is there air within other planets

Question: is there air within other planets
- Keywords:
  planet,
  solar system,
  space,
  universe
Asked by iamsofast on 22 Sep 2021.
- Giles Strong answered on 22 Sep 2021:
  
  Many other planets have atmospheres, but they are not guaranteed to be breathable. A “terraforming” process might be necessary to change the atmosphere of planets to make them suitable for living on by humans.

Question: is there air within other planets