Satellite images show a second runway has been constructed and on-site infrastructure vastly expanded
EVER since the 1950s, the US government's Area 51 – located deep within the remote Nevada desert – has been the subject of intense conspiracy theories.
But now Google Maps has offered a rare glimpse of the mysterious government site – revealing a massive build up of infrastructure at the base over the past 30 years.
Area 51 pictured from above in 1984
By 1990 another runway appears to have been constructed
And in 2007, more buildings can be seen built into the neighbouring mountain