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What if an Asteroid Were Going to Hit Earth?

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We Asked a NASA Scientist.

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Well, it's important to find\h
asteroids before they find us

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in case we need to get them before they get us.\h
An asteroid impact is the only natural disaster

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that could be prevented. NASA's\h
Planetary Defense Coordination Office

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supports projects to discover asteroids and\h
to calculate their orbits far into the future.

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If an asteroid impact threat is discovered years\h
or decades in advance, then a deflection mission

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might be possible. The first order of business\h
for planetary defense is to find the asteroids.