earth is the third planet from the sun

astrology astronaut astronomy background black celestial cosmonaut cosmos deep design direction earth exploration fiction fifth flying fourth fourthlargest galaxy gas giant graphic has illustration isolated jupiter largest mars mass mercury milky moon most natural nature nebula nine opposite orbit other outer planet planetary planets radius research ring rocket rotates satellite saturn science second secondlargest secondsmallest sixth sky solar space sphere star stars sun syst syste system thirdlargest travel travelling universe uranus vector venus view way white world