The city-killer asteroid's Moon impact risk has almost more than doubled, according to new NASA reports. Here's what we know.

NASA says the chances of an asteroid dubbed ‘2024 YR4’ hitting the lunar surface have doubled since February. The odds of an asteroid recently discovered by scientists hitting the Moon are increasing, and the prospect has astronomers excited instead of alarmed.

NASA said that an asteroid previously believed to be destined for Earth is now more likely to make impact with the moon.