Incredible aerial timelapse reveals how the mysterious Area 51 has expanded over the last 30 years
Satellite images show a second runway has been constructed and on-site infrastructure vastly expanded
While the existence of Area 51 is common knowledge, for decades the US refused to even acknowledge its existence.
The base and the area surrounding it are entirely off-limits for civilians, while the airspace is a no-fly zone.
Military personnel with weapons patrol the perimeter of Area 51, with signs warning that security can use “deadly force”.
The closely-guarded nature of Area 51 adds to the intrigue of a site long associated with UFO conspiracy theories.