Have you ever seen a strange light appear in the sky and wondered if it was an alien craft?
Now you can work out if someone else saw the same thing – or if the bizarre sighting was the product of your fevered imagination.
A website called UFO Stalker has collected together all the weird observations reported to the Mutual UFO Network (MUFON), an American organisation that investigates strange sightings in the sky.
Its figures reveal that a total of 83,715 sightings have been reported this year alone across the world, a 12 per cent increase on the number of sightings in 2016.
Last month in the UK, there were a total of seven UFO observations.
On 15 November, one person claimed to have seen a UFO over Aberdeen.
They said: ‘Standing at my kitchen window I noticed a very bright red and white light flashing every two seconds.
‘I instantly knew this was not a passenger plane or helicopter.
‘The object itself was travelling directly north. It just looked like a medium brightness star but had an intensely bright white and red light. The white light was stacked on top of the red light and they would pulse on and off every two seconds.’
In Thornaby, Yorkshire, another person spotted a mysterious object on November 8 and wrote: ‘I went out into my front garden for a cigarette with my husband and looked up at the clouds.
‘Above the houses across the street, I noticed a very bright, white, intermittent trail and when following the trail to the right noticed a small white glowing spot (orb?) moving in front of the clouds.
‘I told my husband to look at it but the trail had disappeared and he wasn’t able to see the orb before it disappeared; I’m not certain whether it went into the clouds or just disappeared.’
The person who saw the UFO did not confirm whether anything a little stronger than tobacco was placed in the cigarette ahead of this sighting.
The majority of UFO sightings were reported in the US, with 26 sightings taking place during November.
On November 20, one person was zooming through Nob Hill, Albuquerque, in their car when something suddenly appeared in the sky.
Their report said: ‘ I turned down a side street and saw a triangle shaped craft with lights that went up the side of it.
‘It was illuminated so it formed a V-shape. I stopped to pull over and look at it because I thought it was strange. Witnessed it for about 10 seconds before it was hidden behind a tree.
‘The airforce base is close by so I assumed it was a military aircraft but haven’t seen one like it before.
UFO experts claimed that the number of sightings has increased in recent years.
However, this could be blamed on the internet, which allows people to record their sightings but is also used to spread strange ideas and fake news.
Nigel Watson, author of the UFO Investigations Manual, told MailOnline: ‘UFO Stalker is a brilliant visual guide to the location of UFO sightings, and shows the sheer scale of this phenomena over the last few years.
‘The downside of such a map is the quality of the sightings in its database, these should be carefully filtered if anyone really wants to establish geomagnetic or other links with UFO activity.
‘Clusters of sightings might, for example, be caused by increased media activity in an area, or a bright meteor or other mundane phenomena could also trigger a wave of UFO sightings.
‘Nonetheless, this is a handy way of presenting UFO data and is very helpful in helping pin down the weird things seen in our skies.’