Space is the largest possible subject — billions of galaxies, each with billions of stars, each with its own planets, moons, and physical strangeness. The Space category turns the famous questions ("how big is the universe?", "what is a black hole?", "are we alone?") and the surprising ones ("why is Venus hotter than Mercury?", "what does a neutron star weigh?") into proper short articles built around a single trivia prompt. Each entry opens with a multiple-choice question and then walks you through the answer: the physics, the history of the discovery, the scientists involved, and what is still unknown. We cover the solar system (planets, moons, asteroids, comets), stars and stellar evolution, galaxies and the cosmic web, plus the cutting edge — exoplanets, dark matter, gravitational waves, the search for life. No jargon without explanation, no glossing over the hard parts. If looking up at the night sky has ever made you feel small in a good way, the Space hub is the long-form version of that feeling.