Intrepid

The Intrepid was an orbital spacecraft used by the Tau'ri in an alternate timeline.

In the alternate timeline where the Stargate Programme never existed due to Ba'al, the Intrepid was on a mission when the thrusters malfunctioned, sending the orbiter to a decaying orbit. An astronaut named Dr. Samantha Carter attempted to save the orbiter when the crew abandoned it. However, the Intrepid crashed over an ocean, and Carter's body was never found, but was deemed a hero.

Behind the scenes
Officially, there is no real life spacecraft that goes by the name "Intrepid".