That's big enough to take out a city. However, it is possible that the asteroid is much larger. "In general, the brighter the asteroid, the larger it is, but this strongly depends on how ...

An asteroid ... city and shattering windows across larger regions. If the asteroid does head for Earth and is of a size that could cause devastation, a kinetic impactor spacecraft like NASA’s ...

A Chilean space telescope has captured striking images of YR4 2024, the “city-killer” asteroid that’s potentially on a collision course with Earth. “Only a few asteroids have been studied ...