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What effect did an asteroid have on the Earth?

By smashing into the Earth, the asteroid impact released huge amounts of dust into the atmosphere. This dust blocked the sun’s rays from reaching the surface of the Earth and this is bad news for plants.

How much energy would an asteroid affect to Earth’s surface?

The kinetic energy would be equal to (1/2)×1.4×1012×(20,000)2 = 2.8×1020 Joules. It is hard to imagine such immense energy. But over the course of geologic time, the planet earth has been struck many times by numerous asteroids, some very large.

Which has larger kinetic energy?

First, heavier objects that are moving have more kinetic energy than lighter ones: a bowling ball traveling 10 m/s (a very fast sprint) carries a lot more kinetic energy than a golf ball traveling at the same speed.

How can we prevent an asteroid impact?

An object with a high mass close to the Earth could be sent out into a collision course with the asteroid, knocking it off course. When the asteroid is still far from the Earth, a means of deflecting the asteroid is to directly alter its momentum by colliding a spacecraft with the asteroid.

What exploded over Russia?

The Chelyabinsk meteor was a small asteroid — about the size of a six-story building — that broke up over the city of Chelyabinsk, Russia, on Feb. 15, 2013. The blast was stronger than a nuclear explosion, triggering detections from monitoring stations as far away as Antarctica.

How big was the meteor that hit Arizona?

Barringer Meteor Crater and Its Environmental Effects. Forty-nine thousand years ago, a large 30 to 50 meter diameter iron asteroid impacted the Colorado Plateau in northern Arizona. The resulting massive explosion excavated 175 million tons of rock, forming a crater nearly a mile wide and 570 feet deep.

What are Neo’s?

Near-Earth Objects (NEOs) are comets and asteroids that have been nudged by the gravitational attraction of nearby planets into orbits that allow them to enter the Earth’s neighborhood.

What is the biggest asteroid?

Ceres