In physics, spacetime, also called the space-time continuum, is a mathematical model that fuses the three dimensions of space and the one dimension of time into a single four-dimensional continuum.

Dec 18, 2025 · space-time, in physical science, single concept that recognizes the union of space and time, first proposed by the mathematician Hermann Minkowski in 1908 as a way to reformulate Albert …

Aug 25, 2025 · Few ideas in modern science have reshaped our understanding of reality more profoundly than space-time—the interwoven fabric of space and time at the heart of Albert Einstein's …

May 20, 2021 · Space-time is the conceptual model that best explains how the universe works. (Image credit: Shutterstock) The fabric of space-time is a conceptual model combining the three dimensions …

Jul 31, 2025 · Space-time compression focuses on how the world seems smaller now that we have more access to it, not time in space. Space-time vs. Earth time depends on where you are in space. If …

May 24, 2025 · Albert Einstein, through his groundbreaking work on relativity, dramatically changed our understanding of space and time. The key insight he brought was that space and time are not …

May 28, 2025 · What is spacetime, and is time really all a matter of perspective? Find out in our beginner's guide to the complexities of time and space.

Aug 24, 2025 · Space-time is frequently described as the “ fabric of reality.” In some accounts, this fabric is referred to as a fixed, four-dimensional “ block universe ” — a complete map of all events,...

Jan 20, 2026 · spacetime (countable and uncountable, plural spacetimes) (uncountable, physics) The four-dimensional continuum of the three spatial dimensions plus time.

Sep 14, 2025 · Few ideas in modern science have changed how we understand reality as deeply as space-time, the intertwined union of space and time at the core of Albert Einstein’s theory of …