Earth Impacts as a Threat to Civilization

Scientists assumed that at that time the Earth underwent bombardment by large asteroids.Studies at the sites confirmed the Earth’s encounters with celestial bodies.Such a large impact could occur on Earth every hundred million years.Impacts of a smaller size are more frequent and also less damaging.It is possible to detect dangerous objects decades before their collision with Earth.Smaller asteroids can also be cut by lasers, with no effect on Earth.The future project of 3 telescopes around Earth’s orbit can make it possible.Worldwide Spaceguard program does very important mission for the whole civilization.NASA’s Near Earth Object Program.22 September 2002.