Conspiracists and UFO seekers have been claiming for years that a mysterious celestial body called Planet X or Nibiru was hidden away in our solar system. But the rejoice at "being right" soon turned to panic because they also believe Nibiru would one day pass Earth so closely the gravitational pull would start massive earthquakes and volcanic eruptions on our planet, spelling the end of all life.
Videos posted online at the end of last year even claimed Nibiru would pass us by the end of 2015 or by April 2016.
So news of the announcement over Planet Nine yesterday has only fuelled them further.
This week it emerged Planet Nine would be about 10 times bigger than the Earth and thought to be gaseous, if the scientists's calculations are true.
Scientists believe it traces a highly elongated orbit and takes between 10,000 and 20,000 years to make just one journey around the sun.
Planet Nine is, on average, about 20 times further from the sun than Neptune, which orbits at a distance of about 2.8billion miles.
Since the news the internet has been awash with claims saying Nibiru has been located.
The Nibiru Today YouTube channel posted a video entitled "Nibiru Planet X: Astronomers Prove Planet X exists" which had an intro CGI clip of a planet crashing into the Earth.
The channel posted: "The mythical Planet X is real and scientists are calling it Planet Nine."
Adrian Summerville, who watched the video, posted: "Nibiru is real but something's funny about the info they are giving us all of a sudden. Something else is going on."
Dakota RN asked: "Are we gonna die."
But many others rubbished the claims.
One poster said: "I knew the moment this was announced conspiracy theorists were going to start claiming it was Nibiru."
The conspiracy theory dubbed the Nibiru Cataclysm has been circulated since 1976.
Then, writer Zecharia Sitchin claimed that two ancient Middle Eastern cultures – the Babylonians and Sumerians – told of a giant planet – Nibiru – that orbited the Sun every 3,600 years.
He based this on a translation of Sumerian writing – one of the earliest systems of writing in the world – which is not recognised by other scholars.
Believers later linked this to Planet X – a hypothetical planet astronomers suggested could account for unexplained unusual changes in the orbits of Uranus and Neptune.
The far-fetched claims of a monster astral body – somehow missed by NASA and other astronomers – got an unexpected boost when NASA's Infrared Astronomical Satellite found signs of an "unknown object…possibly as large as the giant planet Jupiter and possibly so close to Earth that it would be part of this Solar System" in 1983.
News of Planet Nine is the first official recognition since that something big is out there.