NASA Insignia
Imagine the Universe!

Floyd's big question

What is the real unified theory of physics that describes the true nature of space-time as well as explaining the physical forces?

Einstein spent much of his life trying to pull the subatomic and universal fields together into a single, simple theory, which has been called the Grand Unified Theory (no gravity involved) or the Theory of Everything (which includes gravity). A unified theory offers a more elegant explanation of data and may tell us what we should study in the future.