Pandora's Star + Judas Unchained, The Dreaming Void

Pandora's Star e Judas Unchained (Commonwealth Saga Livros 1 e 2)
"The year is 2380. The Intersolar Commonwealth, a sphere of stars, contains more than six hundred worlds interconnected by a web of transport "tunnels" known as wormholes. At the farthest edge of the Commonwealth, astronomer Dudley Bose observes the impossible: over one thousand light-years away, a star . . . disappears. Since the location is too distant to reach by wormhole, the Second Chance, a faster-than-light starship commanded by Wilson Kime, a five-times-rejuvenated ex-NASA pilot, is dispatched to learn what has occurred and whether it represents a threat.
Opposed to the mission are the Guardians of Selfhood, led by Bradley Johansson. Shortly after the journey begins, Kime wonders if the crew of the Second Chance has been infiltrated. But soon enough he will have other worries. Halfway across the galaxy, something truly incredible is waiting: a deadly discovery whose unleashing will threaten to destroy the Commonwealth . . . and humanity itself."

The Dreaming Void (Void Trilogy Livro 1)
"AD 3580. The Intersolar Commonwealth has spread through the galaxy to over a thousand star systems. It is a culture of rich diversity with a place for everyone. A powerful navy protects it from any hostile species that may lurk among the stars. For Commonwealth citizens, even death has been overcome. At its centre is a massive black hole. This Void is not a natural artefact. Inside there is a strange universe where the laws of physics are very different to those we know. It is slowly consuming the other stars of the galactic core - one day it will have devoured the entire galaxy.
Inigo, a human, has started to dream of a wonderful existence of the Void. He has a following of millions of believers. They now clamour to make a pilgrimage into the Void to live the life they have been shown. Other starfaring species fear their migration will cause the Void to expand again. They are prepared to stop them no matter what the cost.
And so the pilgrimage begins..."