What would an asteroid or comet impact be like?

What would an asteroid or comet impact be like?
Originally published under Creative Commons by 360info™.
Editors Note: Interactive: see how often comets and asteroids strike the Earth
What would an asteroid or comet impact be like?
What would an asteroid or comet impact be like?
What would an asteroid or comet impact be like? That depends on lots of things, such as how big it is, how fast it’s travelling – and how close you are to the impact site.
Originally published under Creative Commons by 360info™.
Editors Note: Interactive: see how often comets and asteroids strike the Earth
With NASA announcing an asteroid is on a possible collision course with Earth 23 years from now, 360info looks at the planet’s early warning systems.
If an asteroid threat emerged, Earth would need to be ready. Scientists are continually working to give the planet the best range of defensive strategies.
Spurred by a near miss, the world built an alert system to detect asteroids heading for Earth. But it’s not clear who would decide what to do next.
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