The Daily Mail sometimes runs UFO or other oddity stories, and here are couple of them. First, a mysterious object or formation on the Moon:
Second, apparently a rock mysteriously showed up in front of one of the Mars rovers between photos taken a couple of weeks apart:
To me, both are perfectly explainable. The first (the feature on the Moon) is simply the pit dug to expose the Monolith. The second ... well, that is just the Martians messing with our heads.