NASA sends out Curiousity Rover to Mars. Now, we can see a 360 degree view of the planet, Mars. It is like Earth only it is Mars. The red planet is made of iron, and that is why it looks so red.
There were no Martians visable on this trip, but if you watch any 1950’s movie of the planet Mars, you know there are Martians. This is an interesting video of Mars, and it is not impossible to vidualize humans becoming the illegla aliens on Mars.