Graphic image of the surface of Mars, cut by canyons
Sunrise and planet on the background of the river and mountains
Earth from space on the background of the starry sky
The moon which is always in front of the eyes but often not noticeable
Image of the surface of an alien planet and galaxy
A planet with a satellite, with the lights of civilization on the surface against the background of a rising star
A long boat on the calm surface of the water against the background of palm trees and sunset