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Discover the most memorable events in the history of our solar system. Travel to the surface of these dynamic worlds to witness the moments of high drama tha...
The solar system is located in one of the spiral arms of the Milky Way galaxy. It was born about 4.5 billion years ago when a cloud of interstellar gas and dust collapsed. Most of the material was pulled toward a central point: nearly all of the solar system’s mass—99.8%—is in the Sun.
Visualize orbits, relative positions and movements of the Solar System objects in an interactive 3D Solar System viewer and simulator. We use cookies to deliver essential features and to measure their performance.
Planet classification. There are four main categories of classifications when determining the type of celestial body an object is. These classifications are: terrestrial planets ( Mercury, Venus, Earth, and Mars ), gas giants ( Jupiter and Saturn ), ice giants ( Uranus and Neptune ), and dwarf planets ( Pluto, Eris, Haumea, and Makemake ).
Episode guide. 1. A Moment in the Sun - The Terrestrial Planets. The first episode traces the development of the four rocky worlds closest to the Sun: Mercury, Venus, Earth and Mars. Born together, they battled the unbelievable violence of the early solar system to become stable planets. 2. The Two Sisters - Earth & Mars. For millions of years ...
The solar system consists of the Sun; the eight official planets, at least three “dwarf planets”, more than 130 satellites of the planets, a large number of small bodies (the comets and asteroids), and the interplanetary medium. (There are probably also many more planetary satellites that have not yet been discovered.)
The Sun's gravity holds the solar system together, keeping everything – from the biggest planets to the smallest particles of debris – in its orbit. The connection and interactions between the Sun and Earth drive the seasons, ocean currents, weather, climate, radiation belts and auroras. Though it is special to us, there are billions of ...
