Space-time

Space-time network. Illustration: depositphotos.com

Tiny black holes may form from space-time 'crystals'

Researchers have presented a mathematical formula for a theoretical process in which space-time organizes itself into a cyclical pattern. A small addition of energy could transform this unstable state into a tiny black hole.
Black hole. Illustration: depositphotos.com

Is the universe infinite? What does science really know about the shape of the universe?

Measurements of the cosmic microwave background radiation indicate that the observable universe is approximately flat, but scientists still do not know whether the entire universe is infinite, finite without an edge, or has a more complex topological structure.
Space-time. Illustration: depositphotos.com

Does space-time really exist?

Is time something that flows—or just an illusion? Examining space-time as a fixed or dynamic fabric reveals deeper questions about existence, change, and the true nature of reality.