a crescent jupiter and volcanic satellite, io, hover over the horizon of the icy moon of europa. - 天體生物學 幅插畫檔、美工圖案、卡通及圖標木星, 月亮, 探險
jupiter's large moon, europa, is covered by a thick crust of ice above a vast ocean of liquid water. - 天體生物學 幅插畫檔、美工圖案、卡通及圖標木星, 旅行
a scene on jupiter's moon, io, the most volcanic body in the solar system. - 天體生物學 幅插畫檔、美工圖案、卡通及圖標月亮, 木星
artist's concept showing how the surface of earth appeared during the hadean eon. - 天體生物學 幅插畫檔、美工圖案、卡通及圖標地球, 起源, 熔岩
volcanic activity on jupiter's moon io, with the planet jupiter visible on the horizon. - 天體生物學 幅插畫檔、美工圖案、卡通及圖標木星
artist's concept of an earth-sized planet passing in front of a sun-like star. - 天體生物學 幅插畫檔、美工圖案、卡通及圖標
artist's concept of jupiter as seen across the icy surface of its moon europa. - 天體生物學 幅插畫檔、美工圖案、卡通及圖標木星, 月亮
artist's concept of epsilon eridani, a possible habitable planet. - 天體生物學 幅插畫檔、美工圖案、卡通及圖標太陽系外行星, 外太空, 太陽光線
artist's concept of the northwest side of the olympus mons volcano on mars - 天體生物學 幅插畫檔、美工圖案、卡通及圖標火星, 火山
the comet of 2014 makes a close approach to mars and puts on a spectacular show for the opportunity mars exploration rover. - 天體生物學 幅插畫檔、美工圖案、卡通及圖標
the view from the rim of the caldera of olympus mons on mars, the largest volcano in the solar system. - 天體生物學 幅插畫檔、美工圖案、卡通及圖標火星
a lone astronaut looks up at the sun while exploring mars. a rover trails behind. - 天體生物學 幅插畫檔、美工圖案、卡通及圖標火星
geysers of enceladus showing cryovolcanism near the south pole of enceladus. - 天體生物學 幅插畫檔、美工圖案、卡通及圖標南極, 月亮, 宇宙探索
a team of astronauts work on a space station in orbit over a cloud covered world. a neighboring earth-like planet sees the radiance of a nearby sunrise. - 天體生物學 幅插畫檔、美工圖案、卡通及圖標地球, 太空站, 軌道運行
artist's concept comparing the size of the gas giant jupiter with that of the earth. - 天體生物學 幅插畫檔、美工圖案、卡通及圖標大小的比例
illustration of the surface of the massive asgard impact basin on jupiter's moon, callisto. - 天體生物學 幅插畫檔、美工圖案、卡通及圖標隕石坑
artist's concept of a distant red planet orbiting its sun. this alien world shows definite signs of water, and therefore maybe life itself. - 天體生物學 幅插畫檔、美工圖案、卡通及圖標火星
artist's concept illustrating the two saturn-sized planets discovered by the kepler mission. - 天體生物學 幅插畫檔、美工圖案、卡通及圖標星球, 太陽系外行星
artist's depiction of the difference in size between earth and kepler 22b. - 天體生物學 幅插畫檔、美工圖案、卡通及圖標太陽系外行星
artist's concept of kepler 22b, an extrasolar planet found to orbit the habitable zone. - 天體生物學 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. - 天體生物學 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. - 天體生物學 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. - 天體生物學 幅插畫檔、美工圖案、卡通及圖標
fleet of colonization ships departing for a discovery trip into a neighboring solar system. - 天體生物學 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. - 天體生物學 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. - 天體生物學 幅插畫檔、美工圖案、卡通及圖標星球
pluto's blue atmosphere glows as it eclipses our sun as seen from its moon, charon. - 天體生物學 幅插畫檔、美工圖案、卡通及圖標星球
humanity's first attempt to establish a large and individual city on another planet. the large space station acts as a customs agent and gate into the world. - 天體生物學 幅插畫檔、美工圖案、卡通及圖標
