Apophis

The most serious near-miss, and the closest comparison with YR4, was an asteroid called Apophis which was first spotted in 2004 and measured 375 meters across, or around the size of a cruise ship.

But since Apophis, there have been huge advances in what is called planetary defence.

Yes, astronomers point to asteroid 99942 Apophis, 1,099 feet wide and first identified in 2004.

During early assessments of impact risk, Apophis reached a rating of Torino Scale 4, which is a scale for categorizing potential Earth impact events.

Upon gathering further observational data and assessment, scientists ruled out the impact probability for Apophis, for now, with a small chance of impact in 2068 declared unlikely.