Competing theories of
existence.
Inflating oceans. Cyclic bounces. Literal nothing. Higher-dimensional membranes.
Read side-by-side. Cited to primary sources. Visualised in 3D.
Cosmos Explorer is an interactive guide to the competing theories of how the universe works. Different accounts of how the universe began, what dark energy is, what happens inside a black hole. The field has its own vocabulary and the theories pile up quickly, this site is built to make them legible.
Each theory is presented in plain language first, with the primary sources, the open objections, and a 3D scene that shows what it claims. For readers who already have some interest in cosmology and want to see the alternatives laid out side by side, without needing a physics degree to follow along.
Phase 1 is live: content, references, and navigation. Cinematic 3D scenes per family are in development.
How this site is organized
Cosmology doesn't have one answer to most questions, it has families of answers. This site organizes them the way the field actually argues, by question, by family, by specific variant.
Pick a chapter to start, or jump straight to a variant from the sidebar.
Cosmos Explorer is a solo hobby project. If you find it useful, you can support it here.