Can Axions escape the Black Holes? I read about Tachyons and Gravitational Waves and also about Exotic matter, really nothing can escape a Black Hole, can Axions escape for providing a new hope?
Once you are inside a black hole, every direction leads towards the singularity.  So for every particle, whether it is massless or not, would travel towards the singularity, and not escape.
Axions have not been proved to exist, but they would also not be able to escape.