SpaceX rolled Ship 42, the upper stage that will fly Starship's 15th test flight, out to the pad on Nov. 12, 2026. The vehicle is adorned with the words "Don't panic," a phrase that features prominently in "The Hitchhiker's Guide to the Galaxy." (Image credit: SpaceX)

SpaceX has a message for itself, and for the spacecraft set to make history today (Nov. 13): Don't panic.

The company's Starship megarocket will conduct its 15th test flight this afternoon, a landmark liftoff that will feature the first-ever attempt to catch both of its stages with its launch tower's "chopstick" arms.

On Thursday (Nov. 12), SpaceX rolled the Flight 15 upper stage, a vehicle known as Ship 42, out to the launch pad at its Starbase site in South Texas to prep. The company shared photos of the move on X , and in two of those shots we can see some intriguing words inked on the spacecraft: "Don't panic."

Another look at Ship 42 at the pad on Nov. 12.…