Tanks Guard Crashed UFO In Antarctica.

In july 2012, a curious Google Earth image was discovered by Russian UFO researcher, Valentin Degterev.

The image quickly made its way around the media, with varying reactions,
Andrew Fleming from the British Antarctic Survey, told the uk newspaper the Mail Online, that the object was clearly a simple crevasse in the ground.

'They can be tens of metres deep, nothing unusual, It's certainly not a UFO.' Well it seems he may be right, however, an image purporting to be from the same site taken one year earlier has been uncovered.
Researchers looking at previous satellite images of the same site taken in April and December 2011, found what appear to be four massive vehicles parked in the snow, pointed towards a mysterious object.

There appears to be more than a simple crevasse going on in this image.
What appears to be going on is that a huge scientific research centre has been deployed to a meaningless location in an icy desert. which just so happens to be by an object and strange feature in the ice, that looks all for the world like a crashed aircraft pattern, only for it to completely vanish a year later.

What should we make of these earlier satellite images? While some reports identify the shapes as “tanks,” if they really are vehicles, they’re massive in size, probably around 70 feet in length. There are no tire tracks, but they could have been covered by snow or blown away.
They look more like research centres, also note the drift patterning around them towards the object, is this camouflage canvass, why are all the drifts in the same direction and none on the other side of the vehicles?

Is it a crashed alien craft?
If it was, I would have definitely filled in the hole afterwards.