Asteroid 2024 YR4 first appeared to humans on December 27, 2024, sparking alarm about its potential impact on Earth. However, further research revealed that it originated from the middle of the main asteroid belt between Mars and Jupiter. A gravitational interaction with Jupiter pushed it towards Earth.
The ‘city killer’ asteroid is classified as a dense S-type asteroid, composed primarily of solid rock. It measures 30-65 meters across and has a flattened shape, unlike most asteroids which are spherical. This unique shape may provide clues about its formation process.
Researchers used telescopes to study the asteroid’s characteristics, including its spin period, rotation direction, density, and shape. The findings suggest that S-type asteroids like 2024 YR4 could pose significant challenges for impact mitigation strategies.
The discovery of 2024 YR4 has implications for planetary defense, as it helps scientists assess the properties of other potentially hazardous asteroids and refine rapid-response observation techniques. Astronomers are now eager to study the asteroid’s future movements and potential interactions with the Moon.
Source: https://www.sciencealert.com/city-killer-asteroids-origin-traced-to-an-unexpected-part-of-the-solar-system