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Small Comets Bring Water to Earth DLESE Reviewed Collection
This is a copy of a news story originally written on March 1, 2001 that describes the theory of how small comets may have been at least part of the source of the water on our planet. The site also offers links to the University of Iowa's Small Comets research site and information on the ground-based measurements that are used to identify these comets.
Intended for grade levels:
  • Middle (6-8)
  • High (9-12)
Type of resource:
  • Text:
    • Ref. material
  • Cryology
  • Space science
Technical requirements:
No specific technical requirements, just a browser required
Cost / Copyright:
No cost
1995-1999, 2000 The Regents of the University of Michigan and 2000-04 University Corporation for Atmospheric Research
DLESE Catalog ID: DWEL-000-000-000-334
Educational standards:
  • National Science Education Standards (NSES):
    • 5-8:
      • D - Earth and space science:
        • Earth in the solar system
    • 9-12:
      • D - Earth and space science:
        • Origin and evolution of the earth system
        • Origin and evolution of the universe
Resource contact / Creator / Publisher:
Principal Investigator: Dr Roberta Johnson
Windows to the Universe