NATS 1750 Lecture 9: NATS 1750 lecture 9
30 Dec 2019
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Document Summary
Impacts that create craters on planetary surfaces have been recognized as an important geological process in recent decades. The older the rock, the more likely there will be evidence of the impacts. Impacts can have significant effects on the geology, biology, and atmosphere of a planet. Large enough impacts actually blow part of the atmosphere off. Although the larger the mass of the object the greater the damage it does, the big problem with asteroids is the speeds they are travelling at. The average solar system object moves at 20-30km/s. The 2 things to look at with asteroids are: Impacts are not necessarily large objects, but they can have some pretty lasting effects. The danger of the impact is the kinetic energy of the object due to the relative velocity at which it. The energy not only levels the ground directly under the asteroid but has many other effects.
