There have been accounts throughout history of blood red rain or blobs of an unknown gelatinous substance falling after meteor showers. Scientists investigate the mystery and what they're discovering might prove some of the superstitions to be true.

What happens when we die? Some people who have been near death report being bathed in images, sounds and feelings so vivid that their lives are changed forever. But are these experiences real, or is it all just a strange last gasp of the human brain?