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 on a path that might lead to a collision with our planet on 22 December 2032. 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 on a path that might lead to a collision with our planet on 22 December 2032. Astronomy Planetary Sciences Phys.org – latest science and technology news stories