The Synthesis of "space-time"

Discover spacetime, the four-dimensional fabric of the universe that combines space and time. Learn how gravity is a curve in this cosmic fabric.

Explore Einstein's theory of relativity. Learn how space, time, and gravity are linked and how E=mc² changed our understanding of the universe.

Discover Einstein's theory of special relativity. Learn how it reshaped our understanding of space, time, and energy with concepts like time dilation.

Explore Einstein's theory of general relativity, which describes gravity not as a force, but as the curvature of spacetime by mass and energy.

Discover gravity, the fundamental force that shapes our universe, from falling apples to the orbits of planets. Learn how it holds everything together.

Discover time dilation, a key concept of Einstein's relativity showing how speed and gravity can actually change the flow of time.

# Top 7 Amazing Uses of the Theory of Relativity Albert Einstein's Theory of Relativity, first with Special Relativity in 1905 and then expanded with...

Explore wormholes, the theoretical tunnels through spacetime. Could these cosmic shortcuts predicted by general relativity make interstellar travel a reality?

Discover gravitational waves, the invisible ripples in spacetime predicted by Einstein. Learn how they are detected and what they reveal about the cosmos.

Explore the cosmos—the universe in its entirety. Learn about its origins, structure, and the science of cosmology that seeks to understand it all.