How to pronounce "galactica"

expansion of all that space big enough to cause galaxies and galactic clusters to actually

That energy blasts out of the galactic center and reaches all the way to the furthest edges of the galaxy

with the galactic plane, and we're currently hurtling away from it,

When astronomers turned the Hubble Space Telescope on this galactic mystery,

You can see that the galactic plane is no longer dark with dust.