资讯

Earth is perfectly safe from a menacing asteroid known as 2024 YR4 that is big enough to level a city, but the moon? Not so ...
The asteroid, about the size of a 10-story building, has a 4.3% chance of lunar impact, according to NASA's James Webb Space ...
New observations suggest that a "city-killer" asteroid has a slightly higher chance of hitting the Moon than our planet.
YR4, once the highest impact risk ever recorded, now poses no threat to Earth but has a slightly increased chance of striking ...
YR4 was one of the highest-risk asteroids identified in the last 25 years. There’s a 4.3 per cent chance it hits the moon.
Asteroid 2024 YR4, initially considered a potential threat to Earth, is now more likely to hit the moon in 2032. The asteroid, about the size of a 10-story building, has a 4.3% chance of lunar ...