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in 1957 the Soviet Union launched Sputnik 1.

It was the first satellite in Earth's orbit.

Or was it?

For over 100 years, an object has been seen, heard, and photographed by people all around the world.

This object became known as the Black Knight satellite.

The signals coming from the Black Knight satellite have been decoded, and if the translation is correct, it's been watching us for

13,000 years. Let's find out why. nicha tesla was born in the Austrian Empire in the area of modern day Croatia.

He spent his teens and 20s teaching himself engineering and physics, then moved to the United States.

In New York he worked for Thomas Edison, but the two had a falling out, which led Nikola

Tesla to go out on his own.

He found investors and began focusing on his own projects and research,

and it worked better than he ever could have imagined.

Tesla was already a well-known inventor and public speaker when he set up a lab in Colorado Springs.

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