
New simulations reveal that the infamous "city killer" asteroid 2024 YR4 could shower Earth with "bullet-like" debris if it hits the moon in seven years' time, potentially triggering an eye-catching meteor shower — and endangering the satellites that orbit our planet.
2024 YR4 is a potentially hazardous asteroid measuring roughly 200 feet (60 meters) across, making it large enough to wipe out a large urban area if it were to hit Earth head-on. It was first discovered in December 2024 but made headlines earlier this year when scientists first predicted that there was a chance it could smash into Earth on Dec. 22, 2032. The odds of a collision peaked at 3.1% in February, which was enough to prompt NASA to study it extensively. However, subsequent analysis revealed there is zero chance of it impacting our planet.