It is a scenario that comes out of a blockbuster Hollywood, an asteroid is heading towards Earth and is ready to end human existence. To mark Asteroid Day, here are four space rocks in a collision course with our planet.
The United Nations feared that the possibility of an asteroid breaking in a densely populated area would not be taken seriously enough, so it designated June 30 as International Asteroids Day to raise awareness of the potentially catastrophic occurrence.
The date was chosen because the biggest impact of asteroids in recorded history took place in Tunguska, Russia, on that day of 1908 when a huge asteroid exploded and destroyed hundreds of hectares of forest.
To mark the event, here are four asteroids that could enter the Earth.
With a diameter of 900 meters, if this huge rock hits our planet, the impact would be devastating. It is currently going through the solar system almost 70,000 kilometers and is reaching almost 30 kilometers on Earth every second.
The European Space Agency (ESA) has put second in its "list of risks" for asteroids near the Earth. The orbit of this smaller planet is not reliable, but it is planned to have an opportunity to access the Earth halfway through this century.
Experts warn that, suddenly, in 1979 XB could be much closer to the Earth, giving only a small variation in its orbit. Your next planned approach to Earth will arrive in 2024.
Near the size of four football fields, Apophis is in orbit very close to the Earth. It is currently more than 200 million kilometers, but every half a mile closer.
It regularly transmits the Earth to its orbit, but the latest radar and optical data suggest that we are about to do so when our planet emerges at a distance of only 30,000 kilometers in 2029. This is less than one tenth from the distance to the Moon.
It will continue flying through the Earth in mid-October of this year, which will take us to a safe distance of about 30 million kilometers. If Apophis exploded on Earth, it is estimated that the impact is similar to about 15,000 nuclear weapons that detonate at the same time.
This asteroid has the dubious honor of overcoming both the list of sentinels (Earth impact control system) and the list of impact risks of ESA. It is currently about 215 million kilometers from the Earth and is traveling at a speed of 117,935 square kilometers.
The danger of this asteroid is not expected to arrive until the end of the century when it is estimated that it will reach up to 40 times closer to the Moon. Luckily weighs, relatively small, 500 tons and is seven meters in diameter. The impact is expected to be slightly lower than the meteorite that hit the Russian city of Celiábinsk in 2013, which damaged thousands of buildings and injured hundreds of people.
The 2010 RF12 will be on Earth on August 13, 2022 when astronomers around the world will train their telescopes on the object to learn as much about it as possible and their trajectory.
2000 The SG344 is part of a group called Asteroids Aten, which has orbits aligned very closely with the Earth. It is expected to have an opportunity of impact in the next three or four decades. With only one meter in diameter, it is relatively small, but it is still double the Txeliábinsk meteorite, which caused so much damage six years ago.
He currently travels through the space to more than 112,000 kilometers per hour and is approximately 1.3 kilometers from Earth every second. Curiously, he travels around the Sun in almost the same time as the Earth, 353 days against the 365 days of Earth. This gives regular astronomers opportunities to observe the asteroid and evaluate the risk posed by it.
Of course, a large part of the danger with objects of dangerous space is that we do not like to detect them and that some of the most dangerous ones have surprised us by surprise. When the meteorite of Chelyabinsk entered the Earth's atmosphere without detecting it, its explosion threw up to 30 times more energy than the atomic bombs that the USA dropped to Japan in 1945.
Recently, last December, another asteroid broke through the Bering Sea, which was ten times more powerful than the bombs launched in Hiroshima and Nagasaki. Neither the searchers of objects close to Earth (NEOs) were crawled in advance. It is expected that International Asteroids Day will push authorities around the world to improve the way they detect potentially cataclysmic space rocks.
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