According to @ surging news, an asteroid will pass the earth this week, which is expected to be the largest asteroid close to the earth in 2022. According to the National Aeronautics and Space Administration (NASA) near earth object research center, the asteroid named 1989 JA is about 1.77 kilometers in diameter. Taking the buildings on earth as a reference, the asteroid is twice the size of the world's tallest building, the Burj Khalifa**
Jingdong's main venue on June 18, 2022 - pre order on the evening of May 23
According to NASA, there are nearly 29000 near Earth Asteroids in space, but only 878 asteroids with a diameter of more than 1km. 1989 JA is one of them.
Frank markis, chief scientific officer of the space telescope company and senior planetary astronomer of SETI Institute, revealed that the asteroid travels at a speed of about 48280 kilometers per hour, 17 times the speed of a bullet in the air**
At this speed, the asteroid can orbit the earth in 45 minutes.
In addition, it is worth mentioning that according to the former CCTV news report, Wu Yanhua, deputy director of the National Space Administration, said China will start to establish a near Earth Asteroid defense system to jointly deal with the threat of near earth asteroid impact and contribute to the protection of the earth and human security**
*Wu Yanhua said that we should strive to implement a threatening asteroid at the end of the 14th five year plan or in 2025 and 2026. We should not only carry out close observation, but also carry out nearby impact, so as to change its orbit and carry out technical experiments, * so as to truly make China's new contribution to dealing with the threat of asteroids and extraterrestrial objects to the earth's home in the future.