Astronaut tweets shot of 'UFO' taken from global — NASA alien shock

The 51-year-old astronaut is fond of posting photos on his Twitter page to share his view from the global Space Station.

Scott Kelly is on his 237 day in space, and before his service ends in March, he takes advantage of his time in space to astonishing photos of deserts, oceans, and night views of city lights seen from the ISS.

A photograph tweeted by an astronaut aboard the worldwide Space Station showing a mysterious object in the sky has ignited speculation among UFO hunters.

One can see the two bright spots in the top right corner of the image, which appears like a UFO.

People continued to question what appeared in Kelly's tweet throughout the week with many explaining the shape as actually part of the space station.

"This one... has a cigar shaped glowing UFO with a metallic body in it. The UFO is about 25 meters long and 150-200 meters away".

The video also gives audiences a better look at the two bright objects that have sparked speculation.

UFO Sightings further went on to say that, UFO constantly lingers around the ISS and Kelly has had several encounters with UFO in the past.

Does this astronaut's tweet prove UFOs exist?