Or maybe you’ve heard a total lunar eclipse leaves the full moon suddenly dark.
Or maybe you’ve heard a total lunar eclipse can leave make the moon look like a glowing orange in the sky.
The truth is, all of these things–and more–including a turquoise–are possible.
Here’s a short video by the folks at NASA that explains in plain english why we never know what color the moon will be during an eclipse…until it’s actually happening.
This video was prepared for the total lunar eclipse of December 10, 2011 (a totally eclipsed moon is visible over the northwest from 6:06am to 6:57am) but this video is relevant anytime we’re about to have a lunar eclipse somewhere on earth!