Video: News of Asteroid “City-Killer” Hitting Earth Causes Tension NASA has once again updated its assessment of asteroid 2024 YR4, and the news isn’t comforting. The probability of impact has climbed to 3.1%, making it the most dangerous asteroid ever recorded. This “city-killer” space rock now poses a higher risk than the infamous Apophis asteroid once did. https://thenationsmedia.com/news-of-asteroid-city-killer-hitting-earth-causes-tension/