AVID sky watchers will be graced with a sight not seen for tens of thousands of years this evening.
Known as C/2022 E3 within scientific circles, the comet is unique with an impressive green glow.
And you might just catch a glimpse of it from the UK and the US - if the conditions are rightWhat is the green comet?
The comet, which was discovered by researchers in March last year, is heading northbound towards the Corona Borealis constellation.
It only orbits the sun once every 50,000 years or so, according to scientists.
But it is about to make its closest pass by Earth tonight, according to projections by scientists.
Are there illegal baby names? Surprising monikers that are BANNED in other countries, from Sarah to ThomasAs it hurtles between between the orbits of Earth and Mars, the comet will come within around 45million kilometres of our planet, travelling at a projected 128,500mph.
The last time this comet passed Earth was when the planet was in the Stone Age.
It will be the first time modern humans have been able to gaze upon the glowing green orb.
When and how can I see the green comet?
It will be at its closest point to Earth tonight, which will make it visible to the naked eye.
But only those in the Northern Hemisphere, including the UK and the US, will be able to witness it.
As it approaches the North Star, called Polaris, this evening, it will be visible with binoculars or a telescope.
Polaris is located on the tail end of the Little Dipper constellation.
Those planning on viewing the rare phenomenon are recommended to try and view the comet away from any sources of light pollution.
To do so, it is recommended to adjust your vision to darkness beforehand, which can take up to 30 minutes.
It is important that during this time you do not look at any light sources, including a mobile phone.
All about Rachel Nickell who was murdered in front of her son Alex HanscombeThere are many stargazing apps that will help you locate the comet such as SkyView Lite, SkySafari and Sky Map.
But do remember to do this before you try to adjust your vision to darkness.
Between now and the point where it is closest to our planet, it is recommended you check weather forecasts for the best time to view the comet.
However, star gazers should be reminded that the brightness of all comets is unpredictable.
Scientists expect the comet to pull away from Earth and zoom back into deep space after making its closest swoop towards our planet tonight.
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