The power to
adapt to the vacuum of space unaided. Variation of Environmental Adaptation.
User can survive and adapt to the vacuum of space unaided and are able to withstand atmospheres (heat intensity and any poisonous chemical elements), cosmic media (radiation), strange gravity (even sometimes that of a black hole), and lack of air.
Transuits ( DC Comics)
Oxygen Pills ( Fireball XL5)
AIR ( Toriko)
Roger Smith (American Dad!) surviving in the vacuums of cold space.
Hal and Jeff (Bowser's Kingdom)
Wirrn (Doctor Who) live in space for most of their lives, using a special enzyme to recycle carbon dioxide back into oxygen.
Frieza's race (Dragon Ball Z) can survive in the vacuum of space.
Being partially composed of Frieza's DNA, Cell (Dragon Ball Z) can also survive in the vacuum of space.
Due to their divine nature, Angels (Dragon Ball Super) can not only survive in outer space, but also freely travel through it.
Jason's (Friday the 13th) inability to die even allows him to survive the vacuum of space.
Guiron (Gamera vs Guiron) has specially desgined lungs for space travel
Terra, Ventus, and Aqua (Kingdom Hearts) can use their Keyblade Armor to survive in space.
Due to being an alien cat, Snookey Wookums (Krypto the Superdog) can survive in the vacuum of space.
Stitch (Lilo & Stitch), along with the rest of his cousins, doesn't require equipment to survive in outer space.
Cosmonaut (Valkyrie Crusade)
Vlitrumites (Image Comics) can adapt easily to the empty vacuum of space.