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 …

Sep 14, 2025 · Is time something that flows — or just an illusion? Exploring space-time as either a fixed “block universe” or a dynamic fabric reveals deeper mysteries about existence, change, …

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 …

Sep 26, 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 …

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 …

Gravity feels strongest where spacetime is most curved, and it vanishes where spacetime is flat. This is the core of Einstein's theory of general relativity, which is often summed up in words as …

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 …

In physics, spacetime is any mathematical model that combines space and time into a single continuum. It is a mathematical concept used to refer to all points of space and time and their …

Feb 1, 2022 · Specifically, spacetime might emerge from the materials we usually think of as living in the universe—matter and energy itself.