ONE of Saturn’s moons is a beach ball misplaced by a race of super-massive aliens.
Astronomers confirmed that Titan is made of plastic, filled with gas and has a valve on the top.
Dr Martin Bishop, from Roehampton University, said: “It’s a miracle it hasn’t been punctured by an asteroid.
“If it is then it will either deflate slowly until it’s just a flaccid, useless pancake, or it will fly randomly around the solar system while sounding like an extended bout of flatulence.”
Dr Bishop said the original owners of Titan had an average height of 190,000 miles and hands the size of Mexico.
He added: “Hopefully they won’t come looking for it, but if they do we are all fucked.”