This month, sky watchers around the world will be treated to an astronomical astonishing display in the form of a blood wolf super moon.
The first lunar eclipse of the year will make the moon appear red in the night sky.
Best of all, it will be visible in the UK and other areas of the world.
Here is everything you need to know about the super wolf's blood moon, including how and when to see it.
When is the moon of the super-blood wolf?
The super wolf's moon moon will appear for about three hours on January 21.
From the UK, the best time to see it will be around 17:15 (Brasília time) – then prepare a strong and ready coffee!
Meanwhile, in the Americas and in northern and western Europe, the best time to see it will be soon after 02h30.
What is a super wolf moon of blood?
The super-moon of the blood wolf is a rare combination of two events – a total lunar eclipse and a super moon.
During a total lunar eclipse, the moon shines red (hence the "blood" in the name).
This happens when the Earth passes directly between the sun and the moon, casting a shadow over the moon.
NASA said, "A total lunar eclipse occurs when the moon and the sun are on exactly opposite sides of the Earth. Although the moon is in the shadow of the Earth, some sunlight reaches the moon.
"Sunlight passes through Earth's atmosphere, which causes the Earth's atmosphere to filter out most of the blue light. This makes the moon appear red to people on Earth. "
Meanwhile, a super moon occurs when a full moon occurs in or near perigee – its closing point to Earth.
NASA explained: "Full moons can occur at any point along the moon's elliptical path, but when the full moon occurs in or near the perigee, it appears slightly larger and brighter than a typical full moon. This is what the term "supermoon" refers to. "
How to see
For your best chance to see the super wolf blood, try going to an area with little light pollution – for example, in the field.
Leave early to let your eyes get accustomed to the darkness.
Remember to bring layers – it's likely to be cold!