The Milky Way and the other members of our Local Group of galaxies A diagram showing the phases of the Earths moon Saturn seen from the surface of its moon, Rhea The view from the rim of the caldera of Olympus Mons on Mars Ice ridges on Jupiters moon, Europa Some galaxies have powerfully active cores that emit jets of energy A scene on the tortured, wrinkled terrain of Miranda, one of Uranus many moons Black Hole Singularity Diagram Diagram of the transparency of Earths atmosphere to different types of radiation A lake of liquid methane on Saturns giant moon, Titan Chicago disintegrates as a nuclear explosion erupts in the middle of the city Jupiters large moon, Europa, is covered by a thick crust of ice Panorama of a landscape on Venus at 700 degress Fahrenheit Panorama of a landscape on Venus A scene on a moon of Upsilon Andromeda b, a recently discovered extrasolar planet An astronaut observes the ruption of one of Tritons giant cryogeysers A timeline of Earths history A simplified Herzprung Russell Diagram showing how stars are classified Deep within the raging storm that is the Great Red Spot of Jupiter A binary star system consisting of a red giant and a white dwarf Our Sun may have formed from a protostellar nebula like this one Pluto and its moon Charon lie at the frontier of the solar system The planets and larger moons to scale with the Sun The primordial Earth being formed by asteroid like bodies Illustration of a gaseous nebula from which star formation may occur Illustration of the peaks surrounding the Peary crater on Earths moon Uranus moon Miranda is covered with meandering cracks and grooves Artists concept of a face on view of our galaxy, the Milky Way A comet passes over the surface of Mercury Illustration of the Maxwell Montes mountain range on the planet Venus Mars seen from its outer moon, Deimos An ancient lava flow on Earths moon A panorama of the strange, mesa like mountains on Io A scene on Jupiters moon, Io, the most volcanic body in the solar system The collision of the Milky Way and Andromeda galaxies seen from the Earth Explorers examine one of the great fissures from which Enceladus geysers erupt Plumes of ice crystals rise from geysers into the sunlight as dawn breaks on Enceladus Plutos moon, Charon, hovers above the frozen landscape of the icy planet Ice spires on Jupiters large moon, Callisto A diagram illustrating the parts of Earths atmosphere Orbits of Earth Crossing Asteroids Uranus seen from the surface of its moon, Ariel A diagram of the Milky Way, depicting its various named parts A cutaway view of the sun A gigantic scarp on the surface of Uranus moon, Miranda Jupiters moon, Europa, covered by a thick crust of ice Saturn seen from the surface of its moon, Rhea