The All-Consuming World by Cassandra Khaw

A diverse team of broken, diminished former criminals get back together to solve the mystery of their last, disastrous mission and to rescue a missing and much-changed comrade… but they’re not the only ones in pursuit of the secret at the heart of the planet Dimmuborgir. The highly-evolved AI of the universe have their own agenda and will do whatever it takes to keep humans from ever controlling the universe again. This band of dangerous women, half-clone and half-machine, must battle their own traumas and a universe of sapient ageships who want them dead, in order to settle their affairs once and for all.