An Air Force Official said this week "the Air Force does not discuss this program."

Rumors of this unmanned spy craft began back in 2008, when Northrop Grumman Aircraft received a large bid from the U.S. Air Force classified budget program.

Aviation Week and Technology magazine recently unveiled what they have discovered about the massive aircraft, which is twice as big as any current drone (including the one that took out Osama bin Laden) and looks more like a stealth bomber.

The RQ-180 is reportedly going to be operational in 2015, and sources say it will be designed towards penetrating what is called "denied" airspace, or places where we're not supposed to be snooping.  Interest and efforts to find out more came after reports filtered in earlier this year  about people seeing test flights of a strange looking plane near Area 51 in Nevada.

The aircraft is apparently being build by Northrop Grumman's Integrated Systems division, the same on that builds the B-2 Stealth Bomber.  The picture is a rendition of what it supposedly looks like, based upon the very limited sightings and information that has trickled out.

You can read more about this amazing aircraft, and how the government kept it so quiet for so long, at Aviation Week and Technology online.