a super-earth exoplanet has extreme forms of life living within its hot spring craters. - 太陽系外行星 幅插畫檔、美工圖案、卡通及圖標
the sun rises over gale crater, mars. this is one of the prospective landing sites for the mars science laboratory rover. - 太陽系外行星 幅插畫檔、美工圖案、卡通及圖標
a large water covered planet with two moons alone in deep space. the galactic core serves as background while a nearby star illuminates the planetary group. - 太陽系外行星 幅插畫檔、美工圖案、卡通及圖標
an extraterrestrial civilization has lit the night side of its planet. visible moons circle the planet. - 太陽系外行星 幅插畫檔、美工圖案、卡通及圖標