Footage has surfaced online of a truck hauling what looks like a flying saucer along a US highway.
The model craft was loaded on to a truck by thieves last Saturday before being dumped in nearby woods.
An investigation was conducted by authorities in Brazil following a spate of UFO 'attacks' in 1977.
The space agency will be testing out its futuristic Mars landing system over Hawaii this week.
The strange saucer-shaped object was picked up on video as it passed over a residential area.
German pilot Manfred Freiherr von Richthofen allegedly shot down a 'silver saucer' over Belgium.
A strange saucer-shaped object has been dug up by miners during excavation work in Siberia.
The space agency has released new video footage from its LDSD test flight back at the end of June.
An experimental saucer-shaped vehicle designed to be used on Mars has undergone a successful test flight.
Amateur pilot Kenneth Arnold kick-started the modern UFO phenomenon after a sighting back in 1947.
Retired engineer Duan Phillips has spent the last 15 years constructing a saucer-shaped flying vehicle.
The space agency is preparing to test a new vehicle that is designed to help astronauts explore Mars.
Bruce and Priscilla Wetherill were terrified when a saucer shaped object hovered inches above their car.
Iran has built an unusual new craft that has been described as "the world's first flying saucer".
Google Earth has taken many strange photographs over the years, one of them is this peculiar saucer shaped object.
A very clear video of a typical saucer-shaped UFO over Ningbo in China is currently doing the rounds on the web.
Russia are embarking on a 5-year program to construct a series of "flying saucer" style flying vehicles.
Anthony Bragalia explores the connection between V-2 tests in the 1940's at White Sands and UFOs.
A builder in London has taken a photograph showing what appears to be four saucer-shaped UFOs hovering over the Houses o...