The longest total lunar eclipse of the 21st century.

​​ The longest total lunar eclipse of the 21st century.

The total phase of the "blood moon" eclipse of July 27 will last 1 hour and 43 minutes, during which Earth's natural satellite will turn a spectacular red or ruddy-brown color.

From start to finish, the entire celestial event will last nearly 4 hours.A total lunar eclipse is visible from South America, Europe, Africa, Asia and Australia.