Where are we in planet earth and not mars? or jupiter? or pluto?
476074
Life needs a planet with liquid water. Venus and Mercury are too close and the other planets are too far away.\n\nThe planet can not be too small, or it can not hold on to its atmosphere. Compare the moon: roughly the same distance from the sun as the earth, but too small.
927189
To answer your second question first (I'm just an ornery cuss), Pluto is still a member of the Solar System. It's no longer considered a planet, though. It is now called a dwarf planet because of its size and extremely anomalous orbit (so look it up already).Just like the moon. asteroids, etc. it is still part of the Solar System.\n\nAs to the 1st part of your question-------Usually, as long as Mickey gives him table scraps instead of that crap from the can.Woof!Woof!
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"
829586
Pluto is the smallest planet, recent reports says that pluto is not further considered as one of the planet cause it is actuallay only 3/4 of the moon...........Pluto has one moon named Charon
388822
our neighbor in other planets
118270
There are alot of objects that exist beyond Pluto. Yet, at this point none of these is really large enough to be considered a planet. Check the source link for more info.
952763
Neptune and Pluto, however Pluto is no longer a planet.
901188
im not sorry because where else would you go?we dont have another planet to live on and earth is the only planet in our solar system that does have what we need to live. i agree with you on all these problems but thats the way the world is for now.
31095
The 10th planet was discovered last summer.\n\nJuly 29, 2005: "It's definitely bigger than Pluto." So says Dr. Mike Brown of the California Institute of Technology who announced today the discovery of a new planet in the outer solar system.\n\nThe planet, which hasn't been officially named yet, was found by Brown and colleagues using the Samuel Oschin Telescope at Palomar Observatory near San Diego. It is currently about 97 times farther from the sun than Earth, or 97 Astronomical Units (AU). For comparison, Pluto is 40 AU from the sun. \n\nThe planet's temporary name is 2003 UB313. A permanent name has been proposed by the discoverers to the International Astronomical Union, and they are awaiting the decision of this body before announcing the name.
1174488
No one knows.\n\nScientists keep discovering large round things going around the sun (which is one definition of a planet).  Up until a few years ago, the pretty much accepted answer was 9:\n\n Mercury\n Venus\n Earth\n Mars\n Jupiter\n Saturn\n Uranus\n Neptune\n  and Pluto.\n\nBut in 2003 astronomers Mike Brown, Chad Trujillo, and David Rabinowitz discovered another planet-sized body, WAY out beyond Pluto.  The official name of this 'planet' for now is just 2003UB313, which is an astronomical code for keeping track of new objects.  The astronomers submitted the discovery to the International Astronomical Union (IAU).  The IAU will not only pick a name for this new body, but they will also determine if it will be officially called a planet.  \n\n Since UB313 is bigger than Pluto, there is actually a chance that, if the IAU decides UB313 is not a planet, then Pluto will not be called a planet either.  By discovering a new 'planet,' we may have decreased the number of planets in our solar system from 9 to 8!\n\n But that's not the end of the story.  Mike Brown and the gang keep discovering other big things out there that could possibly be called planets.  Their web site (see the link below) lists three other large objects they have found that might someday be called planets.\n\n And THAT's not the end of the story, either. That's just our solar system.  Scientists are discovering planets that go around other stars quite often.  The second web site below is NASA's place for information about these extrasolar planets. As of 15 June there were 193 of them!
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.
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
566008
yes.there is entirely a newly discovered solar system.there are 3 planets,all revolving around the star upilisone androemedae,and all of them are bigger than jupiter!and NASA has sent satellites which will go to pluto and beyond.hope we find the answers then!
1183831
THere is an argument among astromoners as to whether classify the bodies beyond pluto as planets... consider that in the asteroid belt there are many objects orbiting the sun... do we call them all planets?\n\nCurrently there are officially only 9 planets:\nMercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto.
547157
*Pluto: officially the 9th planet in our solar system\n*10th planet: nothing officially has this designation.\n\nIf you are talking about 2003 UB313, then there is a comparison to be made.  They both live in a similar part of the solar system, but it looks like UB313 seems to be a bit redder than Pluto.  Pluto is also known to have a transient atmosphere, not measurements of a potential atmosphere of UB313 have yet been published.
11810
The 10th planet.\nhttp://science.nasa.gov/headlines/y2005/29jul_planetx.htm
327202
The last time I checked there were still 9 planets and they were considering maybe adding a 10th. Pluto is a planet with a moon of it's own named Charon. Astronomers have also identified a couple of other large bodies orbiting beyond Pluto. It has been suggested that there could be two planetoids beyond Pluto that revolve around each other.