artist's depiction of a large asteroid approaching earth on a collision course. - 行星地質學 幅插畫檔、美工圖案、卡通及圖標
an artists depiction of an earth-like planet alone in space with a pair of moons in orbit. a nebula shines in the background. - 行星地質學 幅插畫檔、美工圖案、卡通及圖標深色的, 銀河
artist's concept of a distant red planet orbiting its sun. this alien world shows definite signs of water, and therefore maybe life itself. - 行星地質學 幅插畫檔、美工圖案、卡通及圖標火星
artists concept of an astronaut floating in outer space by a water covered planet. - 行星地質學 幅插畫檔、美工圖案、卡通及圖標太空人
the sun rises over gale crater, mars. this is one of the prospective landing sites for the mars science laboratory rover. - 行星地質學 幅插畫檔、美工圖案、卡通及圖標太陽系外行星
artist's concept of the perseverance rover using its drill to core a rock sample on mars. - 行星地質學 幅插畫檔、美工圖案、卡通及圖標
artist's depiction of the difference in size between earth and kepler 22b. - 行星地質學 幅插畫檔、美工圖案、卡通及圖標太陽系外行星
a lunar lander begins its descent to the moon's surface from an altitude of 40,000 feet. - 行星地質學 幅插畫檔、美工圖案、卡通及圖標月亮
geysers emit water vapor at the south pole on the moon enceladus near the planet of saturn. - 行星地質學 幅插畫檔、美工圖案、卡通及圖標
machines arriving on an alien world, which mankind is about to colonize as we expand through the universe in the distant future. - 行星地質學 幅插畫檔、美工圖案、卡通及圖標
a robotic rover explores a geological feature of a rocky and barren alien world. a large cloud covered planet rises over the airless environment. - 行星地質學 幅插畫檔、美工圖案、卡通及圖標
zeta piscium is a binary star system consisting of a red giant and a white dwarf. the latter is drawing in material from its companion. - 行星地質學 幅插畫檔、美工圖案、卡通及圖標星球
jupiter's large moon, callisto, is an icy world. many steep cliffs, called scarps, criss-cross its surface. - 行星地質學 幅插畫檔、美工圖案、卡通及圖標
even though mercury is the planet nearest the sun, it may have large amounts of ice at its poles, permanently shaded from the sun. - 行星地質學 幅插畫檔、美工圖案、卡通及圖標
an artists depiction of the view from a rocky and barren alien world. a moon rises over the airless environment. - 行星地質學 幅插畫檔、美工圖案、卡通及圖標星球
an artist's depiction of a blue planet with a thick atmosphere and it's orbiting small moons. - 行星地質學 幅插畫檔、美工圖案、卡通及圖標外太空, 太陽系外行星, 星星
pluto's blue atmosphere glows as it eclipses our sun as seen from its moon, charon. - 行星地質學 幅插畫檔、美工圖案、卡通及圖標星球
artist's concept showing a lake of liquid water around gale crater on mars. - 行星地質學 幅插畫檔、美工圖案、卡通及圖標隕石坑, 火星
artist's depiction of a black hole and it's accretion disk in interstellar space. - 行星地質學 幅插畫檔、美工圖案、卡通及圖標伽馬射線
illustration of jezero crater, the landing site of the mars 2020 perseverance rover. - 行星地質學 幅插畫檔、美工圖案、卡通及圖標
an artist's depiction of an earth-like planet in deep space facing an imminent collision with a comet. - 行星地質學 幅插畫檔、美工圖案、卡通及圖標
members of the planets advanced civilization leaving mars for a new home world. - 行星地質學 幅插畫檔、美工圖案、卡通及圖標
artist's concept of the ingenuity mars helicopter on the red planet's surface. - 行星地質學 幅插畫檔、美工圖案、卡通及圖標直升機
the sun rises over one of a pair of twin planets. both planets are covered in water and clouds. - 行星地質學 幅插畫檔、美工圖案、卡通及圖標
