2023-07-09 22:12:07
<영화 '플래닛' 포스터>
“A giant asteroid is about to pass the Earth at close range.” An exciting and festive atmosphere is created in anticipation of a spectacular space show that will unfold as meteor showers pass by from all over the world. A report warning of a meteorite collision is issued from the space station Mir, which was tracking the orbit of an asteroid group, but it is dismissed as an unlikely event on Earth. The force of meteorite fragments in the blind spot behind the asteroid is 10 times that of a nuclear bomb. A cataclysm unfolds as buildings and roads collapse after destroying the space station, and eventually collapsed by asteroids heading towards Earth. Planet, produced by the Russian Federation, is a science fiction (SF) disaster movie with the theme of an asteroid impact. The story unfolds between the destroyed space station and the devastated earth after the fall of the meteorite. All over the world, including Australia, New Zealand, Okinawa, Primorsky Krai, and Korea, suffered great damage from meteorites, and realistically portrayed the collapse of urban infrastructure and turning into ruins. A celestial body smaller than a planet orbiting inside it. In contents such as movies, novels, cartoons, and games set in the universe, it is a regular material that appears as a threat that can destroy the earth and a pioneering target rich in rare resources. Meteorite is a generic term for asteroids and rocks that fall to the surface from space. An asteroid collision is not just science fiction, but a real threat. On June 30, 1908, a 40 to 50 m class asteroid fell in the Tungska region of Russia, knocking down 80 million trees within a distance of 25 km and devastating Siberian forests. In order to raise awareness of the risk of asteroid impact and to respond internationally, the United Nations (UN) designated this day in 2016 as ‘World Asteroid Day’. An asteroid the size of it narrowly missed the vicinity of the Earth at 24 kilometers per second. At that time, the distance the asteroid passed was only 1/5 of the distance between the Earth and the Moon. The existence of Asteroid 2019 OK was recognized on Earth only a few hours ago from the nearest point of view. Like the asteroids in the movie Planet, when an asteroid with a diameter of more than 100 m collides with Earth, a city is destroyed. If the diameter exceeds 1 km, the Earth’s ecosystem cannot recover. The National Aeronautics and Space Administration (NASA) is monitoring about 2,300 ‘potentially dangerous asteroids (near-Earth asteroids)’ with an orbit within 750 km from the Earth and a size of 140 m or more. A defense strategy to protect the Earth from asteroids is also being devised. Last year, the United States conducted an experiment to change the trajectory by crashing a spacecraft into an asteroid. By using the spacecraft as a kinetic impactor and accurately colliding with an asteroid with a diameter of 160 m, it is expected to shorten the asteroid’s orbital period by about 1%. Directly detonating an asteroid with a nuclear bomb in outer space, as in Michael Bay’s 1998 film “Armageddon,” is also being discussed. The scientific community considers the possibility of an asteroid larger than 140m colliding with the Earth within 100 years to be low. However, the universe is still an unknown territory for mankind. Efforts to prepare for unexpected cosmic threats must continue. Reporter Jeongeun Park [email protected]
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