Tinfoil Hat Time!

Much to the delight of sky-watchers in Nevada, it appears that there is some major construction at Groom Lake (aka Area 51):

In the latest satellite imagery released to the public, dated June 30th (partial) and June 2nd (full), Area 51 continues to undergo changes, and one of them is significant in nature. This new construction project is of especially high interest, not just because of its physical size, but also because of its very peculiar location and timing.

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In 2007, the biggest addition in some time was added to the base's southwest corner, hidden partially behind a giant dirt berm. This fairly massive and modern hangar was fitted-out with extensive office space and a pair of 175 foot doors, one on each side of the structure. The facility was clearly purpose-built for something, and that something, or some things, were not small in size. The width of the doors alone added to the mounting evidence that what was contained within was an asset, or assets, that were strategic in nature.

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At the time that this new structure was completed, it was thought to house a proof of concept demonstrator for the Next Generation Bomber (NGB) program and/or a deep penetrating and very stealthy High Altitude Long Endurance (HALE) reconnaissance drone, basically an aircraft with similar capabilities as the RQ-4 Global Hawk but much more survivable and even more autonomous.

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With this background in mind, we now return to the new developments at Area 51. A new engine test cell located towards the northern part of the base appears to have been finalized since the last images were available, and there are some other small improvements that are noticeable around the sprawling installation, but the massive hangar being constructed far south of the aforementioned hangar built in 2007 is quite literally, a big deal.

The location of this new structure, measuring about 225 feet across, is interesting as it is located right off the end of the runway, far south of the rest of the base. This location would keep it out of the immediate view of the general apron area, and would also allow for quick access to the runway, resulting in minimal taxi times.

The fact that this new hangar will have doors on each side, evidenced by the taxiway emanating out from both sides of the structure, means that pre-flight checks, and possibly engine starts, could be executed while under the structure's protective cover. This is beneficial when trying to avoid satellite flyovers.

Although the times when flyovers occur are all known, and operations are planned around them accordingly, such planning is no guarantee that the aircraft will not experience problems while taxing, taking off or landing, thus leaving it exposed to prying eyes in low earth orbit. So having a hangar as close to where the aircraft launches and recovers is beneficial if that aircraft is of an especially sensitive nature.

I think that we can be reasonably certain that it's directly connected to a specific project, I don't think that the USAF builds massive hangars just to F%$# with aviation buffs.

My guess is that this is associated with the next generation bomber, the successor to the B-2, but that is just a wild-assed guess.