Double Asteroid hit Earth Millions Years Ago

Astronomy Science ~ crater of a double asteroid attack, described as 'one of the biggest cosmic disaster' in the history of the sol...

Astronomy Science ~ crater of a double asteroid attack, described as 'one of the biggest cosmic disaster' in the history of the solar system, have been found in Sweden.
The rare event happened around 458 million years ago, as a result of violent collisions in the asteroid belt about 12 million a year earlier.
NASA claimed that if an asteroid discovered on a collision course with Earth, there is 15 percent chance that the asteroid will be accompanied by the couple.

An ancient asteroid in the asteroid belt that has a diameter of about 120 miles (200 km) and scatter broken pieces of the magnitude which then crosses the Earth's orbit.
Two pieces of this asteroid crashing into a shallow sea that covered what is now becoming the Scandinavian region, according to the study.

Illustration of a double asteroid
Traces of that event is located in the center of Sweden and formed a crater Lockne which has a diameter of about 4.7 miles (7.5km), located about 12.4 miles (20 km) south of the city of Oestersund and Malingen crater has a diameter of about 0.4 mile (700 m).

The study, published in the journal Scientific Reports, supports old suspicions that these craters, separated by only 9.9 miles (16 km), due to the double attack very rarely caused by a pair of asteroids that are traveling together.

It is estimated that approximately 15 percent of all asteroids to travel in pairs, but very few craters on Earth are found from the 'double impact'.

The team led by Jens Ormoe of Astrobiology Centre in Madrid, Spain, drilling into the crater, looking for traces of sediment that changed when the collision.

They also mapped halo eruptions - the ring of debris that was thrown during a collision, which landed up to tens of miles away from the core of the crater. Experts say that Lockne craters created by asteroids measuring 1,960 feet (600 meters), whereas Malingen craters created by asteroids measuring about 490 feet (150 meters).
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Astronomy Science: Double Asteroid hit Earth Millions Years Ago
Double Asteroid hit Earth Millions Years Ago
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