The longest total lunar eclipse of the 21st century will take place this week, on Thursday, June 26 into Friday, June 27.
Incredibly, the Moon was entirely in Earth's shadow (totality), turning it a dark blood red, for a full 1 hour and 43 minutes.
For about half the world, the moon was partly or fully in Earth´s shadow from 1714 to 2328 GMT - six hours and 14 minutes in all.
Bad news, though, for skygazers in Canada, the USA and Greenland - we won't be able to see a thing.
In addition, the event will also be visible in parts of South-America, parts of Europe, Africa, Asia, Australia.
When is the next lunar eclipse? This means it will be very bright - even brighter than Jupiter.
The month of July is going to offer a good spectacle in the night sky.
Scientists call this kind of moon a "blood moon".
How often does a blood moon occur?
Unlike a solar eclipse, people can look at a lunar eclipse directly with their own eyes.
As per Christian belief, the blood moon is said to signify the second arrival of Jesus Christ, as stated in Joel 2:31: "The sun shall be turned into darkness, and the moon into blood, before the great and awful day of the Lord come".
The phenomenon occurs when the moon and the sun are at opposite sides of the Earth.
AUSTRALIA: In Sydney, crowds gathered to watch the Moon turn red above the city's distinctive skyline.
Can astronomers learn anything from these events?
By observing the Moon with infrared cameras, such as the one on NASA's Lunar Reconnaissance Orbiter, scientists get a chance to see what happens when the surface of the Moon cools quickly.
"They'll see it at the same time, beginning at the same moment". As a European Southern Observatory photo ambassador, a member of The World At Night and the official astrophotographer of the Dark Sky Alqueva Reserve, he specializes in astronomical skyscapes that connect Earth and the night sky.