Presumably she drifted through a wormhole or something to explain how she is still alive so far from her home time and space, or maybe she was flung out at relativistic speeds. In Dandy's universe, she drifted aboard Sputnik 2 until she, somehow, arrived on the junk planet in a distant galaxy. Launched into space by the Soviet space programme and recorded as dying on reentry, Laika was the first terrestrial animal ever to leave the Earth. Even without the Narrator spelling it out, of course she's Laika. It's Future History, Baby: So, PUP is Laika. It is (was) located in an "Andromeda-like galaxy." Only the Machinians' power is keeping it stable, and once they are dead, the planet collapses under its own gravitational force into a black hole. Drawn together under gravity and the influence of the Machinians. I Know This Planet, Baby: The planet Machinia, on which the episode is set, is comprised entirely from old space junk, bits of satellites and old appliances and so forth. proving once and for all this is the same universe as Cowboy Bebop. Presumably, the fridge drifted in space for thousands of years before being absorbed into the junk planet. This, in fact, marks the episode out as a direct sequel to the Cowboy Bebop episode "Toys in the Attic," an Alien pastiche in which the same fungoid alien attempts to infect the characters before being launched into dead space in the fridge. The blue mold: Some kind of alien organism that is discovered by Meow inside an old fridge on the junk planet. One suffers death by comb on Dandy's pompadour while the other is stepped on. The Le Flea brothers have been living on PUP's back and are probably the last surviving members of their species. The Machinians are depicted in pretty racist Native American cliches, going on about their sacred land and so forth.
QT's database identifies them as a Graviton and a Gravitino (actually hypothetical boson particles in the real world), beings long thought extinct who have the ability to manipulate machines and bring metal devices together under gravity. They are micro-humanoids with human heads and flexible, springy skeletons. The Machinians: Tiny, almost microscopic creatures who live like fleas on the backs of hairy creatures.
He has a free unrecorded alien app on his phone, which leads them to the junk planet. Meow actually discovers an unknown alien species on the planet, but accidentally eats it before he can help himself.
As a furry creature, Meow becomes the host for the two alien parasites that have been living on PUP all this time, which leads them onto the Aloha Oe. Meow actually speaks dog, and while he tries to use this to badmouth the pooch (it doesn't work, because Dandy's universal translator manages to unpick the doggie dialect), he's taken by her because she likes his hat. He initially takes against PUP, but secretly becomes very fond of her, and is upset when she dies. He's Not a Space Cat, Baby: He's a big licker. He uses the robotic version of the Little Aloha (seen back in episode four) to build a "rocket coffin" for the dog, to launch her back into space. Sadly, PUP is dying, and Dandy is genuinely heartbroken when she goes. He's pretty harsh on Meow here, even before he starts hating on PUP, and doesn't care much for the Betelguesian's feelings when he immediately invites the dog to join the Aloha Oe crew. All Dandy really needs to make his life that bit more worthwhile is a dog. He bonds with the dog quickly, and names her PUP - short for Precious Upsidedown-coconut Pie, inspired by an item on the BooBies menu. Initially he believes her to be an alien who just looks like a dog, but he doesn't stick to that hypothesis for long. He's Dandy, Baby: Dandy makes way to an uncharted planet in search of unregistered aliens, but all he finds is a single, lonely dog. Season One, Episode Eight - The Lonely Pooch Planet, Baby Has someone been reading Better Than Life? This time, they even end up on a garbage planet with a link to Earth. A slacker human, an anthropomorphised cat, a robot designed for cleaning - add a neurotic hologram and Space Dandy would practically be Red Dwarf.