That's No Moon... Well, Actually, Yeah It Is

So there's a picture you don't see every day. Clearly, Vader's forces were not at all happy about the lunar eclipse.  I know, it really does look like the Moon was shooting out a laser at a passing ship, but that's an illusion: in fact, that laser is hitting the Moon, and it was sent from Earth. While you and I were busy watching the total lunar eclipse on Monday, a bunch of astronomers were zapping it with high-powered lasers. They do this every now and again to find to exactly how far away th...