There is many reasons for this, one could be they are covering up “aliens” or two they could be hiding themselves. In an article I read talking about the possibility our technology is advancing faster than ever or humans having secret found technology and learning how to use it. Also the article included a posting by the CIA stating that UFO’s seen in photos from 1980’s were them (the CIA). Or its just plain nothing but it’s a bit suspicious to be nothing.
Last week, a grey object was seen coming up over the horizon and then disappearing moments before Nasa switched to a different camera. One possible is that it was a bit of debris that hit the lens, or even the moon
UFO watcher Toby Lundh recently spotted a UFO outside the space station, before the stream was interrupted for 10 to 15 seconds. The alien hunter claims to have captured a still photo of an unidentified object (pictured) that appeared on the live feed on January 6. It look remarkably like the Starfleet insignia in Star Trek.