15 小时之前 · The asteroid came closest to Earth on Christmas Day — passing within roughly 500,000 miles (800,000 kilometers) of Earth, about twice the distance of the moon. It was discovered two days later. Chodas said scientists are poring over sky surveys from 2016, when predictions show the asteroid also ventured close.

2 天之前 · How likely is it to hit? When IAWN issued its notification on Jan. 29, it reported a 1.3% chance of 2024 YR4 impacting Earth in 2032, based on data from the NASA JPL Center for NEO Studies (CNEOS ...

1 天前 · An illustration of the orbital parameters of the Earth, the moon and asteroid 2025 CF roughly around the time of closest approach. ... Scientists have estimated that, were it to hit Earth, 2024 ...

Yet an asteroid some 130 to 300 feet across can be, depending on its composition, regionally devastating. The asteroid that hit Arizona 50,000 years ago and created the 600-foot-deep "Meteor ...

6 天之前 · The asteroid came closest to Earth on Christmas Day — passing within roughly 500,000 miles (800,000 kilometers) of Earth, about twice the distance of the moon. It was discovered two days later. Chodas said scientists are poring over sky surveys from 2016, when predictions show the asteroid also ventured close.

4 天之前 · An asteroid first spotted in December has a 1.2% chance of hitting Earth in 2032. Scientists are tracking the space rock to learn more about its size and trajectory.

2025年1月28日 · 'Planet killer' asteroid found hiding in sun's glare may one day hit Earth "Odds have slightly increased to 1 in 83," Catalina Sky Survey engineer and asteroid hunter David Rankin wrote on BlueSky.

2024年12月20日 · Apophis is about 1,100 feet (340 meters) in width. It’s expected to safely pass close to Earth – within 19,794 miles (31,860 kilometers) from our planet’s surface – on April 13, 2029. This will be the closest approach to Earth by an asteroid of this size that scientists have known about in advance.