The Pioneer Effect
March 22, 2008 1:26 AM Subscribe
NASA is baffled by unexplained discrepancies
in the velocities of some of its spacecraft. Dubbed the Pioneer Effect
, it has been observed before but has now been discovered in more probes. Many theories
have been put forward, many disproved, and some are wondering if our understanding of gravity
I don't know much about this at all but it sounds interesting.