r/spacex
SpaceX: “Launch rehearsal complete. During a flight-like countdown, more than 5,000 metric tonnes (11+ million pounds) of propellant were loaded on the fully stacked Starship and Super Heavy V3 vehicles for the first time”
Jerry Pike (NSF): “You'll Thank Me Later! The SpaceX Starship transport barge has just been fitted with a brand new roof enclosure, and looks just about fully finished. This barge should soon transport some of the first Superheavy boosters and ships from Starbase to the Cape!”
r/SpaceX Flight 12 Official Launch Discussion & Updates Thread!
Welcome to the Starship Flight 12 Launch Discussion & Updates Thread!
| Scheduled for (UTC) | May 19 2026, 22:30 |
|---|---|
| Scheduled for (local) | May 19 2026, 17:30 PM (CDT) |
| Launch Window (UTC) | May 19 2026, 22:30 - May 20 2026, 00:00 |
| Weather Probability | Unknown |
| Launch site | OLPad 2, SpaceX Starbase, TX, USA. |
| Booster | Booster 19-1 |
| Ship | S39 |
| Booster landing | The Super Heavy Booster 19 will make a planned splashdown near the launch site. |
| Ship landing | A landing and splashdown in the Indian Ocean is expected |
| Trajectory (Flight Club) | 2D,3D |
Spacecraft Onboard
| Spacecraft | Starship V3 |
|---|---|
| Serial Number | S39 |
| Destination | Suborbital |
| Flights | 0 |
| Owner | SpaceX |
| Landing | A landing and splashdown in the Indian Ocean is expected |
| Capabilities | More than 100 tons to Earth orbit |
Details
Third-generation second stage of the two-stage Starship super heavy-lift launch vehicle.
History
The third-generation Starship upper stage will be introduced on flight 12.
Watch the launch live
No livestreams currently available/known
Stats
☑️ 1st Starship Full Stack launch
☑️ 680th SpaceX launch all time
☑️ 61st SpaceX launch this year
☑️ 1st launch from OLPad 2 this year
☑️ 0:00:00 turnaround for this pad
☑️ N/A hours since last launch of booster Booster 19
Stats include F1, F9 , FH and Starship
Timeline
| Time | Event |
|---|---|
| -0:50:00 | GO for Prop Load |
| -0:38:53 | Stage 2 LOX Load |
| -0:35:00 | Stage 1 LOX Load |
| -0:34:43 | Stage 1 LNG Load |
| -0:32:59 | Stage 2 LNG Load |
| -0:21:30 | Engine Chill |
| -0:02:50 | Stage 1 Propellant Load Complete |
| -0:02:10 | Stage 2 Propellant Load Complete |
| -0:00:30 | GO for Launch |
| -0:00:17 | Flame Deflector Activation |
| -0:00:03 | Ignition |
| 0:00:00 | Liftoff |
| 0:00:00 | Excitement Guaranteed |
| 0:00:45 | Max-Q |
| 0:02:22 | MECO |
| 0:02:24 | Stage 2 Separation |
| 0:02:30 | Booster Boostback Burn Startup |
| 0:03:30 | Booster Boostback Burn Shutdown |
| 0:06:34 | Stage 1 Landing Burn |
| 0:06:59 | Stage 1 Landing |
| 0:08:11 | SECO-1 |
| 0:17:37 | Payload Deployment Sequence Start |
| 0:27:15 | Payload Deployment Sequence End |
| 0:38:37 | SEB-2 |
| 0:47:47 | Atmospheric Entry |
| 1:02:29 | Starship Transonic |
| 1:03:08 | Starship Subsonic |
| 1:05:06 | Starship Landing Burn |
| 1:05:08 | Landing Flip |
| 1:05:17 | Starship Landing |
| 1:05:24 | Starship Landing |
| 1:05:26 | Starship Landing |
Updates
| Time (UTC) | Update |
|---|---|
| 12 May 21:17 | GO for launch. |
| 12 May 11:19 | NET May 19, TBC. |
| 05 May 17:58 | NET May 15 per new marine navigation warnings, TBC. |
| 01 May 16:51 | NET May 12, TBC. |
| 04 Apr 14:17 | NET May. |
| 09 Mar 12:32 | NET April |
| 29 Jan 12:13 | Targeting March |
| 07 Jan 15:28 | Moved to NET Q1 based on vehicle testing progress. |
| 05 Nov 2025, 18:10 | NET January. |
| 10 Sep 2025, 08:21 | Added launch |
Resources
Partnership with The Space Devs
Information on this thread is provided by and updated automatically using the Launch Library 2 API by The Space Devs.
Community content 🌐
| Link | Source |
|---|---|
| Flight Club | u/TheVehicleDestroyer |
| Discord SpaceX lobby | u/SwGustav |
| SpaceX Now | u/bradleyjh |
| SpaceX Patch List |
Participate in the discussion!
🥳 Launch threads are party threads, we relax the rules here. We remove low effort comments in other threads!
🔄 Please post small launch updates, discussions, and questions here, rather than as a separate post. Thanks!
💬 Please leave a comment if you discover any mistakes, or have any information.
✉️ Please send links in a private message.