Tom Corbett: Space Cadet - Seek and Destroy (1950) [colourised]

Tom Corbett and his crew attempt to prevent an asteroid from hitting Earth, from their rocket ship, Polaris.

"Tom Corbett is the main character in a series of Tom Corbett—Space Cadet stories that were depicted in television, radio, books, comic books, comic strips, and other media in the 1950s"
Wikipedia