Providence

From the ingenious author of Jennifer Government and Lexicon: a brilliant work of science fiction that tells the intimate tale of four people facing their most desperate hour-alone, together, at the edge of the universe.
The video changed everything. Before that, we could believe that we were safe. Special. Chosen. We thought the universe was a twinkling ocean of opportunity, waiting to be explored.
Afterward, we knew better.
Seven years after first contact, Providence Five launches. It is an enormous and deadly warship, built to protect humanity from its greatest ever threat. On board is a crew of just four-tasked with monitoring the ship and reporting the war's progress to a mesmerized global audience by way of social media.
But while pursuing the enemy across space, Gilly, Talia, Anders, and Jackson confront the unthinkable: their communications are cut, their ship decreasingly trustworthy and effective. To survive, they must win a fight that is suddenly and terrifyingly real.