Can radio signals pass through all matter? Even a vacuum?

Question: Can radio signals pass through all matter? Even a vacuum?
- Keywords:
  matter,
  radio,
  vacuum
Asked by ilovepenguins to Akram on 14 Mar 2012.
- Akram Alomainy answered on 14 Mar 2012:
  
  Yes they can since they are form of electromagnetic waves which doe snot need a medium to travel 🙂 Sound waves travel inside vacuum but not outside it 🙂

Question: Can radio signals pass through all matter? Even a vacuum?