Clarabella 7

Clarabella 7 was the United States Space Administration space capsule flown by Colonel Hartigan, USAF. Like its ill-fated pilot, the capsule is still aboard Mothership Zeta. It is on display in a lab off the main Hangar.

Behind the scenes
It appears identical to the real-world Project Mercury capsules, including a hatch and window for the pilot and a retro-rocket unit attached to the heat shield with steel straps. The number 7 might also refer to number of astronauts chosen for the Mercury program.