Hey, it's Alan, and I just wanted to let you know that you can now listen to the ongoing

history of new music early and ad-free on Amazon music, included with Prime.

There are so many things in the universe that we just can't explain.

Scientists, law enforcement, researchers, internet detectives, they continue to come up empty

when it comes to certain things.

The fate of Amelia Earhart is a good one. On July 2nd, 1937, she took off on the next leg of her

attempt to fly around the world, and then she just disappeared. There are all kinds of stories about

what happened or may have happened. Search missions have

used sonar, aerial surveillance, and underwater drones around Howland Island in the Pacific,

her last known location. But so far, nothing. Who was Jack the Ripper? Again, dozens of theories

and possible suspects. It might have been a part-time school teacher named Montague John

Druitt, or maybe it was Aaron Cosminsky, a local barber. Even Prince Albert Victor,

the grandson of Queen Victoria, is a suspect. Ripperologists, and yes, that is a real term,

are split and frankly have no idea what happened beginning in 1888. If you want something more

current, there's the wow signal, a 72 second radio burst in 1977 that some believe was a radio

transmission from extraterrestrials. Maybe, maybe not. However, there are some things that can be explained, or at least we can come close to it.

Scientists are now pretty sure where the building materials for Stonehenge came from,

even if there are so many other things that they haven't cracked yet.

The fate of the Franklin expedition in the high Canadian Arctic.

After about 160 years, wreckage was finally found.

The infamous Tunguska explosion over Siberia in 1908 that flattened 2100 square kilometers of

forest. It's been proven that this was a meteor, more than 50 meters wide, that exploded at a

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