1 天前 · The asteroid, dubbed 2024 YR4, was detected by NASA's Asteroid Terrestrial-impact Last Alert System on Dec. 27, 2024. According to researchers , it has about a 1-in-83 chance …

15 小时之前 · The asteroid, which is estimated to be about 130 to 300 feet wide, caught astronomers’ attention when it rose on the NASA automated Sentry risk list on Dec. 31, 2024. …

2 天之前 · A newly discovered asteroid, designated 2024 YR4, has a 1-in-83 chance of striking Earth in December of 2032. The asteroid is estimated to be 196 feet (60 meters) wide, and it is …

10 小时之前 · First spotted last month by a telescope in Chile, the near-Earth asteroid — designated 2024 YR4 — is estimated to be 130 to 330 feet (40 to 100 meters) across. …

8 小时之前 · A more accurate estimate could be made using radar, but that won’t be possible until the asteroid makes another close, but perfectly safe, pass by Earth on Dec. 17, 2028.

10 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 …

2025年1月22日 · The near-Earth object was likely ejected into space after an impact thousands of years ago. Now it could contribute new insights to asteroid and lunar science. The small near …

Explore the 3D world of Asteroids, Comets and NEOs. Learn about past and future missions, tracking and predicting orbits, and close approaches to Earth.

2 天之前 · The dashboard displays the next five Earth approaches to within 4.6 million miles (7.5 million kilometers or 19.5 times the distance to the moon); an object larger than about 150 …

2024年12月20日 · When Apophis was discovered in 2004, it appeared the asteroid could potentially impact Earth in the coming decades. Astronomers closely tracked the asteroid, and …