even if we are moving closer to the sun, i think nasa or somebody would know about it, there is no way that all of a sudden the earth would fling into the sun unexpectedly. these things take time, over the corse of millions of years, if it was happening, eventually a scientist would find out about it. come on guys the human race isn't that dumb. give us a lil more credit. if something like this was to happen it would be over the corse of millions of years and i would believe we would have found a way to avoid it