The Essentials The stars in your sky Take a tour of the constellations that you can see in your sky. Flight over the solar system Get a new perspective on the Sun's family of planets with an imaginary tour that takes you beyond Pluto. The Sun in the zodiac Follow the Sun as it moves through the zodiac constellations. See which constellation the Sun is really in on your birthday. Over the Moon Close in from space on the Earth-Moon double planet. Journey to Mars Speed off to the red planet and discover a mysterious world awaiting its first human explorers. Ring-side view of Saturn spectacular However you look at it, Saturn's array of rings is an amazing phenomenon. Take it from every angle, in light and shade. A comet plunges to its death Imagine you are alongside a fragment of Comet Shoemaker-Levy 9 as Jupiter looms into view ever larger and it's clear a crash is inevitable. Ride on a sungrazer Share the extremes experienced by a sungrazer comet, from the icy depths of space to a scorching encounter with the Sun. The Pleiades - sisters in the sky Take a closer look at a cluster of stars so young that it wasn't in the sky when dinosaurs roamed the Earth. The Orion Nebula Visit the birthplace of stars where new Suns are breaking out of a shroud of dust. The Andromeda Galaxy A spiral galaxy in the constellation Andromeda is the most distant thing you will ever see with your naked eye. Voyager 2 - encounters of the most distant kind Astride the Voyager 2 spacecraft, experience the excitement of speeding by the giant planets of the solar system. Conjunction of planets marks the millennium The planets Mars, Jupiter and Saturn make an unsual grouping in the sky in April 2000. Their conjunction is visible from anywhere in the world, but the exact view shown here is for London. See also: Sun, Moon and Earth The Planets Comets and asteroids Sights in the sky Spaceflight