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Villagers were perplexed by the colourful anomaly that turned the sky an iridescent pinky-purple in the town of Tunapuna.
The weather formation appears to be motionless between the clouds and occasionally disappears.
Footage of the floating hue appeared online as witnesses captured it in awe.
The phenomena has left thousands guessing after the video was posted to a popular conspiracy Reddit forum.
Superstitious internet users have said the mass could be the "beginning of the end of the world" while others branded it "heaven on earth."
Others said the unusual light looks as though it is a "volcano in the sky."
One perplexed user said: "This is beautiful... so beautiful.. but so very very frightening."
While a third simply concluded: "Must be aliens."
It is not exactly clear what the mass is, but it could be an example of cloud iridescence.
Cloud iridescence is an optical phenomenon used by small water droplets or ice crystals - in close proximity to the sun or moon - scattering light.
Reports of strange-looking clouds are few and far between and last month a strange cloud seen over Costa Rica was called a "sign on God."
Hundreds of beachgoers in Rio de Janeiro ran in terror after spotting an apocalyptic looking roll cloud.
According to witnesses, the chilling sight caused beachgoers to rush to the safety of their cars after fearing a heavy downfall and major storm was imminent.
Jorge Ricardo, 43, explained that the massive phenomenon "shocked everyone".
"When it started to get thicker, denser and darker it caught everyone's attention and quite a few people became worried and ran off the beach," he said.
"I had only 10% of battery left on my phone so I recorded one long shot to try to capture the extent of the unusual sight."
Comment: The growing list of phenomena resulting from our changing atmosphere: