FIVE asteroids due to buzz Earth TODAY, as scientists claim space rock once robbed up to 60% of planet’s atmosphere

NASA has announced that at least five asteroids are due for close flybys of Earth on October 1 alone. Meanwhile, researchers believe one giant impact in the past once removed up to 60 percent of Earth’s atmosphere.

October appears to be kicking off with a bang as a barrage of space-borne boulders heads our way over the course of Thursday.

Asteroid 2020 SM4, measuring 9.9m (half a bowling lane) in diameter, passed at a distance of 3.1 million kilometers away, while the 15-meter long 2020 SU5, (as tall as the Hollywood sign), already passed at two million kilometers. 

The largest of Thursday’s unwanted visitors, 2020 RJ3, measures about half the height of the Great Pyramid of Giza, or 69m, and is expected to pass at 5.85 million kilometers.

Bringing up the rear are giraffe-sized (6.1m) 2020 SW6 and the half-telephone-pole sized (5.9m) 2020SN, at a distance of one million kilometers and 976,000km respectively. For context, the average distance between Earth and the Moon is about 239,000 miles (385,000 kilometers).

Meanwhile, researchers at Durham University in the UK just revealed they believe the Earth may have lost between 10 and 60 percent of its atmosphere in the asteroid collision suspected of creating the Moon.

In collaboration with an international team, lead author Dr Jacob Kegerreis et al ran more than 300 supercomputer simulations to determine the impact of asteroids on planetary bodies and the subsequent effect on their atmospheres.

At present, the leading theory suggests the Moon formed some 4.5 billion years ago following a collision between Earth and...

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