Chris May

This article is really interesting. It discusses 13 things that don't make sense, or that we don't understand. The one that I have found most interesting over the years is the question of why the Pioneer spacecraft seem to be accelerating out of our solar system. The small acceleration, which was noticed on both space craft, amounts of the one ship being 400,000 Km ahead of where it should be at this point. Some propose that this could be caused by the same dark energy that seems to be at the source of our ever expanding universe.