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Daily Mirror
Daily Mirror
World
Alice Peacock

Asteroid spotted two hours before reaching Earth as large fireball seen in sky

Astronomers are appealing for footage of an asteroid which was spotted just two hours before its potential collision with Earth.

The three-metre asteroid careered into view as it was breaking through the Earth’s atmosphere on March 11.

It was believed the mass may have collided with Earth off the coast of Iceland.

According to IFL Science reports, the asteroid was special in that astronomers only noticed it two hours before it made contact with Earth.

This makes it only the fifth asteroid that had been spotted before potentially hitting the planet.

It was currently unclear as to whether the asteroid actually hit the water or broke up in the atmosphere.

Local reports from Iceland stated that there was a large fireball overhead, while the near-earth objects coordination centre at the European Space Agency (ESA) was now appealing for any footage of the asteroid.

It is currently unclear as to whether the asteroid actually hit the water, or rather broke up in the atmosphere (Getty Images/Science Photo Library RF)

They note that this was unlikely, due to the remoteness of the location.

The sighting was made at a Hungarian observatory by Krisztián Sárneczky, who pointed out a “bright and fast-moving object” in the night sky.

The object was named Sar2593 and was initially deemed to have an impact likelihood of less than 1 percent.

However, automatic systems later picked up that Sar2593 in fact had an impact chance of 100 per cent and would land somewhere near Northern Ireland.

Astronomers from all over the world cottoned on and quickly began attempting to monitor the object - no easy feet when it was travelling at 18.5 kilometres (11 miles) per second and flying so close to Earth.

The object was estimated to have impacted Earth at some point between 9.21 and 9.25pm UTC, assuming it made it through the atmosphere before burning up.

There was currently no concrete evidence to suggest it did touch down, though there had been indications of a large impact off the coast of Iceland that may be connected.

Signals were picked up by both Iceland and Greenland, originating from an impact with an energy release of around 2 to 3 kilotons of TNT.

The asteroid would have broken down and vaporised in parts as it moved through the atmosphere (Getty Images/Science Photo Library RF)

This was considered an indication an asteroid of around 3 to 4 metres in diameter had hit the ocean nearby.

The asteroid would have broken down and vaporised in parts as it scorched through the atmosphere at that speed.

This breakdown was often seen as large flashes of light, often called a fireball, which occurred as friction with eth air breaks the asteroid apart.

Anyone who may have spotted the asteroid and have footage, was being asked to submit it to the ESA here .

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