Theorists believe a mysterious planet already hidden in the Solar System will collide with Earth, killing everyone and devastating the planet, sometime this Saturday.
The bizarre claim has been put forward by a number of conspiracy fans, most notably David Meade.
He has tied the disaster to a number of Biblical prophecies and passages, including Revelation 12:1.
This passage reads: “A great sign appeared in heaven; a woman clothed with the sun with the moon under her feet and a crown of 12 stars on her head.
“And being with child, she cried out in her travail and was in anguish of delivery.”
Mr Meade claims the “sign in the sky” refers to the stunning eclipse experienced last month.
He explained: “The great sign of The Woman as described in revelation 12:1-2 forms and lasts for only a few hours. According to computer generated astronomical models, this sign has never before occurred in human history.
“It will occur once on September 23, 2017. It will never occur again. When it occurs, it places the Earth immediately before the time of the Sixth Seal of Revelation.
“During this time frame on September 23, 2017, the moon appears under the feet of the Constellation Virgo. The Sun appears to precisely clothe Virgo.”
Theorists also claim natural disaster signal the approach of Planet X, as the huge planetary body would interfere with the Earth.
They say the high number of serious hurricanes to have hit the Caribbean so early in the season, plus the large number of earthquakes striking across the globe, prove disaster is near.
However, the scientific community has dismissed claims Nibiru is a legitimate concern, claiming it is merely a result of overactive imaginations.
And this week a former investigator for the British Ministry of Defence (MoD) has spoken out about the alleged threat the ‘Planet X system’ poses to Earth.
Nick Pope dismissed the claims but said there was a darker side to the conspiracy theory and it could even lead to avoidable deaths.
He said: “I’m disappointed but not surprised at some of the end of the world predictions currently doing the rounds.
“Nibiru doesn’t exist. The world won’t end on 23 September. All that’s happening is that a hoax is being perpetuated in the name of evangelical Christianity.
“There’s absolutely no hard science underpinning these latest claims – it’s just the same old doomsday nonsense that we’ve seen time and time again, over the years.
“On one level it’s almost comical, but there’s a dark side to this. There are a lot of people out there who believe this sort of thing – conspiracy theorists, the young and impressionable, the mentally ill, and maybe others too.
“The worst case scenario is that vulnerable people might be pushed towards suicide if they think the world’s going to end anyway, in a few days’ time.