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?

In New Jersey a teenage girl is killed and a psychic claims she can see her murderer. In Oregon, a psychic tries to help solve the slaying of a cowboy. Can psychics really help in police and government investigations?

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.

They are falling out of the skies, clogging up rivers and spoiling shorelines around the planet. Why are we seeing mass animal die-offs around the world? Scientists are searching for answers, while also studying why some species are beginning to vanish.

Tales of the Bermuda Triangle are the stuff of legend, but roundly dismissed by skeptics as tragic, but explainable disappearances. Now there is a different mysterious area hovering just above the earth that has gotten the attention of scientists.

In every culture and for centuries, witnesses report strange encounters with apparitions, or ghosts. Are these spirits caught between this world and the next, or are they merely figments of wild imaginations?

In Puerto Rico and Texas farmers wake up to find their chickens, pigs, and goats dead but not eaten. People wonder if this unusual predator is the real Chupacabra.

From Loch Ness to the west coast of Canada, people are reporting sightings of sea creatures they can't explain. Are they seeing remnants from the dinosaurs or mythical beings or just mistaking ordinary creatures for something paranormal?

For ages, prophets have suggested that disastrous events and maybe even the end of the world lie ahead. Are we looking at an unquenchable human desire to make sense out of the chaos of life - or a true supernatural power?

All over the world, mysterious, ghostly lights appear on the ground and in the air without warning or explanation. The lights continue to puzzle scientists who wonder if they could be a new source of energy, precursors to natural disasters, or UFOs.

Different cultures call it different things: Bigfoot, Sasquatch, Abominable Snowman and Yeti, but they're all talking about the same phenomenon and the descriptions are similar: large, hair-covered creatures that walk upright like humans.

Across the planet thousands of crop circles have been reported. Most of these patterns are dismissed as hoaxes, but for some they beg the question, are these crop circles manmade, or something from another world?

Around the world, sightings of strange flying objects and mysterious lights in the sky have been reported. Could these UFOs be signs of intelligent life outside our planet, or are they just natural or man-made phenomena?