There should be no visible signs of any aliens or extraterrestrial life in the surroundings.
There should be no recognizable forms of technology or infrastructure in the background.
There should be no visible signs of any vegetation or plant life on the planet's surface.
There should be no recognizable forms of pollution or waste on the planet's surface.
There should be no visible signs of any military or defensive installations.
There should be no recognizable forms of recognizable animals or wildlife.
There should be no visible signs of any recognizable landmarks or monuments.
There should be no recognizable forms of recognizable geological formations, such as mountains or canyons, that would not be found on the surface of the planet being explored.
There should be no visible signs of any recognizable weather patterns, such as clouds or rain.
There should be no recognizable forms of recognizable celestial bodies, such as moons or planets, that would not be visible from the planet's s