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5… 4…3…2…1… We have off! lift our solarsystem! Are you ready, cosmic cadets? are justaboutcomplete for your mission:to explore It’s aclearday at NGKidsSpace HQandpreparations

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enough to meltlead! around 480 temperature surface Its is planets, except Uranus. to theother direction Venus spinsintheopposite Cosmic fact covering itssurface. volcanoes anddeepvalleys you’re amazed by thegiant But on theplanet–uh-oh! may beacidrain storms clouds, whichmeansthere of poisonoussulphuricacid Venus. You seeathicklayer from theMoon…it’sapart inthesky brightest object Your stop? next The 2. Venus o C and is hot C andishot 3. Earth neighbour inspace! 27.3 days andisournearest every MoonorbitsEarth Our Cosmic fact been found… sofar! where livingthingshave from uphere. istheonly Earth –that’ssurface why itlooksblue Water covers mostoftheEarth’s away?the Sun,149,600,000km year to travel for Earth round youDid ittakes know awhole covers itssurface. dust (like rust)that ofthe iron-oxidebecause of Marsisred The surface Cosmic fact window? Checkoutthecomet! that flyingfireball outside your the size ofMount Everest. What’s high–three times which is27km our solarsystem, OlympusMons, Mars hasthelargest volcano in sandstorms andcolossal craters. atLooking Marsyou seeblasting Here you are at thered planet. 4. Mars 5. Ceres (Xena). planets –Ceres, andEris of eight planetsandthree dwarf solarsystemOur isnow madeup Cosmic fact but it’s timeto move on! in shape. would It begreat to visit, orbits thesunandisalmostround around itsorbit, althoughitstill itdoesn’tBecause ‘clear’ thearea just asaplanet, like theothers? planet, Ceres. Why isn’t itknown It’s timeto visityour firstdwarf

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started 340years ago! started is astorm ontheplanetthat Jupiter’s famousGreat RedSpot Cosmic fact astronomer in1610. Galileo largest were discovered by the spot its16moons–thefour fit insideit!As you gopast, you could more than1,300Earths of alltheplanets. It’s sobigthat planet. It’s Jupiter –thelargest Wow! Look at thesize ofthat

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OTHER 7. Saturn than Earth! Saturn is855timesbigger Cosmic fact – anexploding star! your eyes. mustbeasupernova It light. You duckdown andclose year. Suddenlythere’s ablinding eye for around 10months ofthe This planetisvisibleto thenaked notice they’re madeofrock andice. close to itsfamousringsthat you largest oftheplanets. You’re so You’re over Saturnnow, thesecond C thin rings. Uranus moonsand11 has27known Cosmic fact for 21years! the Sun,anditsfour seasons eachlast side. Uranus takes 84years to orbit space rock may have pusheditonits – it’s Uranus! thinkagiant Scientists that seemsto have beenknocked over onyourNext journey you seeaplanet LEARLY 8. Uranus J UST

S HOWED watch out! into 8km theair–better throw updarkmaterial geysers onitssurface is Triton, andspouting Neptune’s largest moon Cosmic fact planet haslotsgoingon! around Neptune–this rings and13moons away. There are sixknown for afew years, thenfade ofthestorms last Some at speedsof1,200kmph! Huge storms are goingby You race onto Neptune. 9. Neptune U S N EW EW Nix, Kerberos andHydra. Pluto hasfiveknown moons-, Styx, Cosmic fact (Xena). It’s almosttimeto land! planet, alongwithCeresas adwarf andEris planets inoursolarsystem. It’s now known was strippedofitstitle, leaving justeight orbit overlapped withNeptune’s, poorPluto asaplanet,known butnotnow. its Because Your stop next isPluto, whichusedto be 10. Pluto P LANETS – LANETS and now Xena! 2003 UB313,Lila names, including Eris hashadmany Cosmic fact has beenawesome! here, butthejourney taken awhileto get from has theSun.It distant object known Eris isthemost in oursolarsystem. planet largest dwarf destination, Eris–the on to your last behind andzoom You leave Pluto

11. Eris (Xena) about 4.6 billion billion 4.6 about

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Saturn and Sun c Getty Images UK. Other planets, courtesy of NASA. Planets are not shown to scale.