But, it also appears to look transparent rather than solid.
It was found in NASA footage uploaded online by the space agency by persistent alien chaser, Scott C Waring, editor of ufosightingsdaily.com.
He is convinced it is an alien space craft actually captured on camera.
It appears to move slowly across the blackness of space, then it moves across the Earth’s skyline before eventually fading from the NASA camera.
Mr Waring said: “The UFO was partially cloaked, which made it look transparent.
NASA
The ‘cylindrical UFO’ as seen in NASA video from the ISS.
