Compound complex

I have these two sentences...

The trouble is that Whitman is talking through his hat, but the poor soul didn’t know any better.

All these galaxies are hurrying outward from each other in a vast universal expansion that began fifteen billion years ago, when all the matter in the universe was in a tiny sphere that exploded in the hugest conceivable shatter to form the galaxies.

Which is a complex sentence, which is a compound sentence? Or are they not either?

thanks