An incident involving a strange glowing silt pond would go on to spark a mystery spanning four decades.
Researchers have been able to piece together clues about the environment by looking at old paintings.
A luminescent statue of the Virgin Mary has been attracting huge crowds of people on a daily basis.
A science team in South China achieved the feat by injecting the animals with the DNA of a jellyfish.
A strange luminescent creature watched by crowds of people at Bristol harbor has turned out to be a hoax.
Sasha Shaker used his iPad to record footage of a strange glowing sphere as it danced across the sky.
A lake in Puerto Rico that usually glows green has suddenly gone dark and nobody seems to know why.