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Nature 409, 673-675 (8 February 2001) | doi:10.1038/35055646
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Canada Research Chair (Tier 1) Alfred Bader Chair in Organic Chemistry
- Queens University
- Kingston, ON, Canada
Gastroenterologist
- Gastrointestinal Diseases Inc.
- Georgia, USA
Astronomy: The age of the Universe
Christopher Sneden
Abstract
Dating the Universe has always been a tricky business with unsatisfying answers. Astronomers now have a better clock, based on radioactive uranium, that puts the age at around 12.5 billion years.
How old is the Universe? This simple and fundamental question has dominated much of astronomy for centuries.
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