A test of general relativity using radio links with the Cassini spacecraft

  title={A test of general relativity using radio links with the Cassini spacecraft},
  author={B. Bertotti and L. Iess and P. Tortora},
  • B. Bertotti, L. Iess, P. Tortora
  • Published 2003
  • Physics, Medicine
  • Nature
  • According to general relativity, photons are deflected and delayed by the curvature of space-time produced by any mass. The bending and delay are proportional to γ + 1, where the parameter γ is unity in general relativity but zero in the newtonian model of gravity. The quantity γ - 1 measures the degree to which gravity is not a purely geometric effect and is affected by other fields; such fields may have strongly influenced the early Universe, but would have now weakened so as to produce tiny… CONTINUE READING
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