An object spotted flying by the International Space Station moments after its livestream went dead has conspiracy theorists claiming NASA is covering up proof of a UFO.
Axar.az reports that, in the footage, an object seems to be floating above the planet.
The man that spotted the object says it is definitely a UFO, but this is unlikely.
There are many alternative explanations - like reflections from the station windows or lights from Earth - that could explain the sighting.
While it is not always possible to determine exactly what these objects are during the brief period they appear in the stream, there are a number possible explanations for these types of sightings.
In the past, a Nasa spokesperson has explained, 'Reflections from station windows, the spacecraft structure itself or lights from Earth commonly appear as artefacts in photos and videos from the orbiting laboratory.'
John Craddick, from Wolverhampton, told the Sun he was sitting with a friend, teaching him how to use the Nasa live feed when he spotted the object on Friday 20 January.
'I've been watching it for years but never seen any UFOs on it before,' he said.
'At first it was really small and then it grew bigger, lasting for about 25 seconds.'
Mr Craddick said 'there's nothing human which can fly that high', which he took as evidence it was a UFO.
While it is not always possible to determine exactly what these objects are during the BRIEF period they appear in the stream, there are a number possible explanations for these types of sightings.
'It is astonishing how many UFOs are seen buzzing around the ISS, but like this video there is usually a simple explanation for them,' Nigel Watson, UFO expert and author of the UFO Investigations Manual.
'This could well be a lens reflection that appears and then goes as the LIGHT changes, giving the impression of an extraterrestrial space coming into view and then cruising out of sight.
'Many UFOs caught by the ISS's cameras can be also be explained as images of space junk or satellites in the distance, and even very small flecks of paint or particles can appear like UFOs when caught by the bright light from the sun.'
In the past, a Nasa spokesperson has explained, 'Reflections from station windows, the spacecraft structure itself or lights from Earth commonly appear as artefacts in photos and videos from the orbiting laboratory.'