Neobjasněná akta NASA – Série 4
| Epizoda | Název | Délka |
|---|---|---|
| S04E01 | Pluto's Stranger Things | 42 min |
| S04E02 | Rise of the Planet Killer | 42 min |
| S04E03 | A President's Close Encounter | 42 min |
| S04E04 | The Earth Next Door | 42 min |
| S04E05 | Curse of the Full Moon | 42 min |
| S04E06 | Did Earth Have Two Moons? | 42 min |
| S04E07 | Mystery of the Invisible Planet | 42 min |
| S04E08 | Mars's Deepest Secret | 42 min |