Earth’s recent ‘mini-moon’ may be an actual piece of the moon, astronomers say

An asteroid that orbited near Earth for a few months as a mini-moon may be a chunk of the moon that was blasted off by an impact thousands of years ago.

​ An asteroid that orbited near Earth for a few months as a mini-moon may be a chunk of the moon that was blasted off by an impact thousands of years ago. Read More Breaking News, Latest News and Videos | CNN