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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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SpaceX aces Starship test flight 10 with successful payload deployment

The mission began at 6:30 p.m. local time in Starbase, Texas, when the launch of Starship initiated. After about eight minutes, stage separation was completed, and the Super Heavy Booster headed back down to Earth for a planned splashdown in the Indian Ocean:

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34 minutes ago

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August 26, 2025

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Credit: SpaceX

SpaceX aced its tenth Starship test flight on Tuesday night after multiple delays pushed the mission back to this evening. Originally scheduled for Sunday night, SpaceX had two delays push the flight back to Tuesday, which ultimately provided ideal conditions for a launch attempt.

The tenth test flight of Starship had several objectives, including a successful splashdown of the booster in the Gulf of America, the deployment of eight Starlink simulation modules from the PEZ dispenser, and a splashdown of the ship in the Indian Ocean.

SpaceX Starship Flight 10: What to expect

SpaceX successfully achieved all three of these objectives, making it one of the most successful test flights in the Starship program. There was no attempt to catch the booster this evening, as the company had been transparent about it ahead of the launch.

The mission began at 6:30 p.m. local time in Starbase, Texas, when the launch of Starship initiated. After about eight minutes, stage separation was completed, and the Super Heavy Booster headed back down to Earth for a planned splashdown in the Indian Ocean:

Starship was then the main focus of the rest of the broadcast as it completed its ascent burn and coasted through space, providing viewers with spectacular views as the mission headed toward new territory, including the deployment of Starlink simulators. This would be the first time SpaceX would attempt a payload deployment.

The deployment works like a PEZ dispenser, as the simulators were stacked on top of one another and would exit through a small slit one at a time.

This occurred roughly 20 minutes into the mission:

An hour and six minutes into the flight, Starship reached its final destination, which was the Indian Ocean. A successful splashdown would bring closure to Starship’s tenth test flight, marking the fifth time a test flight in the program’s history did not end with vehicle loss.

It was also the first of four test flights this year that will end with Starship being recovered.

SpaceX is expected to launch Starship again in approximately eight weeks, pending the collection of data and other key metrics from this flight.

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WATCH: SpaceX attempts Starship’s tenth test flight after two delays

This evening, SpaceX has already stated that conditions appear to be approximately 45 percent favorable for launch. This is ten percent less than last night, when the mission was eventually scrapped around 7 p.m. local time.

Published

3 hours ago

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August 26, 2025

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Credit: SpaceX

SpaceX is set to launch Starship tonight, provided the weather cooperates and everything with the ship goes smoothly.

This is SpaceX’s third attempt to launch Starship for its tenth test flight, with Sunday’s and Monday’s attempts both being scrapped due to a leak and unfavorable weather conditions on the respective days.

This evening, SpaceX has already stated that conditions appear to be approximately 45 percent favorable for launch. This is ten percent less than last night, when the mission was eventually scrapped around 7 p.m. local time.

SpaceX Starship Flight 10: What to expect

Propellant load of the upper stage and Super Heavy booster is already underway, and the launch is expected to occur at 6:30 p.m. in Starbase, Texas.

You can watch the tenth test flight of Starship below via SpaceX:

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SpaceX calls off Starship 10 flight attempt once again

SpaceX is calling off a potential launch of Starship this evening, marking the second consecutive night the tenth test flight of the massive rocket will be delayed.

Published

1 day ago

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August 25, 2025

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Credit: SpaceX

SpaceX is calling off a potential launch of Starship this evening, marking the second consecutive night the tenth test flight of the massive rocket will be delayed.

Originally planning to launch on Sunday at 6:30 p.m. local time in Starbase, Texas, SpaceX was forced to delay the tenth launch of Starship due to a hardware issue.

“Ground side liquid oxygen leak needs to be fixed. Aiming for another launch attempt tomorrow,” CEO Elon Musk posted on the social media platform X.

Starship Flight 10 rescheduled as SpaceX targets Monday launch

The launch was then pushed to Monday night, and the launch window was set to start at the same time as Sunday. However, SpaceX would push it back to 6:44 p.m. due to some weather issues.

Eventually, Starship seemed like it was trending toward a launch, but weather continued to persist in the area, with thunder, rain, and lightning all threatening in the area.

At around 7:03 p.m., SpaceX decided to stand down once again, confirming weather was the culprit of yet another delay:

SpaceX will likely try again on Tuesday night, but the company has not yet confirmed if it will open another launch window.

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