Dubbed 2024 YR4, the asteroid was first spotted on December 27, 2024, by the El Sauce Observatory in Chile. Based on its brightness, astronomers estimate it is between 130 and 300 feet wide. "An ...
The UN has activated planetary defense protocols for the first time to better determine the orbit, size, and threat posed by 2024 YR4, a rock discovered on December 27 that has a 1.6% chance of ...
On 27 December last year, astronomers using the ATLAS survey telescope in Chile discovered a small asteroid moving away from Earth. Follow up observations have revealed that the asteroid, 2024 YR4, is ...