Stephen Hawking's groundbreaking book, A Brief History of Time, draws a clear picture of what space and time are, how the general theory of relativity redefined them, and why the universe is expanding.

Humans have always tried to understand the nature of the universe. But few have come as close as Stephen Hawking.

Hawking is widely recognized as the most brilliant theoretical physicist of our time for his groundbreaking research in gravitational singularity theorems.

Hawking served as a professor of mathematics at the University of Cambridge as well as the director of research at its Centre for Theoretical Cosmology until his death in 2018.

In addition to his research, Hawking wrote countless books such as The Universe in a Nutshell and Brief Answers to the Big Questions that brought complex topics to popular audiences.

A Brief History of Time explains the nature of space and time, cosmic expansion, and black holes, while questioning the possible beginning and end of the universe.