Does the Earths core spin?
The rotation of our planet has an impact on almost all life on Earth. As the Earth turns on its axis, each part of the planet gets a chance to face the Sun and be warmed in a relatively short period of time. You could get a situation where there’s no rotation. In this case, a day would take an entire year, and it would only happen because of the Earth’s orbit around the Sun – Earth wouldn’t actually be turning in space. You could get another situation, where the Earth was tidally locked to the Sun, and the rotation was the same length of time as the year. In this case, Earth would always show the same face to the Sun – half the planet would be frozen, and the other half would be hot. Fortunately, the Earth does rotate, giving us days every 24 hours. But why does the Earth rotate? Earth rotates because of leftover momentum from the solar nebula that all of the planets and the Sun formed within. The solar nebula collapsed when a supernova sent a shock through a cold cloud of molecular hy
