NASA's DART spacecraft will smash with a test asteroid.
Monday will mark the dramatic climax of a NASA mission
It is to test whether the technique could one day protect Earth.
For the first time ever, we will measurably change the orbit of a celestial body
The research center built NASA's Double Asteroid Redirection mission spacecraft.
the 1,300-pound DART spacecraft will be moving at around 14,000 miles per hour.
When it collides with the 525-foot-wide asteroid Dimorpho
binary asteroid pair will be located at a safe distance of around 7 million miles from Earth
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