Alien hunters think everything is a spaceship. They think chips of paint floating in space are spaceships. They think dirt on camera lenses are spaceships. They think car hubcaps thrown into the air are spaceships. They think seagulls with sunlight reflecting from their wings are spaceships. They think car headlights on a distant hill are spaceships. They think party balloons are spaceships. They think Venus is a spaceship.