It's a Hollywood-blockbuster scenario, an asteroid races to Earth and wipes out human existence. On the occasion of the Asteroid Day, four space rocks are on a collision course with our planet.
The United Nations fears that the possibility of an asteroid invading a densely populated area is not taken seriously enough and appointed June 30 the International Asteroid Day to draw attention to the potentially catastrophic event.
was selected because the largest asteroid impact in the history of Tunguska, Russia, occurred on that day in 1908, when a huge asteroid exploded and destroyed hundreds of acres of forest.
There are four asteroids that could invade the earth.
With a diameter of 900 meters, the impact of this huge rock on our planet would be devastating. It is currently roaring through the solar system at a speed of almost 70,000 km / h, approaching Earth by nearly 30 km every second.
The European Space Agency (ESA) has placed it in second place in its "risk list" for near-Earth asteroids. The orbit of this minor planet is unreliable, but it is predicted that it will hit Earth in the middle of this century.
Experts warn that in 1979 XB could suddenly come much closer to Earth, considering only a tiny deviation in its orbit. The next predicted approach to Earth is expected in 2024.
Apophis is about the size of four football fields and is in very close orbit to Earth. It is currently more than 200 million kilometers away, but moves every second half a kilometer closer.
Earth is regularly in orbit, but the latest radar and optical data indicate that we are about to shave when it passes our planet in 2029 at a distance of only 30,000 km Moon.
It will be flying over the ground next mid-October this year when it passes us about 30 million kilometers away. When Apophis is shot into the ground, the impact is estimated at about 15,000 nuclear weapons, which are immediately detonated.
This asteroid has the dubious honor of surpassing the Sentry List (Earth) impact monitoring system) and the ESA impact risk list. It is currently about 215 million kilometers from Earth, moving at a speed of 117,935 km / h.
The danger of this asteroid is unlikely to occur until the end of the century, when it moves 40 times closer than the moon. Fortunately, it weighs a relatively small 500 tons and has a diameter of about seven meters. The impact is expected to be somewhat lower than the Meteor, which hit the Russian city of Chelyabinsk in 2013, damaged thousands of buildings and injured hundreds of people. 2010 RF12 is due to pass Earth on August 13, 2022, when astronomers around the world align their telescopes on the object to learn as much as possible about it and its trajectory.
2000 SG344 is part of a group called Aten's asteroids whose orbits are very closely aligned with those of the Earth. It is expected to have an impact in the next three or four decades. At only 50 meters in diameter, it is relatively small, but still twice as large as the Chelyabinsk Meteor, which did so much damage six years ago.
It is currently moving through space at more than 112,000 km / h and is approaching 1.3 km closer to Earth every second. Interestingly, it moves around the Sun at almost the same time as Earth, 353 days compared to 365 days on Earth. This allows astronomers to observe the asteroid regularly and to assess the risk it poses.
Of course, a big part of the danger with dangerous space objects is that we are not good at discovering them and some of the most dangerous have surprised us. When the Chelyabinsk meteor invaded the Earth's atmosphere undetected, its explosion unleashed up to 30 times more energy in 1945 than the nuclear bombs dropped by the US on Japan.
It was not until December last year that another asteroid broke apart over the Bering Sea, which was ten years old times more powerful than the bombs on Hiroshima and Nagasaki. Neither Near Earth Objects (NEOs) were tracked in advance. It is hoped that the International Asteroid Day will encourage authorities around the world to improve the detection of potentially catastrophic space rocks.
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