Video: NASA's Dart Spacecraft: A Planetary Defense System
Video: NASA's Dart Spacecraft: A Planetary Defense System
Asteroids impacting Earth are a significant potential threat. An impact of a single meteor hitting the Earth's surface could have devastating effects on the Earth's climate, its cities, and people. In an effort to protect the planet, NASA is developing a new type of spacecraft, one designed to collide with an asteroid on purpose to disrupt its orbit and potentially prevent meteor strikes.
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