We know they test rovers on Devon island, but that does not mean the actual rover that's supposed to be on Mars is actually there instead. The ability to fake an earth picture to look similar to a Mars picture doesn't demonstrate that either, and you did not demonstrate the fake picture actually came from NASA. I love how the cock suckers who made that site disabled right click image saving on it, to try to keep people from being able to run a reverse image search and find the original. Here it is:
[link to en.wikipedia.org (secure)]
Burren, Ireland. Notice how in the faked NASA version (a screencap of gimp by the way) it's labeled "Ireland 2" next to the original Burren photo "Ireland 1" - you guys did a shitty job trying to cover up the fact that you faked the photo as a second version from an original photo of Ireland.

But wait! There's more! That bit of a "Mars rover" visible in the faked "NASA" version of the photo shows two things quite clearly, the top of a low gain antenna and the base of a lander from one of the Mars Exploration Rovers, either Spirit or Opportunity. That means it had to come from one of those two, at the landing site, while the rover was still on or very near to its lander. Well, that means you done fucked up, because there's a very limited number of pictures it could have come from and it's very easy to find the originals... You conspiracy liars and fakers make this way too easy, because you almost always use a very iconic photo that is very easy to find. You do the minimal amount of effort, which means you basically just google "mars rover photo" and grab one of the first things you find to use as a bit of "NASA" to add to your fake photo. It makes it REALLY easy to prove the fake did not come from NASA at all, but that it came from YOU and that YOU lied and faked it, not NASA. Here's the original your faked version stole from:
[link to nssdc.gsfc.nasa.gov (secure)]

It does NOT have Burren, Ireland in the background. And yes, that bit of the Mars Exploration rover Spirit and its lander is a PERFECT match for the faked photo, that's where the faked photo took it from.

You my friend are BUSTED!

Here is evidence that the rover is on Mars: