Anyone know about another planet just discovered beyond Pluto & that other new planet?
408062
yeah i think they might be because what are the chance that we are the ONLY ones , and the real name for Xena is A20031 i think . but their still not sure if Pluto a planet now but that's for scientist to discover. It's only a matter of time before we go out to another arm of the milky way and find the one planet in that solar system ( were not the only solar system ya know ) that has life.
427364
there hasn't been any found yet.... but... the possibility of life on other planets is very  high....  :)
1071483
No, NOT Sedna!  (This is how bad information just multiplies.)\n\nSedna is smaller than Pluto, and unlikely to be classified a planet.  If anything will be classified as our 10th planet it is 2003 UB313, which is larger than Pluto.\n\nBut until then, we only have 9 official planets.
124939
An object larger than pluto has been discovered but it will be up to the International Astronomical Union (IAU) to give it official planet status and to name it.
181678
its probably half way to pluto by now. you could write the plutonians and ask them to email it back to you, this may take a few days though.
843663
HOW MANY ARE KNOWN AT THE MOMENT?:\n\n8 in our solar system + 3 dwarf planets\n\n(Planets: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus & Neptune) (Dwarf Planets: 1 Ceres, 134340 Pluto, 136199 Eris)\n\nAND IN THE MILKY WAY GALAXY?\n\nSince pulsar planets were discovered in 1992 and 51 Pegasi b was discovered in 1995 we now know a total of 209 orbiting other stars:\n\nDetected by radial velocity method: 169 planetary systems, 197 planets, 20 multiple planet systems. \n\nDetected by microlensing: 4 planets. \n\nDetected by direct imaging: 4 planets. \n\nPulsar planets: 2 planetary systems, 4 planets, 1 multiple planet system. \n\nSee the full list in the Encyclopaedia of Exoplanets (third link) published and maintained by the Paris Observatory. Appropriately as it was the work of Urbain LeVerrier at that observatory that led to the discovery of Neptune in 1846.\n\nWHAT OF THE FUTURE?\n\nImproved detection rates can be expected in the coming years. Principally from CoRoT and the Kepler Mission: which being space-based will avoid the problems the earth's atmosphere creates for ground-based telescopes,\n\nCOROT:\n\nOn 15th November 2006 the CoRoT spacecraft arrived at the Baikonour launch base,\n\nCOROT (COnvection ROtation and planetary Transits) is a space mission approved and led by the French Space Agency (CNES) in conjunction with the European Space Agency and other international partners. The primary objective of COROT will be to search for extrasolar planets, particularly those of large terrestrial size. It is scheduled for launch on December 22, 2006, and will be the first mission of its kind.\n\nCOROT consists of a 27 cm in diameter afocal telescope with an array of spectroscopic detectors. The satellite has a launch mass of 630 kg, is 4.10 metres long, 1.984 metres in diameter and powered by two solar panels. \n\nA Russian rocket will lift the satellite into a circular polar orbit with an altitude of 827 km. Over its planned 2½ years mission it will observe perpendicular to its orbital plane meaning there will be no Earth occultations, allowing 150 days of continuous observing. During the northern Summer it will observe in an area around Serpens Cauda and during the Winter it will observe in Monoceros. Between this observing periods for 30 days, COROT will observe 5 other patches of the sky.\n\nThe probe will monitor the brightness of stars, watching for the slight dimming that happens in regular intervals when planets transit their primary. COROT will be sensitive enough to detect rocky planets, though only those several times larger than Earth; it is also expected to discover new gas giants, which comprise almost all of the known extrasolar planets.\n\nCOROT will also undertake asteroseismology. It can detect luminosity variations associated with acoustic pulsations of stars. This phenomenon allows calculation of a star's precise mass, age and chemical composition and will aid in comparisons between the sun and other stars.\n\nIn each field of view there will be one main target star for the asteroseismology as well as up to nine other targets. Simultaneously, it will be recording the brightness of 12,000 stars brighter than apparent magnitude 15.5 for the extrasolar planet study. It is expected that a few dozen planets will be found.\n\nTHE KEPLER MISSION\n\nThe scientific objective of the Kepler Mission, due for launch in 2008, is to explore the structure and diversity of planetary systems. This is achieved by surveying a large sample of stars to achieve several goals:\n\nDetermine how many terrestrial and larger planets there are in or near the habitable zone of a wide variety of spectral types of stars \n\nDetermine the range of sizes and shapes of the orbits of these planets \n\nEstimate how many planets there are in multiple-star systems \n\nDetermine the range of orbit size, brightness, size, mass and density of short-period giant planets \n\nIdentify additional members of each discovered planetar
871143
Largest known to date is the "puffy planet" HAT-P-1b orbiting the sunlike star ADS 16402 B, one of a binary pair of G0 V stars 450 light yeard away, in the constellation Lacerta. Our sun is of spectral class G2 V i.e. a little cooler than ADS 16402 B.\n\nHAT-P-1b has a radius of 1.36 x the radius of Jupiter. \n\nIt was discovered on 13 September 2006 and is 450 light years away. It has the lowest density of any known extrasolar planet. It also has the name Krais.\n\nIt was announced as follows:\n\n"Using small automated telescopes in Arizona and Hawaii, the HATNet project has detected an object transiting one member of the double star system ADS 16402 AB. This system is a pair of G0 main-sequence stars with age about 3 billion years, at a distance of ~139 parsecs and projected separation of ~1550 AU. The transit signal has a period of 4.46529 days."\n\nNote: Only the radii of transiting planets are known.
1043732
First of all, it is not galaxy you are talking about, it is solar system. Secondly, a lot of people here are saying why ask such a stupid question. What most of them probably don't know is that while pluto is the smallest of our "officially classified" planets it has come to light in recent months that we may have more planets. \n\nThe debate has been raging on in the space exploration community that recently discovered bodies past pluto may actually be planets in our system as well. They are also saying they may take pluto off the official planet list because it is looking more and more like a captured asteroid compared to these new planets.\n\nFor those who want to read more about these new planets, do a search for the planet Xena (which is the temporary code name for the new planet). \n\nIn short, Pluto is "currently" the right answer but if it is removed from the list, then mercury will be the smallest planet.\n\nHope this helps!
375309
Right now there are officially 9 planets. Depending on what we decide in the next year or so that number will change to 8, stay 9, go to 10, or even larger.  \n\nAn object larger than Pluto (2003 UB313) has been found, but we have not granted it official status as a planet. Don't expect this issue to be resolved any time soon, we've more or less "tabled" the issue until our general meeting in August, but there are a number of scientists in the IAU's Division of Planetary Sciences discussing this issue.\n\nRight now the newer astronomy textbooks generally have a section on "the planet controversy," and spend some time talking about all these newly discovered icy bodies.  They are all part of the Kuiper Belt, just like Pluto, and new books seem to be grabbing onto teaching about these objects much like the asteroids, addressing them as the left-overs of the formation of the solar system.  The Cosmic Perspective (a fairly decent intro astro textbook) for example has a chapter on "Remnants of Rock and Ice: Asteroids, Comets and Pluto"
572044
Yes UB313 (which was not discovered last year, but in 2003).\n\nBe careful calling it a planet, however.  Web sites and journalists love to talk about the "tenth planet" because it sounds more exciting that "yet another trans-neptunian object (TNO)."  However, astronomers (the International Astronomical Union, or IAU) do not officially recognize this as a "planet."  This may change later this year (in September) when the IAU is scheduled to come up with a more solid definition of what a "planet" is (how big, what orbit, etc.) ... but until then, you sound more like a real astronomer if you don't call it a "planet."
1000650
i don't know about bigger but yeah they found another solar system
195029
Yes, and the people who found it honestly want to have it called Xena.\n\nOn July 29, 2005, a Trans-Neptunian object called 2003 UB313 was announced, which on the basis of its magnitude and simple albedo considerations is assumed to be larger than Pluto. This caused its discoverers to call it the "10th planet" of the solar system, although there is no consensus yet on whether to call it a planet, and others consider the new discovery to be the strongest argument yet for demoting Pluto to the status of a minor planet.\n\nBut until then, it's being refered to as Planet X.
786149
PLUTO HAS NOT GONE ANYWHERE. IT IS STILL REVOLVING BUT THE SCIENTIST HAVE PROVED THAT PLUTO IS NOT A PLANET BECAUSE PLUTO IS THE OBJECT IN KUPIER BELT. THE NEW PLANETS ARE CERES, XENA & CHARON . FIRST WE SAY THE NAME OF PLANET LIKE THIS mY VERY EDUCATED MOTHER JUST SHOW US THE NINE PLANET.  NOW, THIS HAS BEEN PROVED WRONG. THE KNEW SYSTEM IS GIVEN BELOW. THIS INCLUDE 11 PLANET.\n\nMERCURY\nVENUS\nEARTH\nMARS\nCERES\nJUPITER\nSATURN\nURANUS\nNEPTUNE\nXENA\nCHARON
753879
Astronomers say they have discovered what appears to be an entirely new kind of planet, an extra-large gas giant unlike any known world in our solar system or beyond. \n\n"This questions our understanding of how giant planets are formed and evolve," said Robert Noyes, a senior physicist at the Harvard-Smithsonian Center for Astrophysics (CfA). \n\n\nThe planet, dubbed HAT-P-1, is located some 450 light-years from Earth in the constellation Lacerta. \n\nIt is the largest planet ever discovered and boasts a radius nearly 1.4 times larger than Jupiter's. \n\nHAT-P-1 is also the least dense of all known planets. \n\n"This planet is about one quarter the density of water," said Gaspar Bakos, a Hubble fellow at CfA. \n\n"In other words, it's lighter than a giant ball of cork. Just like Saturn, it would float in a bathtub if you could find a tub big enough to hold it, but it would float almost three times higher." \n\nUnlike more familiar gas giants, including those in our solar system, HAT-P-1 does not appear to have a solid core.
1178690
Right now the international convention in astronomy is debating on how a planet is defined... Pluto appears to be just one of the thousands of objects in the Kuiper belt which is believed to contain objects more massive than Pluto, 2003 ub313 is one prime example and is classified as a Trans-Neptunian object... I have already debated this topic with all the other webdatedotcom friends I have and the arguments are pretty interesting..
136781
Pluto (planet), ninth planet from the Sun and outermost known member of the solar system. Pluto was discovered as the result of a telescopic search inaugurated in 1905 by the American astronomer Percival Lowell, who conjectured the existence of a distant planet beyond Neptune as the cause of slight perturbations (see Orbit) in the motions of Uranus. Continued by members of the Lowell Observatory staff, the search ended successfully in 1930, when the American astronomer Clyde William Tombaugh found Pluto near the position Lowell had predicted. The new planet’s mass, however, seemed insufficient to account for the perturbations of Neptune, and the search for a possible tenth planet continues.\n\nPluto revolves about the Sun once in 247.7 years at an average distance of 5.9 billion km (3.67 billion mi). The orbit is so eccentric that at certain points along its path Pluto is closer to the Sun than is Neptune. No possibility of collision exists, however, because Pluto’s orbit is inclined by more than 17.2° to the plane of the ecliptic and never actually crosses Neptune’s path.\n\nVisible only through large telescopes, Pluto is seen to have a yellowish colour. For many years very little was known about the planet, but in 1978 astronomers discovered a relatively large moon orbiting Pluto at a distance of only about 19,000 km (12,000 mi) and named it Charon. The orbits of Pluto and Charon caused them to pass repeatedly in front of one another from 1985 to 1990, enabling astronomers to determine their sizes fairly accurately. Pluto is 2,284 km (1,420 mi) in diameter, and Charon is 1,192 km (740 mi) in diameter, making them even more like a double-planet system than are the Earth and its moon. Pluto was also found to have a thin atmosphere, probably of methane, exerting a pressure on the planet’s surface that is about 100,000 times weaker than the Earth’s atmospheric pressure at sea level. The atmosphere appears to condense and form polar caps during Pluto’s long winter. The first map of Pluto’s surface was made by the Hubble Space Telescope. It shows vague light and dark regions of unknown origin.\n\nWith a density about twice that of water, Pluto is apparently made of much rockier material than are the other planets of the outer solar system. This may be the result of the kind of cold-temperature/low-pressure chemical combinations that took place during the formation of the planet. Some astronomers have suggested that Pluto may be a former satellite of Neptune, knocked into a separate orbit during the early days of the solar system. Charon would then be an accumulation of the lighter materials resulting from the collision.
186108
Ten. A new planet has been discovered that is approximately the same size as Pluto. It has not yet been formally named. Check http://www.nasa.gov/vision/universe/solarsystem/newplanet-072905-images.html for more info:)