Apr 10, 2025
NASA discovers Building-Sized asteroid 2024 YR4- NASA's James Webb space
Express Web DeskThis led NASA and the international community to make urgent observations. Further data analysis decreased the collision's risk to almost zero by the end of February.
Source: AI
The asteroid is the tiniest object Webb has ever examined, with a diameter of around 60 meters, or the equivalent of a 15-story structure.
Source: AI
But YR4's size isn't the only thing that makes it genuinely intriguing. Unexpected features were discovered by Webb's NIRCam and MIRI observations.
Source: AI
The rapid heating and cooling of 2024 YR4, which differs from that of larger asteroids, was one of the most remarkable discoveries.
Source: AI
The surface of an asteroid is dominated by coarse, fist-sized rocks due to its fast rotation, creating a unique environment not found in asteroids of this size.
Source: AI
2024 YR4's analysis may influence future space risks assessment, as more sensitive search methods increase near-Earth object detections.
Source: AI
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