Starship Flight 12 Just Entered Final Launch Mode - Wet Dress Rehearsal NAILED IT!

Added: 2026-05-18

[00:00:00]Starship Flight 12 is now closing in on launch after SpaceX completed the final major pre-flight tests for the next generation Block 3 launch system, including a full duration 33 engine static fire and the first full stack wet dress rehearsal at pad 2. A tentative launch date and updated flight path have now emerged with final confirmation still pending in the coming days. At the same time, hardware for flights 13 and 14 is already rapidly moving through testing and assembly. Let's go through all of these developments one by one.

[00:00:33]Things began with the roll out of booster 19 to the launch site early Wednesday morning ahead of its long-awaited static fire test for flight 12. After arriving at the launch site, the launch tower's chopstick arms lifted the booster from its transport stand and placed it onto the launch mount, preparing the vehicle for testing operations. The booster had previously attempted a static fire last month, but the test was automatically aborted roughly 3 seconds after ignition due to abnormal pressure readings detected by padside sensors. Following that incident, SpaceX conducted extensive inspections and corrective work on pad 2, including validation of the water deluge system and propellant feed infrastructure to ensure the source of the abort had been resolved before another firing attempt. Booster 19 itself also returned with a notable hardware update, a black thermal protection coating applied on the aft end. The coating is intended to protect the booster's aft section from the intense heating experienced during atmospheric re-entry. The concept is not new and was first publicly revealed months earlier in official renderings of SpaceX's next generation block 3 superheavy design. The most anticipated milestone came on Thursday when SpaceX successfully conducted a full duration 33 engine static fire test. All 33 Raptor V3 engines ignited simultaneously, ramped up to full thrust, and sustained firing for approximately 15 seconds before a nominal shutdown. The firing validated the synchronized startup sequence, ignition timing, propellant flow stability, engine control coordination, and sustained operation of the entire propulsion system under full thrust conditions. Unlike previous superheavy static fires at pad 1, which were typically conducted at reduced throttle levels to limit stress on ground infrastructure, this full thrust test served as a major validation of pad 2's upgraded flame trench and water deluge systems under the extreme heat, pressure, vibration, and acoustic loads generated by a fully firing booster. The successful completion of the full duration firing strongly suggests that the sensor or pressure anomalies responsible for the previous aborted test have now been resolved. Following the static fire, an unexpected issue occurred during launch tower operations.

[00:02:46]As the chopstick arms were being lowered after the test, the mechanism experienced an abrupt stop before operators carefully lowered the arms back to the bottom stop position. Teams were later observed inspecting the carriage skate assemblies for an extended period, indicating a possible mechanical anomaly during arm movement.

[00:03:05]One of the skates was subsequently removed and replaced, suggesting that it may have experienced damage or excessive wear during operations.

[00:03:14]After launch tower operations resumed, ship 39, booster 19's flight partner for flight 12, rolled out to pad 2 for full stack testing. The rollout revealed several notable upgrades on the ship aimed at future Starship development.

[00:03:28]Four docking port simulators are integrated onto the vehicle with two near the forward section and two near the aft region. These replicate the interfaces Starship will use for onorbit refueling operations. A capability critical for future missions to the moon, Mars, and beyond. Flight 12 will help evaluate how these components withstand the extreme stresses and vibrations of flight, allowing SpaceX to further refine their design for future operational missions. The aft vent system has also been modified to function as a reaction control system using controlled gaseous venting to generate small attitude control forces for fine orientation adjustments during orbital docking operations. Another visible change is the installation of metallic thermal protection tiles in select regions near the edges where the windward and leeward sides of the vehicle meet. Similar tiles previously flew on ship 37 during flight 10, where they experienced melting and oxidation during re-entry, spraying rustlike debris across the vehicle. Their repositioned layout on ship 39 may help engineers better evaluate durability and thermal performance under different heating conditions as SpaceX continues refining the heat shield system.

[00:04:37]Additional thermal protection test patches can also be seen on parts of the leeward side and aft flaps using what appears to be an adhesive-based attachment method instead of the standard mechanical pin system. Although these regions do not experience peak re-entry heating, they are subjected to significant aerodynamic suction forces, making them useful test areas for evaluating adhesive performance and tile retention under aerodynamic loading.

[00:05:03]The ship was lifted and stacked at top the booster early Saturday morning, marking the first fully stacked Starship vehicle assembled at pad 2. Shortly afterward, the ship quick disconnect interface connected with the upper stage for the first time at the new launchpad, establishing propellant, electrical, and communication connections between the ground systems and the vehicle. The first wet dress rehearsal attempt took place on Saturday with several hours spent attempting to initiate propellant loading before the test was eventually aborted. The following day, the tri vent system connected to the ship quick disconnect arm was replaced with a single outlet uni vent system, suggesting the scrub may have been caused by restricted vent flow, possibly due to ice accumulation near the vent outlets. Unlike the previous trient configuration, the UNI vent design provides higher velocity gas flow, likely improving vent clearance and reducing ice buildup during propellant loading.

[00:05:58]After the issue was resolved, SpaceX successfully reattempted the wet dress rehearsal on Monday, marking the first full stack wet dress test at pad 2 and the first integrated propellant loading campaign for the next generation block 3 launch system. Propellant loading was completed in roughly 30 minutes.

[00:06:16]Significantly faster than operations at pad 1, which often took 45 to 50 minutes thanks to upgraded tank farm infrastructure, including higher capacity pumps and improved thermal conditioning systems. After reaching full propellant load, the countdown progressed into the terminal sequence, including activation of the water deluge system, indicating the countdown had reached just seconds before engine ignition during a normal launch attempt.

[00:06:41]As planned, the rehearsal concluded before engine ignition, after which both stages were detanked and safed. Overall, the wet dress rehearsal simulated a near complete launch countdown under flight-like conditions, allowing engineers to validate coordinated cryogenic propellant loading, integrated pad-to vehicle operations, and the performance of the full launch system ahead of flight.

[00:07:04]With wet dress testing now complete, the vehicles are expected to return to the production site for post- test inspections, final closeouts, and installation of flight termination system hardware ahead of launch. In parallel, ship 39 will receive Starlink mass simulators. Inert payload units designed to replicate the mass, structural characteristics, and deployment behavior of operational satellites during flight 12. These payloads will help validate Starlink deployment operations from Starship ahead of future operational missions.

[00:07:35]Based on current FAA operational advisories and maritime notices, flight 12 is currently targeting launch as early as May 15th, although the schedule could still shift slightly depending on final processing progress in the coming days. Unlike previous Starship flights, which followed trajectories between Florida and Cuba, flight 12 is expected to use a more inclined flight path across the Caribbean, potentially reflecting updated mission requirements or revised safety constraints. Despite the trajectory adjustment, the mission is still expected to conclude with a controlled splashdown in the Indian Ocean following the suborbital test flight. Preparations for subsequent Starship missions are also progressing rapidly. Ship 40 assigned to flight 13 has already completed its cryogenic proof testing campaign. Interestingly, the ship underwent only a single cryogenic proof test cycle rather than the multiple test rounds typically performed on previous Starship vehicles.

[00:08:31]Unlike ship 39, no additional structural load tests involving the flaps or catch interfaces were observed during the campaign. These could indicate increasing confidence in the block 3 vehicle structure following earlier qualification testing on ship 39 or reflect SpaceX's efforts to accelerate vehicle processing and flight cadence as the design matures. The ship has since returned to the production site where Raptor engine installation is expected ahead of static fire testing. Its flight partner, booster 20, is now fully stacked and preparing for its own cryogenic proof campaign. Hardware for flight 14 is also steadily advancing through production. Ship 41 stacking operations continue inside me 2 while booster 21 is being assembled inside me 1 with oxygen tank ring sections continuing to arrive for integration.

[00:09:21]Back at the launch site, pad 1 rebuild work continues to progress steadily.

[00:09:25]Sheet pile installation is nearing completion with pile drilling actively progressing, setting the stage for the next major phase, flame trench excavation. Structural assembly of the launch mount gantry has also begun with initial framework sections already being installed. At the same time, components for the new launch mount and flame diverter system continue arriving at the production site for preassembly before transport to the pad. At the current pace of construction, Pad 1 appears on track to return to launch operations next year.

[00:09:57]Now, let's discuss the latest updates from the world of science and technology. Blue Origin is rapidly advancing multiple parts of its Blue Moon lunar program, including pre-flight testing of the Endurance lunar lander, Viper rover deployment systems, astronaut training hardware, and docking technologies for future Artemis moon missions. At the center of these efforts is the Blue Moon Mark1 lander, named Endurance, which is preparing for the company's first lunar landing attempt under the Blue Moon Pathfinder Mission One. The mission is expected to launch aboard New Glenn no earlier than 2026 and attempt a landing near the moon's south pole. This uncrrewed cargo mission is designed to demonstrate precision lunar landing technologies, cryogenic operations, and surface cargo delivery capabilities before Blue Origin flies its crew capable human landing system for NASA's Aremis program in future lunar missions. In recent months, Blue Origin has accelerated testing activities for endurance. One of the earliest major milestones involved modal testing where engineers used vibration sensors and excitation equipment while the lander was mounted on the new Glenn payload adapter to study how the spacecraft responds to launch loads and dynamic forces during ascent. Following structural testing, Endurance successfully completed thermal vacuum testing to verify the lander structural and thermal performance under simulated space conditions where spacecraft must withstand intense solar heating and deep cold depending on orientation along with extreme temperature changes caused by varying illumination conditions on the lunar surface. As of May 6th, engineers were preparing the vehicle for radio frequency compatibility testing to ensure the lander's onboard communication, navigation, and electronic systems can operate together without interference. Overall, the Pathfinder lander continues making steady progress toward launch readiness.

[00:11:49]Blue Origin also completed a critical demonstration of a payload offloader mechanism supporting a future Blue Moon cargo mission planned to deliver NASA's Viper rover to the lunar south pole.

[00:12:00]Viper, short for volatiles investigating polar exploration rover, is a robotic rover designed to search for water, ice, and other volatile compounds that could support future long-term lunar exploration and insitue resource utilization efforts, including potential propellant production from lunar resources. During the demonstration, engineers used the lander's forward module and a Viper mass simulator to test the system designed to lower the rover from the elevated cargo deck to the lunar surface after landing. The mechanism was evaluated across simulated lunar slopes of up to 10° while engineers verified stable and controlled deployment throughout the lowering sequence. The test validated the systems ability to safely deploy the rover in lowgravity and uneven lunar terrain where a failed deployment could leave Viper stranded on the lander. Blue Origin has also supplied a full-scale Blue Moon Mark II crew cabin mockup to NASA for astronaut training and mission simulations tied to future Aremis lunar landings. The full-size training cabin will support mission rehearsals, space suit checkouts, and simulated moonwalk preparations.

[00:13:08]The company has also completed soft capture testing of the lander's docking system designed to meet international docking system standard requirements.

[00:13:16]The system will first fly aboard the crew capable Blue Moon Mark II lander supporting future docking and crew transfer operations with the NASA Orion spacecraft. Overall, Blue Origin's broader lunar program continues advancing steadily across multiple parallel development tracks ahead of future Artemis missions. Thank you for tuning in for the latest science news and Starship updates. If you enjoyed this video, please hit the like button, leave a comment, and share it with your friends. Also, don't forget to subscribe to the channel and turn on notifications so you never miss an episode.