NASA has officially confirmed that asteroid 2024 YR4, previously dubbed a 'city killer' due to its size, will not collide with the Moon in 2032. This announcement comes after the space agency initially estimated a 4.3 per cent chance of impact, but new observations have now refined the asteroid's orbit, leading to an 'all-clear' declaration.
Updated Predictions from Webb Telescope Data
Observations made by the Webb Space Telescope in February provided crucial data that allowed scientists to update their predictions. The new information indicates that the asteroid will miss the Moon by approximately 13,200 miles, or 21,200 kilometres, on 22 December 2032. This significant margin eliminates any threat of a lunar impact, providing reassurance to the global scientific community.
Background on Asteroid 2024 YR4
Discovered at the end of 2024, asteroid 2024 YR4 measures approximately 200 feet, or 60 meters, in diameter. Initially, it was considered a potential threat due to its trajectory, though NASA had already ruled out any collision with Earth within the next century last year. The asteroid's classification as a 'city killer' stemmed from its size, which could cause substantial damage if it were to strike a populated area, though this scenario has now been definitively dismissed.
The refinement of the asteroid's orbit highlights the importance of continuous monitoring and advanced telescopic technology in planetary defense. NASA's ongoing efforts to track near-Earth objects ensure that potential hazards are identified and assessed early, allowing for accurate predictions and public safety measures.
This update underscores the dynamic nature of asteroid tracking, where initial estimates can change with new data. The use of instruments like the Webb Space Telescope plays a critical role in enhancing our understanding of celestial bodies and mitigating risks from space-based threats.
