Tags: landscape, silicate, rich, blue, pool, hveravellir, iceland
Tags: space, globules, solar, masses, containing, dense, recycled, cosmic, dust, molecular, hydrogen, carbon, oxides, helium, mass, silicate, visible, close-up, tiny, corner, rosetta, nebula, image, credit, pete, richardson
Tags: space, europa, smallest, jupiters, galilean, moons, primarily, silicate, rock, water-ice, crust, ironnickel, core, thin, atmosphere, composed, oxygen, image, nasajpl