Australasian Science: Australia's authority on science since 1938

How Was the Universe Born?

The universe in an hourglass

Image: iStockphoto

By Geraint Lewis

Modern cosmology tells us that the universe as we know it arose 13.7 billion years ago in the fiery birth of the Big Bang, but our understanding of the laws of physics is incomplete and we are currently unable to answer the questions of where the universe actually came from. Cosmologists have many ideas, ranging from the reasonably strange to the extremely outlandish.

Geraint Lewis is Professor of Astrophysics at The University of Sydney.

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