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  • In Depth | Ganymede – NASA Solar System Exploration
    Formation Ganymede and Jupiter’s other large moons (Io, Europa, and Callisto) likely formed from leftover material after Jupiter condensed out of the initial cloud of gas and dust surrounding the Sun, early in the history of our solar system Ganymede is likely about the same age as the rest of the solar system – about 4 5 billion years old
  • In Depth | Europa – NASA Solar System Exploration
    Formation Jupiter’s large Galilean moons – Io, Europa, Ganymede, and Callisto – likely formed out of leftover material after Jupiter condensed from the initial cloud of gas and dust surrounding the sun, early in the history of the solar system
  • Planet Compare – NASA Solar System Exploration
    NASA’s real-time science encyclopedia of deep space exploration Our scientists and far-ranging robots explore the wild frontiers of our solar system
  • galileo0302. qxd - NASA Solar System Exploration
    Galileo also returned information about thunderstorms in Jupiter's atmos-phere during this extended mission The spacecraft is exposed to harsh radiation from Jupiter's radiation belts whenever it comes near the planet, so examina-tion of Io, closest in of Jupiter's four major moons, was saved until after the Europa flybys
  • juno_solarpower_infographic - NASA Solar System Exploration
    NASA’s mission to moon Europa may be the first to use such technology Juno surpassed Rosetta as the most distant solar-powered spacecraft while on its way to Jupiter in January 2016 Rosetta was designed to go to the asteroid belt, but its solar panels took it much farther: 5 29 AU, 490 million miles (790 million km ) from the sun
  • In Depth | Our Solar System – NASA Solar System Exploration
    The planetary system we call home is located in an outer spiral arm of the Milky Way galaxy Our solar system consists of our star, the Sun, and everything bound to it by gravity – the planets Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune; dwarf planets such as Pluto; dozens of moons; and millions of asteroids, comets, and meteoroids Beyond our own solar system, there
  • Juno Mission to Jupiter - NASA Solar System Exploration
    Juno Mission to Jupiter With the exception of the sun, Jupiter is the most dominant object in the solar system Because of its enormous size and the fact that it was likely the first of the planets to form, it has profoundly influenced the formation and evolution of the other bodies that orbit our star NASA’s Juno mission will allow us to examine this gas giant planet from its innermost
  • In Depth | Callisto – NASA Solar System Exploration
    Formation Scientists think Callisto and Jupiter’s other satellites formed in the disk of materials left over from Jupiter’s formation Surface Callisto’s rocky, icy surface is the oldest and most heavily cratered in our solar system The surface is about 4 billion years old and it’s been pummeled, likely by comets and asteroids
  • Enceladus, Moon of Saturn - NASA Solar System Exploration
    - noes on Jupiter’s moon Io A dramatic plume of jets sprays water ice and gas out from the interior at many locations along the famed “tiger stripes” at the south pole Cassini mission data have provided evidence for at least 100 distinct geysers erupting on Enceladus All of this activity, plus clues hidden in the moon’s gravity, indicates that the moon’s interior harbors a liquid
  • Jupiter - NASA Solar System Exploration
    Jupiter is the fifth planet from the Sun, and the largest in the solar system – more than twice as massive as the other planets combined





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