Bruce Betts, chief scientist of The Planetary Society, told AFP that 2024 YR4 could be a "city killer" if it hits Earth ... asteroid has a 2.4 percent chance of hitting Earth, said in a statement ...

NASA announced Monday that the asteroid, named 2024 YR 4, no longer poses a “significant threat” to Earth in 2032 or beyond. Need a break? Play the USA TODAY Daily Crossword Puzzle.