Which unusual military disappearances defy expectations? Find out all about some of history's greatest mysteries.

The White House and FBI are investigating the mysterious disappearances and deaths of at least 11 American scientists with ...

Some cases are never solved '€” but these documentaries refuse to let them be forgotten. Join us as we count down our picks ...

Every year, thousands of people vanish without a trace, leaving behind grieving families and baffled investigators. While many disappearances follow predictable patterns — domestic disputes, mental ...

Add Yahoo as a preferred source to see more of our stories on Google. Rep. Eric Burlison, R-Mo., discusses the debate over the War Powers Resolution and a string of mysterious deaths and ...

FBI investigates mysterious deaths and disappearances of scientists working on nuclear and space research. Chris Swecker, a former assistant director for the FBI, discusses what he considers the ...

From missing congressmen to pilots, the mysterious Triangle of Alaska holds secrets that decades of searches have failed to ...

The shooting death of a Calgary-born astrophysicist in mid-February in front of his Southern California residence sent ...

In Washington, at least 11 incidents involving scientists in areas such as nuclear technology, space research and advanced weapons are under scrutiny.

If you consider yourself a fan of unsolved mysteries, you need to add these 12 TV shows and movies to your watchlist.