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Asteroid Bennu: 1 in 2,700 Collision Risk by 2182

2/6/2025

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Summary

Bennu's Collision Threat

The asteroid Bennu, a colossal 0.31 miles wide and weighing 74 million tons, poses a 1 in 2,700 risk of colliding with Earth by 2182. Such an impact could trigger catastrophic shockwaves, tsunamis, and a global winter, plunging temperatures by 7.2°F and jeopardizing food supplies. Yet, its iron-rich dust might offer a silver lining for ocean algae.

Summary

Asteroid 2024 YR4 Threat

Astronomers have discovered asteroid 2024 YR4, a sizable rock between 40-90 meters wide, with a concerning 1.6% chance of colliding with Earth on December 22, 2032. Currently classified as Level 3 on the Torino Impact Hazard Scale, its potential impact could lead to severe local damage. Scientists are diligently monitoring its path to better understand the risks.

History

Historical Context

Asteroid Bennu, discovered in 1999, poses a potential collision risk to Earth, echoing past concerns about asteroid impacts like the one that led to the extinction of the dinosaurs 66 million years ago. The Torino Impact Hazard Scale, developed in 1999, helps assess such threats. As scientists monitor Bennu, they also explore its resources, reflecting growing interest in asteroid mining for water and minerals.

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Bennu's Collision Threat

The asteroid Bennu, a colossal 0.31 miles wide and weighing 74 million tons, poses a 1 in 2,700 risk of colliding with Earth by 2182. Such an impact could trigger catastrophic shockwaves, tsunamis, and a global winter, plunging temperatures by 7.2°F and jeopardizing food supplies. Yet, its iron-rich dust might offer a silver lining for ocean algae.

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