Heaven's War

When astronomers identified the asteroid Keanu as a Near Earth Object on a collision course with the sun, two teams of astronauts were dispatched to investigate. Upon arrival, they discovered that Keanu was not merely a rock, but a colossal alien spacecraft inhabited by a mysterious crew on a mission to seek help. As humans from competing scientific communities in Houston and Bangalore are transported into the ship's expansive habitats, they must navigate survival, unravel the aliens' intentions, and find a way to regain control of Keanu, which is now drifting away from Earth.