At 4:44 IST on Tuesday, NASA's DART spacecraft, which cost $308 million

Author: Jay Kappor

(2,500 crore), will be driven at 24,000 kph into an asteroid.

It will be used if scientists find out in the future that an asteroid

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asteroid is headed toward Earth and could be dangerous if it hits

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Even though the asteroid doesn't threaten Earth

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it will be a good test of DART's ability to move it away when it hits.

wikipedia.

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