CNN report: The NASA mission that could 'potentially save all of humankind'

A NASA spacecraft will deliberately slam into an asteroid called Dimorphos. The Double Asteroid Redirection Test mission, or DART, aims to s...

A NASA spacecraft will deliberately slam into an asteroid called Dimorphos. The Double Asteroid Redirection Test mission, or DART, aims to see if this kind of kinetic impact can help deflect an asteroid posing a threat to Earth. CNN space and defense correspondent Kristin Fisher has more.

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