Impact

Impact is an episode of Thomas' Adventures of Thunderbirds Are Go ( 2015 TV Series).

Plot:
Using a remote controlled rocket booster, Langstrom Fischler tries to bring a comet into Earth's orbit so he can mine it. When the rocket doesn't fire the comet ends up on a collision course with both the Earth and Globe One, a GDF space station with Captain Ridley O'Bannon aboard. While Duck, Rainbow Dash, Alan and Virgil take Thunderbird 3 up to the comet and find a way to destroy it, John must use Thunderbird 5 to help O'Bannon move Globe One out of the comet's path.

Trivia:
Rainbow Dash and Twilight Sparkle guest star in this episode