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
Solar eclipses on the Moon Solar Saros series of the Moon is the equivalent to the Lunar Saros series of the Earth. In a package of Wills's Cigarettes, one of the tobacco cards first issued in 1928 for a few years displays the solar eclipse on the Moon showing the atmospheric ring. This is considered the first depiction of a solar eclipse as seen on the Moon. Solar eclipses on the Moon Solar eclipses on the Moon are caused when the Earth passes in front of the Sun, blocking its light. Viewers on Earth will see a lunar eclipse. The solar eclipses are only seen