Grumpy Cat is an omnipotent entity that lives in Andromeda Galaxy. It has destroyed many planets and stars including VY Canis Majoris. It is well known for its grumpy facial expression and awesomeness.
Nobody knows the Grumpy Cat's history. All we know is that it was first discovered by Galileo Galilei when studying the universe using with his thingy. The Grumpy Cat was believed to be a hoax until 1912. Albert Einstein said that Grumpy Cat is a real creature. Einstein was the smartest guy around 1900s so people believed at him because people were stupid back then and they want to learn something even if they're brains can't learn anything.
When Russians launched the first manmade sattelite Sputnik 1, it received a radio signal 150,000 light years away Earth. The radio signal was believed to be Grumpy Cat's flatulence that can travel at fast lightspeed.