What are your odds of seeing a UFO in the U.S.?

The Roswell, New Mexico UFO crash. A UFO and its alien passengers crashed into the deserts of New Mexico, where they were collected by the US military and hidden from the public.

José Higgins saw three humanoid figures coming out of a UFO in Sao Paulo, Brazil.

Thomas F. Mantell, an experienced pilot with over 2000 hours in the air, died in a crash after being sent to investigate a UFO over Kentucky.

Two commercial pilots saw a glowing object pass by their plane before it pulled up into a cloud and traveled out of sight near Montgomery, Alabama.

An Air Force pilot saw and pursued a UFO for 27 minutes over Fargo, North Dakota.

Radar of an F-61 Black Widow over Japan detected something below the aircraft. When the pilot attempted to intercept it, he saw what looked like a stubby cigar that then accelerated and disappeared.

Among the most famous pictures of a UFO, Paul and Evelyn Trent observed a slow-moving, metallic disk-shaped object over their farm just outside Sheridan, Oregon. They managed to take two photos before the object sped away to the west.

Nick Mariana, the manager of a minor-league baseball team, saw two bright silvery objects rotating while flying over Great Falls, Montana. He filmed them for 16 seconds on his 16 mm movie camera.

From 25-30 August, professors and students saw strange lights flying over Lubbock, Texas. They were 15-30 objects flying in a v or u formation, each the size of a dinner plate, appearing greenish-blue and flying over 600 mph.

Throughout the month, a series of UFO sightings were reported in Washington D.C. Most of these involved various lights moving at speeds that ruled out shooting stars or known aircraft at the time.

Ralph Mayher filmed good footage of a high speed UFO on his 16mm camera, exposed at 24 frames per second. He handed the film over to the Air Force for analysis, but never had his film returned - the analysis report was also never released.

Three Prescott Arizona residents saw a total of eight UFOs at Del Rio Springs Creek. Numerous other sightings reported throughout the first half of the year near Prescott.

Felix Moncla flew to investigate a UFO near the Soo Locks in Michigan. After his radar blip met the unidentified object in an assumed crash, Moncla disappeared. No trace of the plane or pilot was ever found.

The crew of a Royal Dutch Airlines DC-4 flying over Greenland saw three to four lens-shaped objects veer north and change position in formation.

800 people from three villages in the Bihar region of India saw a gray, 12-foot UFO. It hovered in mid-air about 500 feet off the ground for a few minutes, then took off at incredibly fast.

The first reported case of sex with an alien, South African photographer and meteorologist Elizabeth Klarer wrote a detailed account of her interactions and relationship with the Alien Akon who fathered her son Ayling in the Drakensberg.

An Air Force RB-47 with the most advanced monitoring equipment of that time was tracked for 700 miles by a UFO. The object was observed in Kansas, followed through Missouri and over Texas.

One of the first abduction claims, Antonio Vilas Boas claimed he was abducted from his farm in Minas Gerais, Brazil. He was examined by humanoid aliens and had sex with an alien woman aboard the egg-shaped UFO.

Numerous people in and around the town of Levelland, Texas reported seeing a large, bright, egg-shaped object. At least 10 different cars' lights and engines stopped working at the same time, before becoming functional once the object flew away.

It was the first widely publicized alien abduction when Betty and Barney Hill were abducted south of Lancaster on Route 3 in New Hampshire. They said that they were abducted and medically examined by small aliens after seeing their spacecraft.

Two police officers saw a shiny, copper-colored craft landing on a street in Pretoria, South Africa. Their patrol car cut out and it flew away. Nearby witnesses saw a bright light and a red ball in the sky.

Considered Pennsylvania's Roswell incident, a fireball was seen by thousands in six states and Canada, causing sonic booms near Pittsburgh. The object was recovered by the US military in the town of Kecksberg, with a lot of secrecy.

Cameraman Leman Hanson shot 10 seconds of 16 mm color footage of a UFO on Catalina Island off the coast of California.

A UFO was observed near Fort Beaufort in South Africa taking off with bright lights. Later in the year, a school headmaster claimed to have seen a still smoldering UFO landing site in the town of Rosmead.

Astronauts aboard space station Skylab 3 discover an unknown object in their photographs. It appears to be a bright red humanoid figure.

Two men were fishing off a pier on the Pascagoula River in Mississippi when they heard a whizzing sound and saw two flashing blue lights and an oval object 30-40 feet across. They were taken aboard and examined

A UFO was spotted in North Bergen, New Jersey, near a large apartment building called Stonehenge. After the man, George O'Barski, told his friend, they investigated and learned several residents of the building also saw the strange lights.

UFO was seen hovering over restricted airspace of Wurtsmith Air force base in Michigan. It was chased by a KC-135, but never recovered for explained.

Travis Walton and five other members of a logging crew saw a large, silvery disc hovering above a clearing in Arizona. The crew saw Walton hit by a beam of light. He was missing for five days.

Constable Jim Blackwood, a Mountie in Clarenville Canada, saw a flying saucer. It hovered for an hour and a half. When he turned his cruiser lights on and off, the UFO mimicked them before taking off like a shooting star.

Val Johnson's squad car was engulfed in light in Minnesota. The windshield was shattered and a headlamp was damaged. His wristwatch and the vehicle's clock had stopped for 14 minutes. He also had welder's burns.

Robert Taylor saw a flying dome hovering above a forest clearing near Livingston, Scotland. He lost consciousness and when he came home disheveled, his wife and police took him to the site where they found ladder-shaped marks.

Betty Cash, Vickie Landrum and Vickie's seven-year-old grandson Colby saw a huge, diamond-shaped object above the trees as they drove through southern Texas. They felt intense heat and all were later treated for radiation sickness.

A V-shaped object covered in lights was seen in Hudson Valley, New York by hundreds of residents. One witness claimed that if there was such a thing as a flying city, this was it.

The Phoenix Lights over Arizona are one of the most documented sightings. Hundreds of people saw the v-shaped formation of lights that blocked out the stars.

UFOs appearing as lights in a huge V formation moved through the New Jersey sky too. Hundreds of onlookers reported the event and it was videotaped. It also corresponds to missing-time reported by a man in Fort Lee, NJ.

A UFO was seen on radar and eye witnesses flying over the pacific from the coast of California. The UFO then sped off at a great speed, leaving pilots and other witnesses dumbfounded.

United Airlines pilots and employees saw a saucer-shaped, unlit craft hovering over a Chicago O'Hare Airport terminal. It then shot up vertically at such speed that it left a clear blue hole in the cloud layer.