It was this down when stars struck a roof



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A fragment of meteorite which affected Northern Australia about 4,700 years ago

SSPL / Getty Images

The rock fell from the sky, pushing through the roof, pushing out a shell, and destroying bed and television. When they were home to residents of San Carlos, Uruguay that day, on 18 September, 2015, they were astonished.

Surprise was that the hole in the roof was not caused by a rock thrown by a man, but a place that had fallen to earth from space. This could be said to be the first meteor to be confirmed in Uruguay (it is thought that Argentina had been deceived), which was very interesting for local researchers, to # 39 t publish a recent paper on the decision.

“First, they thought that someone put a stone out,” said Gonzalo Tancredi, co-author of the paper, from the University of the Republic of Montevideo. “But they found a strange stone covered with black material, and they thought it would be a meteorite.” T

Traditionally the quilt itself was a member of the LL6 Chondrite family, a group of rocky meteorites most common on Earth. But given more interest, it was an example of a “destructive accident”, a meteorite which causes damage to property – or even people – on Earth.

No one has ever been killed with a meteorite, and only one person has ever been struck. That was Ann Hodges, a local resident who lived in Alabama in 1954, who hit a space rock on her thigh after falling through the roof of her house.

But with a weight of 712 grams and traveling at 87 meters every second, the Meteorite San Carlos – as it was called – seems to have been deadly hit. And an astonishing reminder of the danger that our planet has brought to the planet by falling rocks.

“Especially [San Carlos] The stars are falling straight on the cross making the story straight, ”says Jorge Zuluaga from the University of Antioquia in Colombia. “Although meteorites have water almost completely on the world, most of them fall in remote and remote areas like seas, wilderness and guns.” T

When a spaceship comes into our atmosphere it is called a meteor. The people who hit the ground are called meteorites, but these are not the only ones that are dangerous to us. Meteors which explode near the ground can cause serious damage, as can be seen several times in recent times.

Perhaps the most striking event is Chelyabinsk meteor, a rock that exploded over the town of Chelyabinsk in Russia on 15th February, 2014. Measuring 20 meters in size and moving at 19 kilometers per second, the rock exploded about 30 kilometers above the city up. 30 times the Hiroshima atomic bombing bombing. The blow he made caused the damage to 1,500 and destroyed thousands of buildings.

On December 18, 2018 a massive meteor explosion spread over the Bering Sea, spreading as much energy as ten Hiroshima atomic bombs. The event had not run until March 2019 as it was so remote. And in February 1, a meteor exploding Cuba caused serious pressure, with evidence of thousands of people.

At the top end of the scale is a Tunguska event on 30 June, 1908, when a small area of ​​Russia, with a small Russian population, was blown down by air blown from a meteor with 1,000 atomic Hiroshima bombs. And of course, the asteroid who destroyed the dinosaurs is 66 million years ago.

As we improve the chances of reaching these major events – over 98 per cent of the asteroids near Earth are known above one kilometer of size – the smaller events like Larger concern is Chelyabinsk meteor or the Meteorite San Carlos. An estimated one in a hundred of the asteroids less than 100 meters is found.

“Meteorites are steadily falling,” said Detlef Koschny, co-manager of the Near-Earth Object of the Europe Space Agency's Space Numbers Program. “We are extremely worried about events such as the Chelyabinsk event where a 20 meter object has entered the Earth's atmosphere over a large city. ”

In some estimates, there will be about 49 tonnes of metric asteroid matter going down on the Earth every day. Tancredi, which is based on existing data, says that people receive evidence from seven sources every year, but that an increasing number of meteorites reach the surface – t an average of 5,600 over the whole of the Land each year, and 1,600 over land.

The number of serious accidents reported has continued to increase over the years, with 14 reported between 1994 and 2005, and 22 between 2006 and 2017. This is almost certainly a result of an increase in t international communications, however, rather than moving into space rocks.

However, these data – along with recent events – show that we need to keep a close eye on incoming rocks. New telescopes such as the Telescope from Synoptic Study, scheduled to work in 2020, give us better information about debris that may be dangerous. However, the current threat is quite clear.

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