Design a mesmerizing cosmic landscape where the infinite expanse of space comes alive with celestial wonders. Imagine vast galaxies spiraling like whirlpools of stars in rich, radiant colors—shimmering blues, fiery oranges, and ethereal purples. Giant planets hover majestically, their surfaces glowing with swirling storms and mysterious, luminous patterns. In the foreground, a glowing nebula stretches like a cosmic veil, its vibrant hues blending into the darkness, with tendrils of stardust reaching out. Tiny comets with blazing tails streak across the sky, while black holes swirl ominously, warping light around them. Include distant star systems, some barely visible as glowing specks, adding depth to the cosmic expanse. In the distance, an ancient, powerful supernova explosion sends out waves of light and energy, illuminating the surrounding galaxies. The scene should evoke wonder, mystery, and the boundless beauty of the universe, as if the viewer is glimpsing the secrets of space itself.