Cosmo was thrilled as he floated through the Stardust Galaxy on his mission. He loved collecting space rocks and spotting shooting stars. But there was one thing Cosmo always brought along - his favorite toy, a small plush star named Twinkle. Cosmo believed Twinkle brought him good luck.

One day, while exploring a comet's tail, a burst of stardust twirled Cosmo around. Twinkle slipped from his grip and drifted away. Cosmo was determined to find his toy.

He began his search, first climbing the Asteroid Playground. Each step on the bouncy asteroids made him giggle, but no Twinkle.

Next, Cosmo soared through the Rainbow Nebula, its vibrant colors swirling all around. He marveled at the beauty but still couldn't see Twinkle.

Finally, he explored the Glimmering Planet. It sparkled like a jewel, and Cosmo enjoyed bouncing from spot to spot, yet Twinkle was nowhere to be found.

Though Cosmo felt a little sad, he realized he had discovered amazing new places and grown braver. He learned that treasures, like memories and adventures, make the journey special.