A rogue asteroid hitting Earth to end human civilisation as we know it is very much possible. Last time such an asteroid hit Earth, it eliminated more than half of life on the planet and ended the reign of dinosaurs. To avoid such a fate, space agencies around the worl keep a close watch at out planetary surroundings.

If an asteroid slated to hit Earth is detected, one of the strategies is to fire nuclear warheads to disintegrate it before it makes contact with Earth.

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However, this approach needs careful calculations. Smallest of the mistakes would mean that we will just be splitting one asteroid into two or more parts. This means that instead of just one impact, we would get several at different locations of Earth. Hence this approach draws criticism.

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However, researchers have now concluded in a study that such an approach is safe. For this, they created computer models that analysed effect of 1-megaton-yield nuclear bomb on a 100-meter wide asteroid.

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Five different asteroid orbits were analysed and the researchers concluded that if we could hit the asteroid two months before impact, it is possible to reduce the debris to just 0.1 per cent of the total mass of the asteroid. If we could hit it six months before impact, researchers say that the debris can be reduced to 1 per cent of the total mass.

The study has been published in journal Acta Astronautica.

A rogue asteroid hitting Earth to end human civilisation as we know it is very much possible. Last time such an asteroid hit Earth, it eliminated more than half of life on the planet and ended the reign of dinosaurs.

A rogue asteroid hitting Earth to end human civilisation as we know it is very much possible. Last time such an asteroid hit Earth, it eliminated more than half of life on the planet and ended the reign of dinosaurs. To avoid such a fate, space agencies around the worl keep a close watch at out planetary surroundings. If an asteroid slated to hit Earth is detected, one of the strategies is to fire nuclear warheads to disintegrate it before it makes contact with Earth. Also Read | Winds on Jupiter are speeding up and no one knows why However, this approach needs careful calculations. Smallest of the mistakes would mean that we will just be splitting one asteroid into two or more parts. This means that instead of just one impact, we would get several at different locations of Earth. Hence this approach draws criticism. Also Read | NASA has captured image of 'eye in the sky' However, researchers have now concluded in a study that such an approach is safe. For this, they created computer models that analysed effect of 1-megaton-yield nuclear bomb on a 100-meter wide asteroid. Also Read | A long rainy spell induced by volcanism helped dinosaurs become huge Five different asteroid orbits were analysed and the researchers concluded that if we could hit the asteroid two months before impact, it is possible to reduce the debris to just 0.1 per cent of the total mass of the asteroid. If we could hit it six months before impact, researchers say that the debris can be reduced to 1 per cent of the total mass. The study has been published in journal Acta Astronautica.

Nuking a rogue asteroid is a safe strategy for Earth after all, says study

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