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