There was some concern that the rate of radioactive decay was altered based on the Earth-Sun distance, but that's been disproven: http://phys.org/news/2014-10-t

There was some concern that the rate of radioactive decay was altered based on the Earth-Sun distance, but that's been disproven: http://phys.org/news/2014-10-textbook-knowledge-reconfirmed-radioactive-substances.html http://phys.org/news/2014-10-textbook-knowledge-reconfirmed-... I wonder if this variation in G is similar.