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When Worlds Collide (1933) by Philip Wylie & Edwin Balmer
Earth is destroyed in a collision with the rogue planet Bronson Alpha, with about a year of warning enabling a small group of survivors to build a spacecraft and escape to the rogue planet's moon, Bronson Beta. Filmed, with major changes to the story, as When Worlds Collide (1951).
After Worlds Collide (1934) by Philip Wylie & Edwin Balmer Continues the story of When Worlds Collide, with both exploration of Bronson Beta and conflict with other groups of survivors.
