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The spacecraft called
DART (acronym for double asteroid redirection test) should be launched and between December 2020 and May 2021. It should collide with the asteroid Didymoon in October 2022. L & Main objective of the mission is to modify the layout of the asteroid, 150 meters long.
The half-ton probe should reach Didymoon at a speed of 6 kilometers per second which will modify the orbit of the asteroid. experience, NASA hopes to get enough data and knowledge to treat asteroids that pose real risks to the Earth in the future.
NASA is not the only one involved in the operation. The European Space Agency (ESA) is also part of the project and will collect, with the Hera probe, data on asteroids after the impact. Two satellites accompanying Hera will land on fragments of the asteroid to collect information, study the internal structure of the rocks and calculate its gravitational field.
"With DART, we can show how to protect the Earth from a kinetic impact asteroid by placing the object on a different trajectory that would not threaten the planet," said Andy Cheng of the Physics Laboratory Johns Hopkins University Applied and One of the DART Project Leaders
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