Explosion force like 880 million tons of TNT: a massive asteroid is approaching Earth - ForumDaily
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Explosion force equal to 880 million tons of TNT: massive asteroid approaching Earth

A massive asteroid named after Apophis, the "god of chaos" in Egyptian mythology, is picking up speed as it approaches Earth. It is expected to collide with our planet in 2068. The impact would be equivalent to the force of an explosion of 880 million tons of TNT. The publication told in more detail Dailymail.

Photo: Shutterstock

Astronomers from the University of Hawaii have confirmed that the massive asteroid Apophis is accelerating on its way due to inhomogeneous radiation that acts like a tiny engine.

Previously, the impact was thought to be impossible, but new data suggests the asteroid has a chance of crashing into Earth on April 12, 2068 - and it could have catastrophic consequences.

Apophis is over 1000 feet (304 m) wide and the impact would be equivalent to the simultaneous explosion of 880 million tons of trinitrotoluene (TNT).

Apophis was discovered on June 19, 2004 by astronomers at Kitt Peak National Observatory in Arizona.

Since then, the asteroid has been tracked in an orbit around the Sun in less than one Earth year.

Earlier this year, researchers spotted Apophis with a Subaru telescope and determined that it was picking up speed, a phenomenon known as the Yarkovsky effect. When the asteroid's body is heated by sunlight, it emits energy in the form of heat, which acts as tiny propulsion for the space object.

According to Wikipedia, the Yarkovsky effect is the appearance of a weak reactive pulse due to thermal radiation from the surface of an asteroid that is heated during the day and cooling down at night, which gives it additional acceleration. This effect explains why the number of asteroids that have reached Earth is greater than what followed from previous calculations.

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Astronomers said a collision in 2068 was not possible before this happened, but they have changed their minds since then.

Dave Tolen, one of the astronomers, said: “The new observations we got with the Subaru telescope earlier this year were good enough to reveal the acceleration of Apophis, and they show that the asteroid is moving away from pure gravity orbit by about 170 meters per year. , which is enough for the implementation of the scenario of the impact of 2068 ”.

Apophis is also ranked the third highest threat on the NASA Risk Table.

According to the table, the probability of an asteroid colliding with the Earth in 48 years is one in 150.

The asteroid contains nickel and iron, and can be seen from radar images that it is elongated, making it somewhat similar to peanuts.

The researchers note that more observations are needed to fully understand the amplitude of the Yarkovsky effect and how this affects the orbit of Apophis.

And they plan to "know for sure if there is a possibility of collision by 2068."

When Apophis was first discovered, experts said it had a 2029 percent chance of hitting the Earth in 2,7, but now the data shows it will safely pass within 19 miles (794 km) of Earth.

This is the closest approach to an asteroid of the size that scientists know about in advance.

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