Sinopsis
The science of meteoritics deals with the study of meteorites and their impacts on Earth. Meteorite craters on the Moon, the inner planets, and the moons of the outer planets are quite evident and numerous. Several remnants of ancient meteorite craters remain on Earth, suggesting it was just as heavily bombarded as the rest of the solar system. Meteorite impacts have produced many strikingly circular features in the crust scattered throughout the world. They are testimony to disasters in the past caused by major meteorite impacts. In the future, many more craters will be found, painting a clear picture of what transpired long ago.The evidence hints that impact cratering is an ongoing process, and the planet can expect another major meteorite impact at any time.
Large meteorite impacts had a major effect on the history of life since the very beginning. Throughout geologic history, asteroids and comets have repeatedly bombarded Earth, implying such events are a continuing process. Sometimes asteroids the size of mountains struck the planet, extinguishing large numbers of species.The most celebrated extinction was the death of the dinosaurs and many other species.The dinosaur killer left its footprints all over the world.
Content
- Origin of the Solar System: Formation of the sun and planets
- The Formation of Earth: planetary origins
- Cratering Events: Historic meteorite impacts
- Planetary Impacts: Exploring Meteorite Craters
- Asteroids: Wandering rock fragments
- Comets: cosmic ice debris
- Meteorite Craters: formation of impact structures
- Impact Effects: the global changes
- Death Star: impact extinction of species
- Cosmic Collisions: Asteroid and comet bombardment
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