By now we can agree that we are living in an era of constant and ubiquitous surveillance. While that's not great if you value privacy, it's sure useful for those who like to keep an eye out for signs of E.T.
Not only does the NSA keep its eyes and ears on seemingly everyone, but we as a modern species are also surveilling beyond our own planet, from telescopesand in , from robots on and , and from roaming the fringes of our solar system.
As most of these efforts are publicly funded scientific missions, the resulting data and photographs are also available to the public, creating an unprecedented smorgasbord of images for UFOlogists and conspiracy theorists to pore over in search of evidence of alien visitation, ancient astronauts and the cover-ups that have kept them from school textbooks so far.
The past few years, we've been covering the amazing voyages of, Curiosity and the astronauts aboard the , among others. But we're constantly passing over the near-weekly emergence of a new theory or bit of "evidence" culled from the data sent back by these missions that we are not the lone intelligent beings to have spent time in this solar system.
That's because we've yet to see anything very convincing (although this "
secret alien base spaceship comet where the lander is currently napping.
Check them all out in the gallery below.