Spacecraft
Somewhere in the vast space--
*Vroom*
A huge metallic beast in the shape of a snake, opening its mouth wide and exposing its sharp fangs, passed at high speed, interrupting the deadly silence of space
No, it is not a beast. There is no living creature that can survive in the harsh conditions of space in which the planets swim. That thing was definitely a spacecraft!
The ship was a kilometer long and at least 100 meters wide at the very least. Although sound does not spread in space, one can imagine how loud this machine was just by looking at the amount of energy that comes out of its massive tail to push it forward.