Formation and evolution of the Solar System impact event, the Tunguska event, the Chelyabinsk meteor and the impact feature Meteor Crater in Arizona. The process of accretion, therefore, is not complete, and may still pose a threat to life on Earth. Over the course of the Solar System's evolution, comets were ejected out of the inner Solar System by the gravity of the giant planets, and sent thousands of AU outward to form the Oort cloud, a spherical outer swarm of cometary nuclei at the farthest extent of the Sun's gravitational pull. Eventually, after about 800 million years, the gravitational disruption caused by galactic tides, passing stars
Partial/total eclipses on the Moon on Earth as a partial lunar eclipse, unlike the Earth where a total eclipse only occurs in a small spot while the remainder of a solar eclipse are total, on the Moon, a part is shown as partial and a part is shown is total as the center of the Earth's shadow's coverage totality is more larger than the Moon on Earth. In some eclipses, about 15-20% of a surface of the moon covered by the center of the Earth's shadow sees totality where the Earth eclipses the sun, some eclipses has about 75-80% of the surface covered by the