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SpaceX’s third Falcon 9 launch in 31 hours aborted by “tiny helium leak”

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3 years ago

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SpaceX’s third Falcon 9 launch in a little over 31 hours was called off seconds before liftoff after the rocket’s onboard computer detected what Elon Musk says was a “tiny helium leak.”

SpaceX takes “no risks with customer satellites,” per the CEO, so the company has stood down from its October 6th launch attempt to inspect the rocket, analyze data gathered from tonight’s attempt, and ensure everything is in order. Barring surprises, SpaceX will attempt to launch Intelsat’s Galaxy-33 and Galaxy-34 geostationary communications satellites at the next earliest opportunity, a 69-minute window that opens at 7:06 pm EDT (23:06 UTC) on Friday, October 7th.

The abort ends an opportunity SpaceX had to launch three Falcon rockets faster than ever before, but the company was still able to crush a different (internal) record with two Falcon 9 launches in seven hours on October 5th. Thanks to its relentless pursuit of ever-higher launch cadences, SpaceX will likely have many opportunities to break its record of three launches in ~36 hours over the next several months.

Intelsat’s Galaxy-33/Galaxy-34 (G33/G34) mission would have been SpaceX’s third Falcon 9 launch in 31 hours and 20 minutes following the successful October 5th launches of Crew-5 (carrying four astronauts) at 12:00 pm EDT and Starlink 4-29 (deploying 52 Starlink satellites) at 7:10 pm EDT. The hat-trick record for a non-SpaceX vehicle appears to have been previously held by the Soviet R-7 rocket family, which completed three launches in 40 hours in March 1978.

SpaceX broke that record in June 2022 when it launched Starlink 4-19, SARah-1, and Globalstar FM15 a little over 36 hours apart. It will now have to wait for another opportunity to break its own record, though it likely won’t be too long as the company continues to target 60 launches in 2022 and “up to” 100 launches in 2023.

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Three launches; three landings; 36 hours. (Richard Angle/SpaceX)

According to a SpaceX launch controller, Falcon 9’s first ill-fated Galaxy-33/Galaxy-34 launch attempt was aborted automatically when the rocket’s flight computer “identified higher than expected cryo helium decay.” SpaceX’s Falcon rockets burn a combination of cryogenic liquid oxygen and chilled rocket-grade kerosene (RP-1), but they carry composite overwrapped pressure vessels (COPVs) filled with high-pressure helium gas to keep their propellant tanks pressurized as they’re drained. If SpaceX’s much larger Starship rocket shares some similarities, the company may also use a system of “helium injection” [PDF] inside Falcon 9 to keep its cryogenic oxygen and chilled kerosene as cold as possible. Musk later simplified the cause of the abort to a “tiny helium leak,” but the location of the leak (inside or outside of the rocket) was not specified.

Two hours before that, the Crew Dragon spacecraft SpaceX launched the day prior successfully docked with the International Space Station (ISS), delivering its ‘payload’ of four professional astronauts to the orbital outpost. One of those passengers is Russian cosmonaut Anna Kikina, marking the first time an American spacecraft has ferried a Russian to the ISS in almost 20 years. That milestone has unfortunately been muddied and overshadowed by the country’s illegal, genocidal, and increasingly suicidal invasion of Ukraine.

Crew-5 is the seventh Crew Dragon to successfully transport astronauts to the ISS and SpaceX’s eighth crewed launch overall since May 2020. Flying for the second time, Crew Dragon capsule C210 docked on its first try after a smooth 29-hour rendezvous. About a week from now, another crew of four astronauts will board a different Crew Dragon spacecraft and return to Earth, handing off the ISS to Crew-5 and ending SpaceX and NASA’s Crew-4 mission.

SpaceX is scheduled to launch at least one more batch of astronauts for NASA in March or April 2023, meaning that the company is expected to singlehandedly ensure NASA access to the ISS for almost three full years. At the start of the Commercial Crew Program and for most of its development, NASA intended for partners SpaceX and Boeing to alternate, but Boeing’s Starliner spacecraft is years behind schedule.

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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 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.

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2 hours 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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WATCH: SpaceX Starship Flight 10 launch

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4 hours ago

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August 25, 2025

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Credit: SpaceX

SpaceX is set to launch its tenth test flight of the Starship program, with a launch window that will open at 6:44 p.m. local time, or 7:44 p.m. on the East Coast.

Starship’s tenth test flight was originally scheduled for launch yesterday with a one-hour window that opened at 7:30 p.m. ET, but it was called off 17 minutes before that window even had a chance to open.

Starship Flight 10 rescheduled as SpaceX targets Monday launch

SpaceX moved the flight to tonight. It was also originally scheduled to have a launch window at the same time as Sunday, but it was pushed back 14 minutes to around 6:30 p.m. ET. There are storms in the area, as well as clouds over Starbase, so there is the off chance for another launch delay.

There are several big objectives for this launch, including the expansion of the operating envelope for the Super Heavy booster. SpaceX says there are “multiple landing burn tests planned.”

The booster will also be performing a few in-flight experiments to help with data collection. Specifically, real-world performance data on future flight profiles and off-nominal scenarios will be on the list of things SpaceX will be looking for.

Starship itself will have a few in-flight objectives that include the deployment of eight Starlink simulators that are similar in size to the next-gen satellites for the internet service. SpaceX was set to test this with Starship’s seventh test flight, which occurred in January 2025. However, the task was abandoned as the vehicle was destroyed before deployment could occur.

Liftoff conditions are currently looking favorable, and SpaceX will be eager to improve upon its Starship launch program as CEO Elon Musk has big plans for it in the coming years.

You can watch the launch below via SpaceX:

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Tesla looks to expand Robotaxi geofence once again with testing in new area

It looks as if Tesla is preparing for its next expansion of the geofence, potentially moving toward a much larger service area that could eclipse 150 square miles.

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7 hours ago

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August 25, 2025

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Credit: Joe Tegtmeyer | X

Tesla looks to be preparing for the potential expansion of the Robotaxi geofence once again, as the company was spotted testing the suite in an area well outside of the Austin service area.

After it first launched the Robotaxi platform on June 22, Tesla has managed to expand its geofence twice, essentially doubling the travel area both times.

The most recent expansion took the size of the geofence from 42 square miles to about 80 square miles, bringing new neighborhoods and regions of the city into the realm of where the driverless vehicles could take passengers.

However, it looks as if Tesla is preparing for its next expansion of the geofence, potentially moving toward a much larger service area that could eclipse 150 square miles.

Over the weekend, one fan noticed a Robotaxi validation vehicle testing in Bee Cave, Texas, which is roughly 25 minutes from the edge of the current geofence:

Tesla has been testing vehicles in the western suburbs of Austin for some time, and it seems the company is laying some groundwork to push its geofence expansion into Plaid Mode as competition with Waymo continues to be at the forefront of the conversation.

Waymo has been expanding with Tesla for some time, as the pace of expansion for the two companies has been relatively accelerated for the past couple of months.

Tesla’s expansions of the geofence sent a clear message to competitors and doubters, but it is still aiming to keep things safe and not push the envelope too quickly.

The geofence expansion is impressive, but Tesla is also focusing on expanding its vehicle fleet in both Austin and the Bay Area, where it launched a ride-hailing service in July.

Tesla Bay Area autonomous fleet to grow to over 100 units: Elon Musk

Still, safety is the priority at the current time.

“We are being very cautious. We do not want to take any chances, so we are going to go cautiously. But the service areas and the number of vehicles in operation will increase at a hyper-exponential rate,” CEO Elon Musk said during the Q2 Earnings Call.

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