Is it there ocean on Jupiter's moon Europe?
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Yes\n\nThere is good evidence that Europa hides a liquid ocean many kilometres below its icy crust. \n\nScientists would like to one day explore this ocean for signs of life, but even if a lander could reach the moon, the practical problems of drilling through the vast ice sheet are immense. \n\n\nA team from University of Arizona, Tucson, has a reasonable account of the cycloidal lines stretching hundreds of miles across the southern polar region of Europa. They believe the bulge of a 100-foot tide cracks the ice in long curves as stress vectors rotate during the Europan day (about 3.5 Earth days.) New segments 40-120 miles long would form when the cycle repeats on successive days, making a chain of broken curves. The team estimates that the ocean on Europa is about 100 miles deep. \n\nAlso it has been found out that ,Callisto, another of Jupiter's moons, may have an underground liquid ocean...
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Because although the moon is as big as a planet, it does not have the characteristics of a planet. Jupiter's moon is a moon because it displays characteristics of a moon, like orbiting Jupiter and being stuck into Juptier's gravational pull.
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he Very Large Telescope (VLT) has caught a remarkable image of the planet Uranus circled by some of its moons.\n\nThe rings of the planet - which is 3,000 million kilometres away from Earth - are clearly displayed in the image.\n\nThe rings are almost undetectable from Earth in visible light.\n\nThe VLT is located at the European Southern Observatory's Paranal Observatory in Chile.\n\nThe image was obtained in the near-infrared, and includes seven of the planet's moons.\n\nVLT\nVLT is based at Paranal in Chile\nTwo of the moons in the picture, Puck and Portia, were only found in the 1980s as the Voyager probe prepared for its flyby of the planet.\n\nUranus, which is at a distance from the Earth equivalent to 20 times the distance between the Earth and Sun, was first spotted by William Herschel in 1781.
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Berlin, February 24th, 2004. An entire "island" composed of trash has been discovered in the Pacific Ocean. It is as large as the Central Europe.\n\nAccording to the German magazine "Geo", plastic objects prevail among the trash. The "island" weights approximately three million tons in its entirety. This is six times greater than a number of natural plankton.\n\nScientists claim that the "island", situated between California and Hawaiian islands, forms circular ocean currents which now accumulate wastes by the shores of Japan and the US and bring it to the center of the Ocean.
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If we confine ourselves to only the surfaces of planets and minor bodies, the answer is virtually all of the surface area in our solar system has been mapped at least at some resolution. The Planetary Cartography Working Group has identified over 1.9 billion square kilometers of stable surfaces in the solar system, not including the atmospheric features of Jupiter, Saturn, Uranus and Neptune, and of this total, all but a few percent have been mapped at resolutions of 10 - 100 meters or lower. Some surfaces such as the Moon and the Earth, have been mapped at substantially higher resolution.\n\nThis means that there are very few surprises left for us to 'see for the first time' in this solar system. Now comes the hard job of geophysically and minerologically assaying these surfaces to determine their chemical composition and how they got to be the way they are!
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the mediterranean sea
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With over sixty three moons to date and growing, Jupiter has more moons than any other planet in the Solar system*.  In fact, Jupiter and its moons are often referred to as the Jovian system (Jove being an alternate name for Jupiter), and are almost more complex as a planetary system than the Solar system itself is.\n\nThe planet with the second most numerous moons is the planet Saturn.  If you would like more information on either the moons of Jupiter or Saturn, I would highly recommend searching through either nasa.gov, nineplanets.org (which can be a little dry but still has a lot of useful information), or solarviews.com.\n\n\n*By the way, there's only one "Solar system" since the name refers to the star in the center of our star system, which is properly named "Sol", and not "the Sun"... all other systems containing a star and planets would be properly referred to as either a planetary system or a star system, as they do not orbit the star Sol.
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I would say Europa and titan. Europa is unlike any other body in the solar system, it is not jupiters smallest moon rather the smallest of the galilean moons of jupiter with a diameter of 3100km. Its surface is among the brightest in the solar system, a consequence of sunlight reflecting off a relatively young icy crust. \n\nIts face is also among the smoothest, lacking the heavily cratered appearance characteristic of Callisto and Ganymede. Lines and cracks wrap the exterior. if you were to scale Europa down it would probably be a smooth as a billiard ball. Scientists believe that beneath Europa's icy surface lies a liquid ocean which has the possibility of harbouring life. Let me make myself clear, we're not talking about intelligent life, but rather life that could be very similar to what is found at the bottom of our oceans. \n\nEuropa has a very tenuous atmosphere which is mostly made up of oxygen. Unlike oxygen on Earth however, which is created as a byproduct of photosynthesis in plants, oxygen on Europa is likely to originate when charged particles from the Sun hit water molecules on Europa’s surface. The water molecules are broken into hydrogen and oxygen atoms, and sometimes recombine to form hydrogen and oxygen gas. This kind of environement would make it an ideal habitat for life and very interesting for exobiologists.\n\nTitan would also be extremely interesting to exobilogists.It is the only moon in our solar system with a very thick atmosphere and  like Earth's atmosphere, the atmosphere on Titan is mostly made up of nitrogen. Unlike Earth however it is inhospitable to life due to the lack of atmospheric oxygen and its extremely cold surface temperatures (-183 degrees Celsius) . \n\nAlong with nitrogen, Titan's atmosphere contains a significant amount of methane. The only thing missing for Titan is a little bit of heat. What we know for sure is that the sun is getting warmer by approximately 10% a year. What this means is that in the future, the sun will begin to warm the surface of Titan and therefore give it the possibility of giving birth to life. With the amount of methane in its atmosphere a fair amount of heat would become trapped as methane is a very powerful greenhouse gas.\n\nHope this has helped you out :)
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It is not yet known if Jupiter has a solid surface.  If it does, then the solid part of the planet can only make up a very small fraction of the volume of the planet.\n\nSaying that the Jupiter's atmosphere constitutes a "surface" (as some answerers have proposed) is not really correct in that one cannot point to a surface at which the atmosphere "ends".  Like Earth's atmosphere, Jupiter's atmosphere simply becomes more and more tenuous as one moves further from the planet (in an approximately exponentially decreasing fashion).  Picking a pressure at which the atmosphere "ends" is a arbitrary choice.
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Jupiter has 63 known natural satellites.
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hi, \n\nas i understand it, jupiter (and all the other gas giants, saturn uranus and neptune) don't really have a clear phase-separated surface, in the sense that earth/mars/moon do.\n\nthe interior structure of the planet is not well known, but it is believed that the atmosphere simply gets denser and denser as you go lower and lower, like fog that gets thicker and thicker until it's essentially liquid.  similarly as you go deeper yet, a smooth boundary between the liquid and solid is encountered.  however this has not really been directly confirmed.\n\nthe galileo mission to jupiter released a small probe, which descended into jupiter for 150 kilometers, until it was crushed by the high pressure of the atmosphere.\n\nhere are some resources that might help you out:\nhttp://nssdc.gsfc.nasa.gov/planetary/planets/jupiterpage.html\nhttp://nssdc.gsfc.nasa.gov/database/MasterCatalog?sc=1989-084E\n\ncheers!
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Yes it is true.Just watched a program on national geographic about the unknown deep blue of our oceans and seas.Space has had so many explorations now that we are closer to the outer limits of our solar system than ever before.
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The first ocean was the Iapetus Ocean or Sea. This was the water mass that surrounded the Rodinia land mass which is believed to be the first continent or super-continent.
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The reponse is related to plate tectonics. The earth crust is composed of a larger number of plates that float, very slowly of course, over the liquid interior. Continents therefore move relative to each other. When two plates meet, generally one moves under the other and it is here that we find mountains and volcanoes.\n\nWhat relation with oceans? Well, between some of the plates there is an upwelling of new magma, new crust. This is for instance the case in the middle of the Atlantic Ocean. The new crust needs room and pushes the plates on the left and right away: the Americas are moving to the west, while Europe and Africa are moving to the east. \n\nOceans (ah, at last!) are watermasses in which such upwelling of fresh crust takes place. An ocean therefore is partly in two or more different plates. On the other hand, seas are bodies of water that are on one continental plate only, or on two plates were no new crust is formed.\n\nHere is a pictures of the different continental plates:\n http://en.wikipedia.org/wiki/Image:Plates_tect2_en.svg
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I learned it's the Tethys Sea, but Wiki has it as an ocean.  My second link calls it the Tethys Sea.
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From our small world we have gazed upon the cosmic ocean for thousands of years. Ancient astronomers observed points of light that appeared to move among the stars. They called these objects planets, meaning wanderers, and named them after Roman deities - Jupiter, king of the gods; Mars, the god of war; Mercury, messenger of the gods; Venus, the god of love and beauty, and Saturn, father of Jupiter and god of agriculture. The stargazers also observed comets with sparkling tails, and meteors or shooting stars apparently falling from the sky.\n\nSince the invention of the telescope, three more planets have been discovered in our solar system: Uranus (1781), Neptune (1846), and Pluto (1930). In addition, there are thousands of small bodies such as asteroids and comets. Most of the asteroids orbit in a region between the orbits of Mars and Jupiter, while the home of comets lies far beyond the orbit of Pluto, in the Oort Cloud.\n\nThe four planets closest to the Sun - Mercury, Venus, Earth, and Mars - are called the terrestrial planets because they have solid rocky surfaces. The four large planets beyond the orbit of Mars - Jupiter, Saturn, Uranus, and Neptune - are called gas giants. Tiny, distant, Pluto has a solid but icier surface than the terrestrial planets.\n\nNearly every planet - and some of the moons - has an atmosphere. Earth's atmosphere is primarily nitrogen and oxygen. Venus has a thick atmosphere of carbon dioxide, with traces of poisonous gases such as sulfur dioxide. Mars' carbon dioxide atmosphere is extremely thin. Jupiter, Saturn, Uranus, and Neptune are primarily hydrogen and helium. When Pluto is near the Sun, it has a thin atmosphere, but when Pluto travels to the outer regions of its orbit, the atmosphere freezes and collapses to the planet's surface. In that way, Pluto acts like a comet.\n\nThere are 154 known natural satellites (also called moons) in orbit around the various planets in our solar system, ranging from bodies larger than our own Moon to small pieces of debris. Many of these were discovered by planetary spacecraft. Some of these have moons have atmospheres (Saturn's Titan); some even have magnetic fields (Jupiter's Ganymede). Jupiter's moon Io is the most volcanically active body in the solar system. An ocean may lie beneath the frozen crust of Jupiter's moon Europa, while images of Jupiter's moon Ganymede show historical motion of icy crustal plates. Some planetary moons may actually be asteroids that were captured by a planet's gravity. The captured asteroids presently counted as moons may include Phobos and Deimos, several satellites of Jupiter, Saturn's Phoebe, many of Uranus' new satellites, and possibly Neptune's Nereid.\n\nFrom 1610 to 1977, Saturn was thought to be the only planet with rings. We now know that Jupiter, Uranus, and Neptune also have ring systems, although Saturn's is by far the largest. Particles in these ring systems range in size from dust to boulders to house sized, and may be rocky and/or icy.\n\nMost of the planets also have magnetic fields which extend into space and form a magnetosphere around each planet. These magnetospheres rotate with the planet, sweeping charged particles with them. The Sun has a magnetic field, the heliosphere, which envelops our entire solar system.\n\nAncient astronomers believed that the Earth was the center of the Universe, and that the Sun and all the other stars revolved around the Earth. Copernicus proved that Earth and the other planets in our solar system orbit our Sun. Little by little, we are charting the Universe, and an obvious question arises: Are there other planets where life might exist? Only recently have astronomers had the tools to indirectly detect large planets around other stars in nearby solar systems.\n\nSo basically the inner plantes have solid ground. The outer are made of gas except pluto.\n-good luck
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Jupiter has 63 known satellites.