EARTH cannot defend itself against the thousands of “city killer” asteroids that are zooming around space near our planet, Nasa chiefs warn. They reckon there are about 15,000 undetected ...
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NASA's DART: Redirecting an asteroid to protect Earth
The first flight mission for planetary defense, NASA's Double Asteroid Redirection Test (DART) seeks to validate a method to ...
Earth cannot defend itself against the thousands of “city killer” asteroids that are zooming around space near our planet, ...
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