Unlikely. The distance between the Earth and the Sun varies throughout the year, but it all evens out. When you are trying to figure out the age of a sample t

Unlikely. The distance between the Earth and the Sun varies throughout the year, but it all evens out. When you are trying to figure out the age of a sample that may be thousands of years old, these variations are just noise and nothing significant. What would be interesting is how the decay rate on the nuclear generators aboard Pioneers 10 & 11 and Voyagers 1 & 2 have varied as they traveled away from the Sun over the past 30-40 years. See: http://en.wikipedia.org/wiki/Radioisotope_thermoelectric_generator http://en.wikipedia.org/wiki/Radioisotope_thermoelectric_gen...