What is it about the moon that fascinates us? It's the most searched thing on the internet. I recall being riveted to the TV when the first man set foot on the lunar surface. Guess what! There's more fascination coming our way. CBS News reports, the longest lunar eclipse of the 21st century is days away (July 27th). First the good news. It will be fully visible for nearly 2 hours, according to NASA.. Now the bad news. You'll have to travel to South America, Africa, the Middle East, or Central Asia to see it.