Type:

Other

Description:

Astronomers estimate the age of the universe in two ways: by looking for the oldest stars, and by measuring the rate of expansion of the universe and extrapolating back to the Big Bang. This site explains how these measurements are made and points out the discrepancy in ages derived from the two methods. It features images, background information, and links to other resources regarding the age of the universe.

Subjects:

  • Science > General

Education Levels:

  • Grade 1
  • Grade 2
  • Grade 3
  • Grade 4
  • Grade 5
  • Grade 6
  • Grade 7
  • Grade 8
  • Grade 9
  • Grade 10
  • Grade 11
  • Grade 12

Keywords:

Space Science,Chemistry,NSDL,Science,oai:nsdl.org:2200/20070206162153528T,Gravity,Speed of light,Cosmology,Physics,High School,NSDL_SetSpec_2802835,Space science,Physical sciences,Astronomy,Space sciences,Geoscience,Earth science

Language:

English

Access Privileges:

Public - Available to anyone

License Deed:

Creative Commons Attribution Non-Commercial Share Alike

Collections:

None
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