Why asteroid 2024 YR4 is unlikely to hit Earth in 2032 and how scientists keep track

Scientists say the threat of a newly discovered asteroid has risen slightly in the past few weeks, as the world’s telescopes rush to track its course.

​Scientists say the threat of a newly discovered asteroid has risen slightly in the past few weeks, as the world’s telescopes rush to track its course.   Scientists say the threat of a newly discovered asteroid has risen slightly in the past few weeks, as the world’s telescopes rush to track its course.