Alright, here's my submission. I'll admit, this was a very difficult project to do. I'm still not one hundred percent sure what the theme of Celestial Gardens is, but from what I can gather, it's space and the sky, isn't it? I very briefly considered doing some sort of attraction where Woody Woodpecker goes to outer space, but since Woody isn't a very popular character nowadays and he's had his status as the park mascot replaced by the Minions, I figured it probably go with something else. So, I present to you...
Wikipedia describes a planetarium as "a theatre built primarily for presenting educational and entertaining shows about astronomy and the night sky, or for training in celestial navigation". From the outside, the planetarium in Celestial Park looks like an ordinary building. It is not. Inside is the park's very first 3D show.
Stepping into the lobby, everything SEEMS normal enough. Banners depicting the planets hang from the ceiling. In glass cases lining the walls, there are rocks from each planet. Sitting atop one of the cases is a scale model of a Mars Rover. Calming music plays. If you don't want to stand, there are small benches scattered around the lobby. Eventually, the doors to the main theater open, allowing you to walk inside.
Once everyone has had a seat in the theater, the show begins. On the IMAX dome-shaped screen that spans over the guests is a map of the Milky Way. An astronomer (played by a cast member) gives us some exposition about the Solar System, setting up the plot of the show: this is going to be an educational show. But wait! Universal generally doesn't do educational shows! This isn't EPCOT, after all. Surely there's a thrill element in here somewhere.
Suddenly, the entire room rumbles and a flying saucer soars over the audience's heads. After it parks in the back of the theater, the hatch opens up to reveal a little martian with green skin, a bald head, and big black eyes. He introduces himself to the baffled astronomer as Phobos, and he's come all the way to Earth from Mars to tell us why his home planet is the best planet in the solar system. The astronomer protests that there is no "best" planet in the solar system, they're all equally good, but Phobos is insistent. He tells us some information about Mars - all of them actual facts about the planet - and reveals that the Martians of his planet had a very similar civilization to ancient Rome years ago. During this part of the show, chariots seem to leap off the screen and speed around the walls of the room.
Phobos is interrupted by the arrival of another spacecraft that looks like a snowmobile on wheels, its driver a yeti-esque creature clad in a heavy parka. This is Herschel, hailing from Uranus, which she mentions is the coolest (in more ways than one!) planet in the solar system. After all, Uranus is a great place to go snowboarding, skiing, and ice-skating. And who wouldn't love to live in a house made of ice? "This is completely inaccurate!" the astronomer claims. "Uranus is mostly composed of gas, not snow and ice!"
Giant snowflakes begin to fall in the theater as Herschel talks. But all of a sudden, the temperature rises and the snowflakes melt into water, getting the audience a bit wet. A fireball signals the arrival of Terra, a purple-skinned alien girl from Venus. Tipping her sunhat to the astronomer and holding a beach towel under her arm, she says that HER home planet is the best - on Venus, it's a 24/7 beach party! Images of Venusians playing volleyball, surfing, and having barbecues appear on the screen. Again, the astronomer calls this inaccurate, but acknowledges that Venus might have had water at some point.
Phobos, Herschel, and Terra start arguing over which of their planets is the best. As the frazzled astronomer tries to calm them down, a fish-like alien covered in blue scales swims through the air and gets everyone's attention. His name is Galle, hailing from Neptune, and he timidly says, if it's okay with everybody, that Neptune might be the best planet of all. Herschel is unconvinced, pointing out that all Neptune has going for it are "a lot of storms and heavy winds". Sure enough, the whole theater is suddenly caught in a Neptunian storm - it's like being in the eye of a tornado! Galle groans that this could be another Small Dark Spot. But someone shows up to tame the storm...
Titan, a genie-esque figure made entirely of gas, constantly changing form and zipping around the theater. He says that he's from Saturn and that there's a lot more to it than just the iconic rings. Since nothing on Saturn is solid - it's a gas planet, after all - everything is constantly changing and there's never a dull moment. To prove his point, he grabs the storm clouds and twists them into a balloon animal - which promptly pops, resulting in a blast of air in the audience's faces. Phobos still insists that Mars is the best.
"HEY!" a high-pitched voice calls out. Everyone looks around in confusion. "Down here!" the voice says, prompting the astronomer to get out a magnifying glass. The source of the voice is revealed to be Crater, a teeny-tiny alien with wings on his helmet and shoes from Mercury. He insists that even if Mercury is the smallest planet in the solar system, it's got a lot going for it. To prove his point, he takes us on a tour of the anthill-esque tunnels inside the planet's surface. The astronomer, again, expresses doubt that any of this is scientifically accurate.
The room shakes again as two giant boots crash through the ceiling. The boots belong to Amalthea, hailing from Jupiter, the planet where she claims everything is bigger and better. She shows us a comedic video of Jupiter's residents Paul Bunyan-ing it up. Jupiter, it seems, is covered with forests, and almost everyone is a lumberjack, chopping down trees to build colossal log cabins and taming blue ox-like aliens. "There are no trees on Juniper!" the astronomer complains. "Not one thing about this show has been factual! It's all a bunch of science fiction mumbo-jumbo!"
The aliens all start arguing again about which planet is the best, and the astronomer can only stand there slapping their forehead in exasperation. Eventually, the dispute is interrupted by what looks like a bobsled floating into the room. Riding the bobsled is a mountain goat-esque alien with huge horns, a small body, and a long beard. The alien's name is Otulp, and he's from Pluto (where he admits they aren't very creative when thinking of names), and he's got something to say. "All this arguing over which planet is the best... honestly, maybe they're ALL pretty great?" he suggests. "If you ask me, you should all just shut up and be happy that your planets haven't been demoted to 'dwarf planets' like mine has." The astronomer agrees - all planets are equally important. The other aliens seem to have finally gotten the point.
The show concludes with a huge production number, with each alien singing the praises of their planet before they all remind us that each and every planet - including Earth - is equally wonderful. Fireworks go off, snow falls again, chariots race, it's a big incredible sequence that'll leave the audience in awe. After the song, everyone heads back to their home planets, and the astronomer decides not to write any of the information they've learned about the planets down or share it with anybody because, hey, who'd believe it? The show ends, the exit doors open, please leave the theater in an orderly fashion and buy a t-shirt on your way out.