1. The Oakville Blobs

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In 1994 clear, jellyfish like blobs, literally rained from the sky onto a farm in Oakville in the USA. They were only the size of a grain of rice but the weirdest part is scientists found out they USED TO BE ALIVE. Yep, under a microscope they appeared to contain human white blood cells (but this was never 100% proven).
Still to this day no one knows what caused it but theories range from the US Navy accidentally blowing up a school of jellyfish so big it rained, to an aeroplane errโฆ getting rid of itโs โwasteโ. Some think all the locals were in on it and itโs an elaborate hoax!
2. The WOW! Signal

Image: Wired
In 1977 during a Search for Extraterrestrial Intelligence (SETI) found the mysterious Wow! Signal. The eerie radio signal was super, super strong and came from the deepest areas of space. But it only lasted 72 hours and has legit never been heard again.
Peeps deciphered the โmessageโ and it spelt out โWOW!โ. Scientists believe that the length and patterns of the signal, may point to extraterrestrial origins AKA aliens!
3. The Voynich Manuscript

Image: Voynich.Nu
Dating back to the early 15th century, the Voynich manuscript is a book with illustrations thatโs handwritten in a language NO ONE has ever heard or seen before (or since!). Named after Wilfrid Voynich, who bought it to light in 1912, heaps of cryptographers (people who study communication and language) have looked at it but havenโt been able to crack the code!
All they know (thanks to the pictures) is that the book is divided into six parts and theyโre all scientific in nature, leading many to think itโs a medical book. BUT the weirdest part is all the drawings of plants donโt resemble ANY known species of trees, flowers or grass. SAY WHAT?!
4. Kryptos

Image: Wired
Kryptos is the name of a sculpture outside the CIA headquarters (where we know all the biggest mysteries must be) that was made by artist, Jim Sanborn. The work shows four encrypted messages.
Sounds simple right? WRONG! Only three of those codes gave ever been solved and the final one cannot be solved by anyone. Seriously, experts and random people have tried but no one knows what it says!
5. The Nazca Lines

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We know what the pyramids were built for, but this ancient mystery has no rhyme or reason! The geoglyphs of horses, plants and made-up beings in Nazca, Peru have baffled people for centuries as they cover an incredible 450km, are HUGE (like weโre talking a few kilometres long) and only visible from the air above.
Scientists have never figured out why or how they were created (since you couldnโt get in the air to see the whole things before planes were invented and they came WAY before that). Are they just pretty pictures you can only see from the clouds? Or were they made by aliens?!
6. Atlantis

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The lost city of Atlantis has captured peopleโs imaginations for years (and been turned into a cute Disney movie!). Originally thought to be a myth, ancient writings from the 4th century BC (!) reference the lost city and how very real it once was.
The Greek philosopher Plato heard about the city that got swallowed by the sea and said: โThrough violent earthquakes and floods, in a single day and night of misfortune โฆ [the whole race] โฆ was swallowed up by the Earth and the island of Atlantis โฆ disappeared into the depths of the sea.โ
Since it was a pretty huge place and it canโt just disappear without a trace, divers and archaeologists have been searching for the sunken city and found some possible places it might have once been, but weโll probably never know where it went!
Which mystery do you think is craziest? Let us know in the comments!
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