The chances of an asteroid striking Earth within the next decade has doubled in a matter of weeks, according to NASA astronomers.

NASA is monitoring a recently discovered asteroid called the 2024 YR4, which is around 150-300 feet wide and is the most hazardous space rock detected in more than 20 years. Astronomer and space scientist Dr.

NASA is training humanity’s most powerful telescope on a “city-killing” asteroid to determine whether or not we need to brace for deep impact.