Armageddon! Don't think an asteroid will crash against Earth? Check shocking answer

A new study has stated that the possibility of asteroid collision is higher than it was earlier expected. Here is all you need to know.

| Updated on: Apr 21 2023, 17:39 IST
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1/5 Red ring of ELVES (April 17) - It is a snapshot of ELVES lighting up the sky over Italy, a distinct type of transient luminous event. ELVES refers to the Emission of Light and Very Low-Frequency perturbations due to Electromagnetic Pulse Sources. The red ELVES captured in the image had a radius of approximately 350 kilometers and occurred at an altitude of about 100 kilometers above the surface, according to NASA. (NASA/Valter Binotto)
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Dark Seahorse nebula
4/5 Dark Seahorse Nebula (April 20) - Barnard 150, also known as the Dark Seahorse Nebula, is one of the most peculiarly shaped nebulae, located about 1200 light-years away towards the constellation of Cepheus. It is a dark molecular cloud and is so dense that the dust within blocks visible wavelengths of light. Telescopes that see visible light only detect ghostly dark patches in the sky, called Dark Nebulae. (NASA/Jeff Herman)
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Here is all you need to know about the possibility of an asteroid crash against Earth. (Pixabay)

Armageddon may not be that far off in the future, if we figure from what has happened in the past! It is quite rare when a space object strikes Earth's surface. However, it may not be that rare, as believed earlier. According to a new study, the chances of a destructive asteroid colliding with the Earth are many times higher than expected earlier.

Informing about the same, a report by stated. "The findings came to light when James Garvin, chief scientist of NASA's Goddard Space Flight Center, presented his work last week at the Lunar and Planetary Science Conference. Garvin and his colleagues used high-resolution satellite imagery to identify large rings around three impact craters and one probable impact crater that are 1 million years old or younger."

Garvin believed the rings represented craters tens of kilometres wide, which means that the asteroid-striking events must have been far more violent than the craters itself suggested. "And we're talking ten times more violent than the largest nuclear bomb in history, more than enough to blow a part of the Earth's atmosphere into space," the report further added.

It can be noted that the timeframe of 1 million years was selected because the past 1 million years have some of the best-preserved history of near-Earth object impact events, in terms of deposits and associated crater landform features.

While these couldn't have been as destructive as the asteroid strike that led to the extinction of the dinosaurs, they would have been sufficient to hinder the climate and cause local extinctions. "It would be in the range of serious crap happening," Garvin said, as quoted by the report.

Based on the parameters of testing, Garvin and his team have found that a 1-kilometre-wide or larger asteroid or comet strikes Earth every 600000 to 700000 years. "This would mean that in the past million years alone, four 1 km-wide objects pummeled the continents. With two-thirds of the planet being covered by water, that would equate to nearly a dozen such asteroids striking Earth in that time frame," the report added.

Notably, to put things in perspective, it was a massive asteroid, whose collision with Earth ended the era of dinosaurs.

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First Published Date: 21 Apr, 17:39 IST