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Starship Flight 9 is within the books, and SpaceX reflew a Tremendous Heavy Booster and, on the third attempt, bought a Block 2 Ship previous Second Stage Engine Cutoff (SECO). Nonetheless, Ship 35 wouldn’t full its major goal of acquiring warmth defend reentry information on account of its uncontrolled reentry. This didn’t deter SpaceX, nevertheless, as simply eight days after Flight 9, Booster 16 was rolled to Pad A for static fireplace testing.
Booster 14
Booster 14, together with Ship 35, lifted off of Pad A at 6:36:30 pm CDT. The complete ascent burn of the Booster was flawless, with all 33 engines working. Then got here scorching staging, the place SpaceX was trying to regulate the path of the flip in comparison with previous flights, which had been randomized primarily based on the Ship’s engine thrust differential.
To assist within the flip, SpaceX blocked off a portion of the new stage ring to assist nudge the Booster within the right path.
This flip labored flawlessly, and Booster then restarted the ten inside ring of Raptors, having all 13 engines working for the boost-back burn. This implies that SpaceX has addressed a number of the ignition points with the Raptor throughout previous flights.
Flight 9 Hotstaging (Credit score: Max Evans for NSF)
Booster 14 then proceeded to carry out its glide again maneuver to the Gulf for a splashdown, as SpaceX didn’t intend to catch this Booster a second time. This glide again was completely different from previous flights, as SpaceX was trying to make use of the next angle of assault to induce extra drag on the car. This is able to, in flip, gradual the Booster down extra and thus require much less gas throughout its touchdown burn.
Nonetheless, when Booster 14 bought to its touchdown burn, it skilled a Fast Unscheduled Disassembly (RUD). It’s presently unknown what precisely led to the Booster exploding as quickly because it ignited its engines for the touchdown burn, however the elevated stresses throughout reentry may have led to a failure.
Whereas SpaceX didn’t get to check its experimental touchdown burn configuration, groups may have gained quite a lot of information from flying a reused Tremendous Heavy Booster for the primary time.
Booster 14 Reentry (Credit score: Jerry Pike for NSF)
Ship 35
The Ship, nevertheless, wouldn’t fare in addition to the Booster. After Stage separation, Ship 35 flew by means of its ascent burn and made it to SECO. This marks the primary Block 2 Ship to make it to SECO, and the primary Ship since Ship 31 on November 19, 2024, throughout Flight 6. There was some potential outgassing coming from the attic and into the engine bay; nevertheless, the origin level is unclear.
Shortly after SECO, Ship 35 began to spin, probably on account of a leak from one of many aft Liquid Oxygen (LOX) dump valves on the backside of the skirt. A kind of did get pink scorching simply after SECO however cooled off instantly. This spin would proceed for the complete coast section of Ship 35, and it might have been the rationale why the payload bay door couldn’t open.
Because of the spin that was being brought on by some kind of leak, Ship 35 was unable to carry out the deliberate Raptor relight and needed to be safed by the flight pc by venting the remainder of the ullage gasoline and propellant overboard. With no tank strain to regulate the Response Management System and the Ship spinning, Ship 35 reentered Earth’s ambiance uncontrolled. It was then misplaced on account of a breakup throughout reentry.
Starship in area pic.twitter.com/ztS3Zo9lH2
— SpaceX (@SpaceX) May 31, 2025
The precise reason behind the spin and the exact supply of a potential leak remains to be unknown, however after three flights of Block 2, SpaceX nonetheless doesn’t have good re-entry information utilizing the brand new warmth defend design and flaps. As a result of the Ship entered uncontrolled, it couldn’t full its mission as described within the launch license. Thus, the Federal Aviation Administration (FAA) is requiring a Mishap Investigation to be carried out.
Which means that SpaceX might want to both shut the investigation or get a security exemption from the FAA to fly Flight 10. The lack of Booster 14 is roofed by the “accepted test-induced harm exceptions requested by SpaceX for sure flight occasions and system elements”, as said within the press launch from the FAA.
Whereas these previous three flights have offered SpaceX with information on failure modes for Starship, they’ve misplaced six months of time on gathering reentry information, which is important for trying to make the 2026 Mars Switch window.
The @FAANews is requiring a mishap investigation into Flight 9 of Starship.
“The mishap investigation is concentrated solely on the lack of the Starship car which didn’t full its launch or reentry as deliberate.”
— Adrian Beil (@BCCarCounters) May 30, 2025
Flight 10: Booster 16 and Ship 36
Up subsequent is Flight 10, which is now confirmed to be Booster 16 on its maiden flight alongside Ship 36.
Booster 16 has accomplished its 33 engine static fireplace simply 10 days after Flight 9, which beats the earlier document set by Booster 13 after Flight 5 by in the future.
With this take a look at accomplished, it’s set to roll again to Mega Bay 1 for last launch preparations. In keeping with Shana Diaz, who’s the Director of Starship Engineering, Booster 16 is slated to be caught on its first flight.
Full period static fireplace of all 33 Raptor engines on the Tremendous Heavy booster forward of Starship’s subsequent flight take a look at pic.twitter.com/03JFMVxQOT
— SpaceX (@SpaceX) June 6, 2025
This raises questions on SpaceX’s plans for Booster 17. Presently, there appear to be solely three Block 2 Ships left to fly: Ship 36, 37, and 38. This is able to possible line as much as have Booster 16 on Flight 10, Booster 15-2 on Flight 11, after which Booster 16-2 on Flight 12, assuming SpaceX catches Booster 16. This leaves Booster 17 as a backup Booster if there is a matter, like Ship 32 was the backup Ship if Ship 30 or Ship 31 couldn’t fly.
Ship 36 is presently in Mega Bay 2 getting fitted with engines and its aft flaps. This Ship will possible exit for static fireplace testing sooner fairly than later. Assuming Ship 36 is examined throughout the subsequent few weeks, early July is a really possible timeline for the Launch of Starship Flight 10. However it additionally relies on the Mishap investigation and any mitigations SpaceX wants to use to the Ship or Booster.
Featured Picture: Flight 9 Ignition (Credit score: D Sensible for NSF)
