booster and an upper stage) and uses a center core that is in many ways an entirely different rocket from Falcon 9, the Block 5 rocket’s first launch flow is proceeding as smoothly as SpaceX’s average Falcon 9 flow.

Those average flows typically take 24-48 hours to roll out to the pad and conduct a static fire, followed by an additional 24 or so hours before returning to the hangar. Excluding a few outliers, Falcon 9 Block 5 has typically required four to five days of processing between static fire and the first launch attempt, while the best and worst flows range from 3-10 days. If an observer was unaware that Falcon Heavy was launching, the rocket’s Flight 2 flow would thus be hard to distinguish from its far simpler brethren, suggesting that SpaceX learned a great deal from Falcon Heavy Flight 1 and has been able to communication almost all of the benefits of Block 5 to the triple-booster rocket.

SpaceX can thus retain its exceptionally efficient rocket processing backend, requiring minimal disruption to the rest of its Falcon 9 launch infrastructure and only minor modifications to dual-use hardware and facilities like Pad 39A’s transporter/erector (T/E) and main hangar. In fact, a single-core Falcon 9 booster – B1051 from Crew Dragon’s launch debut – can be seen in the background of Falcon Heavy’s processing, simultaneously undergoing refurbishment and checkouts before it ships West to Vandenberg Air Force Base.

It’s a small detail – both literally and figuratively – but it illustrates that Falcon Heavy integration is already routine enough that there is no need to suspend unrelated activities happening quite literally in the same room. As SpaceX continues to somewhat regularly launch Falcon Heavy, this routinization is likely to continually improve, particularly once the company begins to reuse Falcon Heavy boosters. The first Falcon Heavy-specific booster reuse is scheduled to occur as few as two months after the launch of Arabsat 6A for a USAF mission known as Space Test Program 2 (STP-2).

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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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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.

Published

3 weeks ago

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July 16, 2025

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Credit: SpaceX

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.

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:

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.

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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.

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4 weeks ago

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July 12, 2025

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(Credit: SpaceX)

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.

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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.

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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.

Published

1 month ago

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June 25, 2025

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spacex-ax-4-mission-iss
(Credit: SpaceX)

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.

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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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