How does NASA's Spitzer Space Telescope use engineering to stay cold in space? To find out, a student (Danny Pudi) exchanges letters with a NASA engineer (Robert Picardo) via a helpful talking postage stamp (Richard Horvitz).
| Name | Type | Role | |
|---|---|---|---|
| Danny Pudi | Guest Star | ||
| Robert Picardo | Guest Star | ||
| Richard Horvitz | Guest Star |