The Sky of Earth (Law of Universal Gravitation #2)

The Sphere is a terrible cosmic predator that has come to our world from a parallel universe. The Sphere has destroyed and consumed Titan. Now it is moving towards the Sun, devouring planets and their satellites along its path. According to scientists' calculations, it will reach Earth in a few weeks. Humanity is doomed to perish, becoming part of the Black Hole by the end of this month.