The Paul Bunyan Of Space

Of all the tall tales told by space mariners, perhaps there's none taller than John Jet, the giant spaceman.
They say he was just an ordinary sized space pilot until the shield on his space freighter was damaged in a meteor storm and cosmic rays leaked into his cabin, making he and his space suit grow to an extraordinary size.
After that there wasn't a freighter big enough to hold him and so he took to riding upon the back of a comet called Blazer and would drink up drums of rocket fuel like they were cans of Astro-beer.
One time, they say a fleet of alien ships came to attack the space colony of Alpha 6 and, it being a  mining colony, it couldn't defend itself but John Jet, because of his gigantic ears heard the colonies distress signal and, picking up asteroids from the cuiper belt he hurled them at the alien spaceships, smashing each of them to pieces until, giving up hope, those slimy space creatures turned and fled.
Another time, a black hole opened up near to a mining colony and was going to suck it up whole but John Jet reached deep into the black hole with his arm that was a light year long and pulled out the giant space mole that had dug the black hole.
Ofcourse the space mole was a fearsome critter and nearly tore John Jets suit to shreds with its claws but, they say, he borrowed the ring from around Uranus and put it over the moles neck like a collar, then he tied it up with a chain made of stars and swinging the mole round and round, used what Astrophysicists call centrigual force to hurl that space mole so far out that it hit the big wall that surrounds the edge of the universe.
Another time they say, John got into a fight with the constellation of Taurus the bull that went mad, seeing Johns bright red spacesuit but, fortunately, John saw the constellation of the plough and, grabbing hold of the plough, he charged against the bull with it knocking it out.
Ofcourse John wasn't always fighting. They say he had a girl on one of the colonies called Stella Starr and that, grabbing hold of a supernova, he crushed it down so small that it became a diamond that glowed like a star that he put upon a wedding ring for her.
And when he wasn't wooing Stellar Starr, they say, he was playing his giant banjo that was strung with strands of Berenice's hair. Ofcourse some say that this story can't be true because there is no sound in space so no one could hear John's banjo but none the less, it was this very banjo that helped John defeat the Space Siren; the singing woman whose bewitching voice often lured star-mariners to crash into asteroids.
When John started plucking on his banjo, it was the Siren that became bewitched because she couldn't stop dancing and, while she was dancing, she fell down into a crater of the Moon and was never seen again.
No one really knows what happened to John in the end but there are some who say he set off on a long, perilous journey to pick the silver rose that grows at the end of the universe, as a present for Stellar Star and that someday, perhaps, riding upon his comet, he'll come home again.