
Astronauts blast off to explore the moon on Rocketship X-M or "Rocketship eXploration Moon". A spacecraft malfunction and some fuel miscalculations cause them to end up landing on Mars. On Mars, evidence of a once powerful civilization is found. The scientists determined that an atomic war destroyed most of the Martians. Those that survived reverted to a caveman like existence.
Genres:

Lloyd Bridges as Colonel Floyd Graham

Osa Massen as Dr. Lisa Van Horn

John Emery as Dr. Karl Eckstrom

Noah Beery Jr. as Major William Corrigan

Hugh O'Brian as Harry Chamberlain

Morris Ankrum as Dr. Ralph Fleming

Patrick Aherne as Reporter #1

Sherry Moreland as Martian girl

John Dutra as Physician

Kathy Marlowe as Reporter

Tom Coleman as Reporter (uncredited)

James Conaty as Doctor Taking Lisa's Blood Pressure (uncredited)

Sam Harris as Reporter at Press Briefing (uncredited)

Judd Holdren as Reporter #3 (uncredited)

Stuart Holmes as Reporter (uncredited)

Barry Norton as Reporter (uncredited)

Cosmo Sardo as Reporter (uncredited)

Bert Stevens as Reporter (uncredited)
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