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Compiled by Tuhi Martukaw / USA
The National Aeronautics and Space Administration (NASA), in November 2021 last year, successfully launched the DART mission probe to conduct the world’s first “Kamikaze” experiment, which will change the orbit of an asteroid through impact. The DART probe is about to take the initiative to hit a small satellite, Deimos, in orbit near the asteroid Didymos, which is about 11 million kilometers from Earth, on September 26, trying to change the speed and path of the Earth. ‘asteroid. In the event that there is a real threat of a planet hitting the earth in the future, it can be used as a countermeasure to protect the earth.
In the 1998 Hollywood disaster film, NASA sent oil drills to drill well into an asteroid that was about to hit the earth, blow up the asteroid, and save the earth from a devastating disaster. just two weeks away, “said Michelle Chen, engineer of the DART mission. However, unlike the film, NASA’s” Double Asteroid Redirection Test “DART mission will launch in November 2021. The plane will have to bring down the planet out of its orbit, it is expected to actively hit a small satellite “Dimofus”, which is about 11 million kilometers from the earth, and orbits near the asteroid “Didimos” on September 26th. “.
“We are always looking in the sky for potential new asteroids and threats, and this test will help us build confidence that we have mitigation strategies in place once a threat is detected,” said Riley, chief executive officer of NASA’s DART program. the device will hit “Dimofus” at a speed of 23,758 kilometers per hour, which will change the travel speed by 1% and change the orbital period of “Didymos”. Didymus is about 780 meters wide, Demophors is about 160 meters wide. If a Demophors-sized star explodes, it can release the destructive power of a normal nuclear bomb multiple times. Asteroids of 300 meters and more can cause damage. Destruction will exceed the reach of a continent on earth. If the asteroid exceeds 1000 meters, it will cause worldwide destruction. This mission is NASA’s first kamikaze experiment. If successful, he will be a human. For the first time, the dynamics of celestial bodies in the solar system have been changed in an “artificial way”.
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News source: China Television News
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