This image shows Webb’s recent observation of the asteroid 2024 YR4 using both its NIRCam (Near-Infrared Camera) and MIRI (Mid-Infrared Instrument). Data from NIRCam shows reflected light, while the MIRI observations show thermal light. Learn about the latest estimates and news on asteroid 2024 YR4 , which has a very low impact probability of 0.001% on 22 December 2032. See how ESA and other agencies are monitoring and studying this near-Earth object. This Giant Asteroid Heading Towards Earth Is Top On NASA-ESA Risk List — All About 2024 YR4 NASA and ESA are monitoring asteroid 2024 YR4 , with an estimated size of up to 328 feet and a 1.2% chance of impacting Earth. 2024 YR4 is an asteroid with an estimated diameter of 53 to 67 metres (174 to 220 ft) [7] that is classified as an Apollo-type (Earth-crossing) near-Earth object.
