gliese 581d is the first extrasolar planet capable of having liquid water on its surface. - 矮恆星 幅插畫檔、美工圖案、卡通及圖標
artist's concept of teide 1 from the surface of a hypothetical mars-like planet. - 矮恆星 幅插畫檔、美工圖案、卡通及圖標
a view across a hypothetical barren alien planet towards a brown dwarf in the sky. - 矮恆星 幅插畫檔、美工圖案、卡通及圖標
flying life forms grace the crimson skies of the earth-like extrasolar planet gliese 581 c. - 矮恆星 幅插畫檔、美工圖案、卡通及圖標
upsilon is another sun like our own with a planet that lies within the habitable zone. - 矮恆星 幅插畫檔、美工圖案、卡通及圖標
an artist's depiction of a binary star system with a close orbiting planet. - 矮恆星 幅插畫檔、美工圖案、卡通及圖標太陽系外行星
illustration of a brown dwarf star as seen from a large moon orbiting the failed star. - 矮恆星 幅插畫檔、美工圖案、卡通及圖標
a 25-million-year-old protoplanetary disk around a pair of red dwarf stars 350 light-years away. gravitational stirring by the binary star system (shown in this artist's conception) may have prevented planet formation. - 矮恆星 幅插畫檔、美工圖案、卡通及圖標
a binary star system consisting of a red giant and a white dwarf, seen from a hypothetical planet. - 矮恆星 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. - 矮恆星 幅插畫檔、美工圖案、卡通及圖標星星, 紅色, 軌道運行
a hypothetical planet orbiting a red dwarf star. if it orbits close enough, it may have liquid water, like the earth. - 矮恆星 幅插畫檔、美工圖案、卡通及圖標
a view across a hypothetical primitive alien planet towards a brown dwarf in the sky. - 矮恆星 幅插畫檔、美工圖案、卡通及圖標