WORLD WITHOUT END 1956 & SATELLITE IN THE SKY 1956 Science Fiction Thrillers DOUBLE FEATURE

WORLD WITHOUT END 1956 - Astronauts returning from a voyage to Mars are caught in a time warp and are propelled into a post-Apocalyptic Earth populated by mutants.
SATELLITE IN THE SKY 1956 - A military orbital spacecraft with an atomic bomb is launched, which malfunctions and threatens the crew and a stowaway, and the Earth should it land and explode.