Video footage of an unknown craft hovering in the night sky above Switzerland.
Living bacteria have been found on the outside of the International Space Station, and they may be extraterrestrial, according to one cosmonaut.
Large Black UFO with Another Leading Object Seen in California
British-made NeoXCraft flying car has an airborne speed of 210mph could be in the air by 2020
Video footage of an unknown triangle shaped craft hovering in the sky above Brazil.