Blood-red "supermoon"
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How to watch a Lunar eclipse and see a red supermoon

27 September 2015 Last updated at 09:12 BST

For the first time in more than 30 years, you could see a red supermoon and a lunar eclipse.

The earth will be positioned in a straight line between the Moon and the Sun, blotting out the sunlight that normally makes our moon glow whitish-yellow.

But some light will creep around Earth's edges and be filtered through its atmosphere, casting an eerie red light that creates a so called "blood moon".

It's still 222 thousand miles away, but this full moon will look bigger and brighter than usual.

Space agency NASA says the last time it happened was in 1982 and the next will not be until 2033.

It's only happened five times since 1900.

Astronomy expert Tim O' Brien has got some tips to make the most of the experience.