A primitive solar system nebula was formed 45.5 billion year ago, and then primitive planets were formed in shrinking interstellar nebula taking 10 million years to 100 million years. Earth, the cradle of human civilization, was born as one of these planets. It is the third nearest Planet to the sun. Earth Earth, our home planet, is a beautiful blue and white ball when seen from space. The third planet from the Sun, it is the largest of the inner planets.
Earth is the only planet known to support life and to have liquid water at the surface.
Earth Earth is the third planet from the Sun and the fifth largest. The study of the Earth's surface and interior is the domain of geology. We know little directly about the interior of the Earth. Most of our information in that regard has come from seismic waves, which are vibrations in the body of the Earth. Earth Earth is the third closest planet to the Sun.