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Purposeful UniverseJanuary 31, 2022< 1 min read

How Do We Know The Age of The Universe? [VIDEO]

Scientists know that the universe is about 13.8 billion years old. But how do they know this?

Scientists use telescopes that allow them to look into space at different distances and therefore different points of time in cosmic history. There are several factors scientists consider at when determining the age of the universe:

  • Background radiation left over from the big bang
  • The age of stars 
  • The expansion rate of the universe
  • The age of elements and planets

Listen to Dr. Jennifer Wiseman discuss how we know the age of this short video.



Purposeful Universe

The Purposeful Universe seeks to explore and present, through award winning videos, the abundant order in nature that funnels biological systems toward increasing levels of complexity and sophistication—suggesting that human life is the purposeful outcome of a complex, ordered system.