Animals That Survive in Space

Animals That Survive in Space

Radiocity
By Radiocity Team
Published Jun 30, 2025
These microscopic “water bears” can survive radiation, freezing, dehydration—and even the vacuum of space.

Tardigrades – The Ultimate Survivor

These microscopic “water bears” can survive radiation, freezing, dehydration—and even the vacuum of space.

Cockroaches have survived low-Earth orbit and cosmic radiation, proving how disturbingly tough they really are.

Cockroaches – Orbital Survivors

Cockroaches have survived low-Earth orbit and cosmic radiation, proving how disturbingly tough they really are.

These roundworms endured six months on the ISS and returned to Earth alive, adapting to microgravity conditions.

Nematodes – Microscopic Space Guests

These roundworms endured six months on the ISS and returned to Earth alive, adapting to microgravity conditions.

Brine Shrimp – Dormant but Alive

Artemia (sea monkeys) can be sent in dormant cyst form to space and hatched later—perfectly unharmed.

Bacillus Bacteria – Radiation-Proof

Some Bacillus strains survive direct exposure to space UV and cosmic radiation—an experiment that stunned scientists.

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Fruit Flies – First Insects in Space

Launched aboard a V-2 rocket in 1947, these flies were the first animals to experience space and return alive.

Moss Spores – Frozen Yet Thriving

Moss spores exposed to outer space conditions revived after rehydration, surviving extreme cold and radiation.

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