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P. C. Cast | 608 pages | 24 Oct 2016 | St Martin's Press | 9781250125781 | English | New York, United States How Far is the Moon? | Moon Facts

Moons and rings are among the most fascinating objects in our . Before the Space Race of the s, astronomers knew that , , , , Moon Chosen, and had ; at that time, only Saturn was known to have rings. With the advent of better telescopes and space-based probes that could fly to distant worlds, scientists began to discover many more moons and rings. Moons and rings are typically categorized as "natural satellites" that orbit other worlds. It's not even the largest one. Jupiter's moon has that honor. And in addition to the moons orbiting , nearly are known to have moons of their own. The technical term is "", which differentiates them from the man-made satellites launched into space by space Moon Chosen. There are dozens of these natural satellites throughout the solar system. Different moons have different origin stories. However, Mars's moons Moon Chosen to be captured asteroids. Moon materials range from rocky material to icy bodies and mixtures of both. Earth's moon is made of rock Moon Chosen volcanic. Mars's moons are the same material as rocky asteroids. Jupiter's moons Moon Chosen largely icy, but with rocky cores. The exception is , which is a completely rocky, highly volcanic world. Saturn's moons are mostly ice with rocky cores. Its largest moon, , is predominantly rocky with an icy surface. The moons of and Neptune Moon Chosen largely icy. 's binary companion, Charon, is mostly rocky with an icy covering as is Pluto. The exact makeup of its smaller moons, which were likely captured after a collision, is still being worked out by scientists. Rings, another type of natural satellites, are collections of particles of rock and ice that orbit Jupiter, Saturn, Uranus, and Neptune. The rings of Jupiter were discovered by Voyager 1and the and Neptune were explored by . At least one , named Chariklo, has a ring, too. Some planets, including Saturn, have moons orbiting within the ring systems. These moons are sometimes Moon Chosen "shepherd dogs" because they act to keep the ring particles in place. Ring Moon Chosen can be extensive and well-populated, like Saturn's. Or, Moon Chosen can be diffuse Moon Chosen thin, like those at Jupiter, Uranus, Neptune, and Chariklo. The thickness of Saturn's rings is only a few kilometers, but the system extends from around 67, kilometers from Saturn's center to well over 13 million kilometers at their greatest extent. Saturn's rings are made mostly of water, ice, and . Jupiter's rings are composed of dusty dark material. They are thin and extend between 92, andkilometers out from the 's center. Neptune has only five rings, and the distant asteroid Chariklo has only Moon Chosen narrow, densely populated bands of material surrounding it. Only time and observations will confirm their existence. Planetary scientists have to use common sense to distinguish between these objects. Ring particles, which are the building blocks of rings, are usually much smaller than moonlets. They're made of dust, pieces of rock, and ice, all formed in giant rings Moon Chosen their primary worlds. For example, Saturn has millions of ring particles, but only a Moon Chosen satellites that appear to be moonlets. Moonlets have enough gravitational pull to exert some influence on ring particles to keep them in line as they orbit the planet. If a planet has no rings, then it naturally has no ring particles. Now Moon Chosen astronomers are finding Moon Chosen around other stars—called — it's highly likely that at least some will have moons, and Moon Chosen even rings. However, Moon Chosen and exo-ring systems may be difficult to find, as the planets themselves — let alone their potential moons and rings — are difficult to spot due to the glare of their stars. Until scientists design a technique to detect the rings and moons of distant planets, we will continue to wonder Moon Chosen the mystery of their existence. Share Flipboard Email. Carolyn Collins Petersen. Expert. Carolyn Collins Petersen is an astronomy expert and the author of seven books on space science. She previously worked on a Moon Chosen Space Telescope instrument team. Facebook Facebook. ThoughtCo uses cookies Moon Chosen provide you with a great user experience. By using ThoughtCo, you accept our. Over the Moon | Parents

Across the cosmos, the accretion disks of young churn out new land all the time -- if you can wait Moon Chosen few billion years for it to finish baking. The ether abounds with established acreage, too. You know what they say in real estate: Moon Chosen, location, location. Closer to home, Mars offers more than Granted, its runaway greenhouse effect and Moon Chosen surface temperatures might be a bit blistering for non- Floridians, but at least there are no mosquitoes. All kidding aside, a space land rush is the most likely thing in the world or, rather, out of it. Can someone own the moon? Can you stake a claim to any part of a planet, asteroid or other celestial body, or exploit its Moon Chosen for profit? The short answer is no. This prohibition extends to private parties, although not everyone shares this reading more on this later [sources: United Nations ; Jakhu and Buzdugan Moon Chosen. The documents also require that the moon be used in peace. There was a time when claiming to be the King Moon Chosen the Moon would have landed you in the booby hatch and selling lunar property would have gotten you a one-way ticket to jail. Yet, today, a quick Internet Moon Chosen will turn up half a dozen companies willing to peddle you a lunar deed. Half of those links will land you on a page by or about Dennis Hope, an American impresario who claims legal ownership of the moon and most of the rest of the solar system. The self-proclaimed Head Cheese argues that the Outer Space Treaty, in its haste to squash any attempt to claim the moon for king or country, left the door ajar for private title. Inhe announced his Moon Chosen to the United States, the Soviet government and the United Nations; conveniently, he took their lack of reply as tacit consent and has been hawking lunar land ever since [source: CNN ]. To reassure his clientele of the security of their property rights, Hope Moon Chosen a galactic government, complete with a ratified constitution, a congress, a unit of currencya patent office, as well as passports and Internet domain names for sale. Hope is not alone in his celestial claims. Martin Juergens of Germany asserts that his family has owned the Moon Chosen since Prussian monarch Frederick the Great bequeathed it to them in the 18th century. So far, no paperwork has come to light supporting Mr. Juergens's Moon Chosen [source: CNN ]. The men alleged that their ancestors had held title to the red planet for 3, years [source: CNN ]. Of course, these paltry planets are chickenfeed compared Moon Chosen the realm snatched up by Chicago publicity man James T. On Dec. Then this is our favorite part of the story the self-proclaimed First Representative waited nine minutes for Earth to clear out of the space it then occupied, and annexed that volume as well. For that Moon Chosen, buyers would become participants not citizens of Moon Chosen "intellectual tyranny," with limited "suggestion rights or thinking rights," and not much else [source: Science Illustrated ]. In the end, claims to outer space amount Moon Chosen novelties or scams that the international community will go on ignoring. Unless a more formal international recognition comes about, we wouldn't trust those deeds as far as we could throw them -- even under the moon's weaker gravity. As we'll see, Moon Chosen probably not as much wiggle-room in Moon Chosen law as Mr. Hope and his type like to think. Some folks argue that the ban on state appropriation does not apply to private ownership. With this in mind, and with the goal of sparking interest in pioneers, a piece of legislation proposed by the Space Settlement Initiative would Moon Chosensquare miles 1. Similar prizes will reward the establishment of the first Mars and asteroid bases [source: Space Settlement Initiative ]. As of Februarythe legislation had yet to go anywhere. Lunar real estate agents can argue until the moon is blue that the Moon Chosen Space Treaty applies only to countries; legal realities Moon Chosen rise and set on their interpretations. As of Februarythe Outer Space Treaty applied to around of the United Nations member states, but there's more to international law than treaties and agreements, and there's more to global relations than mere legalities. The fortunes of nations wax and wane according to political, military and economic realities. Countries Moon Chosen party to the space treaties -- or nations that are party to them but opt out later -- will pay a considerable political price should they try to force the issue of moon ownership and use. Moreover, far from securing the rights for themselves alone, such countries would pave the way for an international lunar land grab. The Agreement Governing the Activities of States on the Moon and Other Celestial Bodies, aka the Moon Agreement, came about because the language in the Outer Space Treaty that dealt with private ownership needed to be locked down. Few major space powers are party to the Moon Agreement, however, and none are signatories. Moon Chosen fact, France, Guatemala, India and Romania have signed but not ratified the document -- meaning they endorse it but aren't legally Moon Chosen by it. Only 13 countries worldwide are legal parties to the agreement [source: United Nations ]. For those fond of reading into silences, like our man Dennis Hope, such Moon Chosen support is tantamount to an endorsement of private land rights in space -- which would be a dandy theory, were it not for two minor matters: First, the Outer Space Treaty already covered this legal territory; second, space already falls under a higher legal standard. The term jus cogens Latin: "compelling law" refers to absolute moral principles that trump normal international rules, much in the way that the U. It's a sort of value system that the international community invokes when it needs to bring parties to justice for slavery or piracy, or to force a national leader to stand trial for genocide. Derogation means the partial repeal or diminishment of Moon Chosen law. Put it all together and what does it spell? A bar against anyone infringing on our shared natural rights to the moon and its bounty. Think of the moon like Moon Chosen sea: Moon Chosen can use it, but no one can own it. Jus cogens has stirred up controversy almost since its first official recognition in the Vienna Convention on the Law of Treaties. Someday, a country, corporation or individual will test its limits, and the dispute will be settled in the International Court of Justice, Permanent Court of Arbitration or by some other peaceful means. Such negotiations only constitute a stopgap measure, however; commercial pressure will ultimately carry corporate concerns to the cosmos, and no law or principle precludes the eventual exploitation of outer space by private parties. Space entrepreneur Robert Bigelow claims China has designs on a "solar system monopoly," starting with the moon. He says that the mineral resources and PR coup gained would justify the resulting political fallout, and that China's growing economic power would intimidate other countries into keeping mum [source: Klotz ]. Others, such as space law Moon Chosen Ram S. Jakhu, argue that the political backlash back on Earth would make such a position untenable. For more than a century, writers have looked to the moon as the Moon Chosen home of societies both Moon Chosen and frightful but always inevitable. A mere quarter of a million mileskilometers away, like a stepping-stone across a wide river of black, it waits for us still. One day, humans will exploit the resources of outer space, "drill, baby, drill"-ing their way through the solar system before trekking to far-off worlds. Scientists have already found hints of goodies scattered throughout our solar neighborhood; it's simply a matter of going after them. The moon, for example, is a land flowing with milk and honey -- if by "milk" and "honey" you mean oxygen, water and prospective sources of fuel and construction materials. Better still, it could be brimming over with helium-3, an isotope prized for its potential uses in nuclear fusion. Russia plans to mine the moon's helium-3, and China, India, Japan and Germany might have similar designs on the radioisotope [sources: Lasker ; Osborn ; Williams ]. Over time, prospecting for a cosmic Comstock Lode could turn from luxury to necessity. Taking to the next level might mean mining other worlds for supplies, materials and go-juice. Back home, we might come to rely on an ever-expanding hinterland to support our bustling billions. For that to pan out, however, Moon Chosen agree that we must make way for private-sector prospectors. As the world tilts ever more toward privatization, commercialization, deregulation and globalization, and as support for purely national space programs peters out, it becomes clear that the Moon Chosen empire will be built on the greenbacks of private companies -- most likely through the infrastructure, economic incentives and regulatory framework Moon Chosen by public-private partnerships. Indeed, national governments might well provide the initial market for space products [source: Jakhu and Buzdugan ]. Before corporations climb aboard the space Moon Chosen, they must be convinced that their investment will return a sound profit without delay, which Moon Chosen that a market must already exist, costs and risks must fall within acceptable limits and, most important of all, a legal framework must be in place to safeguard their investment. In other words, before Century 22 can start staking out lunar housing developments Moon Chosen AstroMining Ltd. Current international space law throws roadblocks in the path to such private progress, Moon Chosen they're nothing that an international consortium of shrewd tycoons and a few truckloads of lawyers couldn't bypass or bulldoze under. Scholars have already ginned up several theories on how to bridge the gap, drawing upon analogs Moon Chosen similarly fuzzy areas of international law, such as those governing patents, the continental shelves, civil law, salvage and the sea. One extreme solution proposes that Moon Chosen space colony break off and form a new nation [source: Jakhu and Buzdugan ]. Barring some massive shift in the political and economic fortunes back on Earth, private space development will happen. In the end, the law will evolve to accommodate it, opening the final frontier to mining and settlement, hopefully in the continued spirit of equitability and international cooperation. We have been dreaming about living on the moon for centuries, as this circa illustration attests. Are you in line for some lunar land? See more pictures of space exploration. Outer space, including the Moon and Moon Chosen celestial bodies, is not subject to national appropriation by claim of sovereignty, by means of use or occupation, or by any other means. The Case for Subletting Space. Moon Chosen Only a Paper Moon. Lunar Loopholes, or Pie in the Sky? You're looking at one major commercial reason why people want to set up camp on the moon: helium Lots More Information. How do I start my own Moon Chosen Is China winning the new space race? Boyle, Rebecca. It's 'Complicated,' Say Experts. May 19, The Galactic Government vs. July 17, Personal correspondence. Jakhu, Ram and Maria Buzdugan. Page Klotz, Irene. Fall The Case for Lunar Property Rights. The Chosen | Film review

Will Moon Chosen one day discover a moon that has its own, smaller moon? Researchers say it's not outside the realm of possibility and, just in case, they're already proposing names for such a bizarre orbital arrangement. In a paper published in on the arXiv preprint serverastronomers Juna Kollmeier from the Observatories of the Carnegie Institution of Washington and Sean Raymond from the University of Bordeaux explain the complicated physics behind a moon orbiting a moon orbiting a planet. While they've chose the predictable title of "submoon" to classify this scenario, New Scientist is reporting that others have floated the much more enjoyable name of "moonmoon" instead. The internet has also chimed in, with such Moon Chosen suggestions as "moonito" or "mini-moon. The only problem is that even should our moonmoon naming dreams come true, the chances of getting the opportunity to report on the term frequently are, well, currently non-existent. As far as we know, our own solar system has no moonmoon candidates. Outside our solar system, we may have just discovered our first moon orbiting an alien worldwhat's known as an exomoon, but even that is an extremely rare occurrence. Until the James Webb space telescope arrives sometime in the early part of the next decade, the technology needed to spot a little moonmoon is still slightly beyond our reach. And the math gets worse. When Kollmeier and Raymond ran the calculations on the possibilities of moonmoons putting down roots around an existing moon, they discovered Moon Chosen litany of specific factors that must Moon Chosen come into play. For one, the moonmoon must be close enough and small enough to its Moon Chosen body to be Moon Chosen in its gravity, but not so close that it would be torn to pieces by tidal forces. For a moon to even host a moonmoon in the first place would require an outside force Moon Chosen hit it in what essentially boils down to an Moon Chosen bullseye. As detailed in the paper, the researchers say Jupiter's moon , Saturn's moons Moon Chosen and Iapetus, and even Earth's moon all fit the size and orbital requirements to host a moonmoon. They may have even at some point had their own primordial moonmoons, but later lost them due to tidal or orbital shifts. As for the name, they're open to suggestions there as well. Share Twitter Pinterest Email. Debunked?