Mir Space Station Cosmonaut Films
Cylindrical Shaped UFO, 31 March 1991

This must be one of the best ever UFO videos recorded in Space.

The unknown object was filmed by Soviet cosmonaut Musa Manarov.

The UFO pulsates with a bright, white light and one end of the object glows orange:

http://www.youtube.com/watch?v=WZTjWbuI0dw

The footage comes from the Soviet Space authorities.