Type:

Other

Description:

This Why Files article discusses newly discovered planets outside our solar system and focuses attention on the question: Are we alone in the universe? Topics covered are: how did scientists discover the planets, what besides planets could they be, the upcoming collision of the solar system with a dense cloud of interstellar gas, and scientists' search for intelligent life in outer space. An update on the planets was posted in July 1998. Six astronomers were interviewed for this article.

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

Keywords:

Space Science,Informal Education,Chemistry,Middle School,NSDL,High School,Science,NSDL_SetSpec_dlese.org,oai:nsdl.org:2200/20061003230300773T,Elementary School,Space science,General Public,Physics,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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