A research team studying bioluminescence came across this perplexing anomaly in the Gulf of Mexico.
The young French woman was found dead at an abandoned church in northern Italy's Aosta Valley a few days ago.
A new 8-part documentary series on Netflix aims to explore a multitude of famous unexplained mysteries.
A new investigation by multiple news outlets has linked the phenomenon to a Russian intelligence unit.
Forensic experts explain what we do know about MH370's disappearance and why its whereabouts remain so elusive.
The enormous archive contains countless books, documents and files pertaining to the unexplained.
The controversial image was recently picked up by news outlets after being shared on social media.
Scientists have conducted advanced tests on the brains of those afflicted with the enigmatic condition.
The disappearance of Kenny Veach still remains a topic of debate and intrigue almost 10 years on.
The grisly discovery was made by construction crews working at a building site in Narrumson Road, New Jersey.
Four years on from the appearance of several mysterious monoliths, another has suddenly shown up on a Welsh hill.
It has now been an entire decade since Malaysian Airlines flight MH370 vanished under mysterious circumstances.
The banging sounds were picked up during the search for the Titan submersible which went missing last year.
Exactly what happened to the famed aviator remains one of the world's most enduring mysteries.
A fishing crew has reportedly recovered what is thought to be the remains of another spy balloon in the waters off Alaska.
NORAD has been tracking an unknown high-altitude balloon that was first spotted on Friday.
A radio station in Jasper was silenced earlier this month when its radio tower mysteriously disappeared overnight.
A peculiar metallic sphere found by a family in Florida 50 years ago sparked claims that it could be an alien device.
We're willing to bet that there's at least one show on this list that you are not familiar with.
An undersea mapping firm has captured a sonar image that is thought to show the late aviator's plane.