Ancient Alien Weapon Found on Mars?

Is this an actual alien weapon we’re seeing here or are we just imagining things?

This is the debate that has been going on online for quite some time, as the most recent batch of images the Mars Curiosity Rover sent back caused quite a bit of controversy so far, to say the least.

Of all the discoveries that were made, the most debatable is this image that clearly shows a well-defined tubular body sticking out of the ground and pointing straight up to the sky.

Due to its tubular body and the fact that it points straight up, experts online have stated that this is most likely an anti-aircraft gun we’re looking at, as it could very well be meant to shoot whatever foreign body decides to pass by. . .

We also know for a fact that if there is life on Mars, it is most likely underground, so it shouldn’t surprise us if this cannon can dive underground when not active.

The question now is whether this really is an anti-aircraft gun or is it something else?

The image definitely shows the similarity to our own anti-aircraft guns, but that shouldn’t be taken into account considering the fact that the Martians didn’t have the same upbringing as us, to say the least.

Regardless, what do you think this structure is? Do you think it’s an alien weapon or something else?