Edward J. Barlow
Member of National Academy of Engineering
Recipient of NASA Public Service Award
Previous member Report Review Committee of the National Research Council
Retired Vice President, Research & Development, Varian Associates

Reporting in the Press

Finally, when a statement is made in the press or a journal that a distant galaxy with such and such a redshift is such and such distance away and that we are seeing it when the universe was only so old we might ask:
  • What cosmological model is being used?
  • Is space flat or curved positively or negatively?
  • What concept of distance is being used?
  • If proper distance, is it distance now or distance then?
  • What value of H0 is being used?
  • Is the redshift treated as cosmological or Doppler?
  • What value of the cosmological constant is being used?
  • What is the assumed ratio of actual mass density to critical density?

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