Beyond the possible

At some point, the voice of the autopilot warned of the approach of an unknown object. Since the ship had already passed the Oort cloud, this information alerted the scientist: two light years behind, no comets and asteroids were observed on the way to Proxima Centauri.
Approaching the display, Dmitry, with peripheral vision, noticed something in the porthole. Looking at him, he was dumbfounded by what he saw. A huge spaceship of planetary proportions inexorably devoured the entire universal view ahead.
The astronaut examined the design of an alien object in a surprised stupor. The approaching array was so alarming that Dmitry could not say anything for a minute, only one thought visited: "Who created this?"