The Expanse. Book 4. The Fire of Sibola

When the protomolecule that penetrated the Solar System created a portal in orbit around Uranus, humanity gained access to deep space, the ability to explore thousands of planets. Illus, also known as Terra Nova, is the first planet to which humans have reached. But the colony, barely having established itself, has become a territory of bloody strife.

Independent settler Asters are trying to fend off the attack of a powerful corporation that has decided to seize the most valuable resources of this world. The conflict on Illus is confidently escalating - and it threatens to spill over to Earth.
To reconcile the warring parties, the 'Rocinante' is heading to Illus. But the more its captain, James Holden, thinks about the mission entrusted to him, the more he is convinced that it is doomed to fail.