You can also read and listen to this episode on our blog: https://islamic-audio-book.com/8-the-perfect-equilibrium-in-the-universe/
The All-Merciful created the seven heavens in layers, and the billions of stars and galaxies in the universe move in perfect equilibrium in the paths set out for them.
The speed of the Earth as it rotates around the Sun is 1,670 kmph (1,038 mph), and the speed of the Solar System as it orbits the centre of the galaxy is 720,000 kmph (950,000 kmph). Yet, despite these speeds, the Earth is in complete safety.