Asteroid headed towards Earth might smash into the Moon, scientists say - Nasa expects chances of Earth collision to be revised down in future estimates

NASA is making emergency preparations to deal with a ‘city-killing’ asteroid after the odds of it smashing into Earth continue to rise. Astronomers are keeping a close eye on Asteroid 2024 YR4, which currently has a 2.

Scientists say they expect the asteroid's future trajectory and impact probability to change as astronomers collect and analyze more data.