What is the estimated size of asteroid 2024 YR4?

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Asteroid 2024 YR4's Estimated Size

The newly detected asteroid, designated 2024 YR4, is estimated to be between 40 and 90 meters wide. This size range is comparable to that of a football field.
Discovery and Initial Assessment

Asteroid 2024 YR4 was first identified on December 27, 2024, by the El Sauce Observatory located in Chile. Following its initial observation, astronomers used its brightness to determine its approximate dimensions. By New Year's Eve, the object had been flagged as a matter of concern for NASA's acting planetary defence officer, Kelly Fast.
Potential Impact and Threat Level

While scientists are closely monitoring the asteroid, they are not yet in a state of panic. The asteroid carries a greater than one percent chance of colliding with Earth in approximately eight years, specifically on December 22, 2032. If an impact were to occur, it could result in devastation on a city-wide scale, contingent upon the specific location of the strike.
Comparison to Previous Events

The destructive potential of 2024 YR4 places it in the "city killer" category, a significant threat, though not on the scale of the asteroid impact that led to the extinction of the dinosaurs 66 million years ago. A more relevant comparison is the 1908 Tunguska Event, where an object estimated to be between 30 and 50 meters wide exploded over Siberia, flattening an area of 2,000 square kilometers. Experts anticipate that 2024 YR4 would likely detonate in the atmosphere rather than create a ground crater.

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What is the estimated size of asteroid 2024 YR4?

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