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DART represents a component of a joint NASA-ESA mission to study near Earth object kinetic impact deflection.
The mission is to capture a series of images of a near earth object (NEO) and transmit them back to Earth.
"There is no relation there," said Paul Chodas, a scientist with NASA's Near Earth Object Program.
Only 25% of those have been detected, many through Nasa's Near Earth Object Programme.
The European Space Agency runs the Near Earth Object Coordination Centre that continually assesses the risk from nearby asteroids.
(The size of the asteroid, Paul Chodas, of the agency's Near Earth Object Program, said, "is dictated by the size of the bag").
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In Defending Planet Earth: Near-Earth Object Surveys and Hazard Mitigation Strategies, a 2010 report by the U.S. National Research Council, researchers highlighted several potential options for fending off an interloper, given a few decades of warning.
Donald K. Yeomans, who manages the jet propulsion lab's Near-Earth Object Program, said the Earth's atmosphere is continually streaked by space stuff, ranging from the basketball-size (several a day) to the Volkswagen-size (twice a year).
There's no way that a miscalculation or equipment failure (or another near-Earth object) could accidentally nudge it close enough that Earth's gravitational pull would eventually cause it to crash into the planet?
Phaethon is classified as a "potentially hazardous" near-Earth object as its orbit is less than two million miles from Earth every December.
"Although they wouldn't cause a global catastrophe if they impact the Earth, they still do a lot of regional destruction," said Lindley Johnson, who oversees the Near-Earth Object Observations Programme at Nasa headquarters in Washington DC.
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