Large asteroids odds of hitting Earth went up. But not why you think.

It's certain that recently discovered asteroid 2024 YR4 will swing close to Earth in 2032. The chances of an impact remain low — but with relatively limited observations so far, the odds are in flux. On Jan. 31, the collision impact probability was 1.4 percent. As of Feb. 7, NASA reports it's 2.3 percent, which also means a 97.7 percent chance of missing our humble blue world. But don't be surprised if that number climbs higher: It's normal for the impact odds to increase before falling or