A physicist works to destroy a cluster of particles threatening to destroy the universe.

Six city blocks are transported intact to an alien planet. With Sam Wanamaker, David Opatoshu.

An alien plans to use a gifted child to help it take over Earth.

A man (Nick Adams) and woman (Nancy Malone) battle an alien duo on a distant world to decide the fate of...

Lovers decide whether to stay in a strange place and keep eternal youth or to return to their true ages.

A scientist mutated by rainfall on an alien world holds colleagues hostage and demands to return to Earth.

Lunar explorers risk attack if they don't surrender an alien ship.

Aliens choose amusement-park-ride passengers to travel into space and battle enemy forces.

Deadly white blossoms grown from alien spores overrun a spaceship.

An investigation reveals the link between the disappearances of four scientists born in a single county.

An ambitious woman pays dearly for destroying a creature captured by her husband in a laser experiment.

Invisible aliens fall to Earth and invade the bodies of influential humans to take control.

A scientist who talks to insects hires a new lab assistant, secretly an invading queen bee disguised in human...

An elderly woman waits for someone to look into a box and take the place of her spouse, trapped since 1929.

Inhabitants of Mars and its moons send representatives to Earth to study the phenomenon of murder.

A scientific mission to exchange a human for an alien conceals the aliens' invasion plans.

The planet Zanti coerces permission for its misfits, giant ants with human heads, to emigrate to Earth.

A captured creature asks fellow sea dwellers for help when a dictator plans to use it as a tourist attraction.

A scientist encounters a magnetic field that reverses the form of living matter.

A small creature sucked into a vacuum cleaner grows on energy from the machine's electric motor.

Astronauts believe they have been imprisoned on an alien planet and suffer torture.

Invaders enter a geologist's body and force him to seek the man who knows their secret.

An accident causes the brain of a dangerous paranoid and an Army psychiatrist to be switched.

A murder supports an insane scientist's assertion he saw a monster in a visible projection of human...

Two travel back in time to prevent human mutations by killing the man who caused them.

A Welsh miner volunteers to be the first subject for an experiment to speed human evolution.

A college professor implants a device in his brain that lets him fire an electromagnetic beam.

Scientists plan to save Earth from nuclear war by uniting it against a manufactured alien foe.

To create an imposter for the U.S. president, an Asian uses a serum that alters human form.

Two women kill a blackmailer. While looking for a good place to bury him, they take refuge from a storm in a...