(CNN) An unusual asteroid traveling near Earth is thought to be a chunk of the moon, but exactly how it ended up zooming through<a class="excerpt-read-more" href="https://wsvn.com/news/us-world/scientists-say-theyve-traced-the-origins-of-a-potentially-hazardous-near-earth-asteroid-to-the-far-side-of-the-moon/">Read More</a>