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Sun Probe

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"Oh no! Virgil! We brought the wrong box!"
— Brains
Season 1, Episode 11
Image Sun Probe
Air date 9th December 1965
Written by Alan Fennell
Directed by David Lane
Episode Guide
The Uninvited
Operation Crash-Dive

Sun Probe is the eleventh episode of Thunderbirds season 1, first broadcast on 9th December 1965. It was the fourth episode produced.


The retro rockets fail on a manned mission to retrieve matter from a solar prominence, putting the spaceship on collision course with the Sun. Thunderbird 3 and Thunderbird 2 are sent on a dual mission to transmit a radio signal that will remotely activate the Sun Probe's retros.

Episode GuideEdit

Main article: Sun Probe/Episode Guide


Main article: Sun Probe/Transcript

Regular Voice CastEdit

Guest Voice CastEdit


  • When broadcast in the 2-part 'cliffhanger' format, the first installment concludes with two external shots of Sun Probe successfully turning around and moving away from the Sun.
    • However, in the Australian version, part 1 ends after Thunderbirds 2 launches, and then the camera zooms in on the Sun, then screen fades to black.

International Rescue Equipment UsedEdit

Non-International Rescue Equipment UsedEdit



Main article: Sun Probe/Goofs

Foreign TitlesEdit

  • French: Vers le Soleil
  • German: Unternehmen Sonnensonde
  • Italian: Missione sole
  • Spanish: La Sonda del Sol; Sonda solar (DVD)
  • Dutch: Zonnesonde (VHS, DVD); Gevaarlijke koers (TV 1991)
  • Japanese: ロケット”太陽号”の危機

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