tag:blogger.com,1999:blog-208292982024-03-07T15:02:54.954+01:00What is Space...All you need to know about space
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto, Asteroids, Comets, Meteorites...
Something more about planets, galaxy, our solar system, life out Earth, other possible life formAleksahttp://www.blogger.com/profile/01317349890082239796noreply@blogger.comBlogger61125tag:blogger.com,1999:blog-20829298.post-44019339149445069732007-05-24T14:50:00.000+02:002008-11-13T10:23:36.475+01:00The Brightest Supernova EverThe brightest stellar explosion ever recorded may be a long-sought new type of supernova, according to observations by NASA's Chandra X-ray Observatory and ground-based optical telescopes. This discovery indicates that violent explosions of extremely massive stars were relatively common in the early universe, and that a similar explosion may be ready to go off in our own galaxy.<br /><br />"This was a truly monstrous explosion, a hundred times more energetic than a typical supernova," said Nathan Smith of the University of California at Berkeley, who led a team of astronomers from California and the University of Texas in Austin. "That means the star that exploded might have been as massive as a star can get, about 150 times that of our sun. We've never seen that before."<br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgHEvjZ9pGW8Qbb_2eHYArIa_3f5egKBSUjNE-FFFqwOIgV1bAR3h_QwkeNa078Ya5lP0XsLc5D7UacF1OkJcdpJimMaU4tG2XYU2kkjS9Tb2PM2sC7WGgTFrb5_LrafOTMHDnT/s1600-h/supernova.jpg"><img style="cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgHEvjZ9pGW8Qbb_2eHYArIa_3f5egKBSUjNE-FFFqwOIgV1bAR3h_QwkeNa078Ya5lP0XsLc5D7UacF1OkJcdpJimMaU4tG2XYU2kkjS9Tb2PM2sC7WGgTFrb5_LrafOTMHDnT/s320/supernova.jpg" alt="" id="BLOGGER_PHOTO_ID_5068109382205276594" border="0" /></a><br /><span style="color: rgb(153, 153, 153);">Photo 1: An artist's illustration of supernova</span><br /><br />Astronomers think many of the first stars in the Universe were this massive, and this new supernova may thus provide a rare glimpse of how those first generation stars died. It is unprecedented, however, to find such a massive star and witness its death. The discovery of the supernova, known as SN 2006gy, provides evidence that the death of such massive stars is fundamentally different from theoretical predictions.<br /><br />"Of all exploding stars ever observed, this was the king," said Alex Filippenko, leader of the ground-based observations at the Lick Observatory at Mt. Hamilton, Calif., and the Keck Observatory in Mauna Kea, Hawaii. "We were astonished to see how bright it got, and how long it lasted."<br /><br />The Chandra observation allowed the team to rule out the most likely alternative explanation for the supernova: that a white dwarf star with a mass only slightly higher than the sun exploded into a dense, hydrogen-rich environment. In that event, SN 2006gy should have been 1,000 times brighter in X-rays than what Chandra detected.<br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgBsjODxWSNqNogrG0TwNDaZLBKuSWCRb-omxvkSymX7KyY2Ez2SkiC61w44hkA-qmC3Yrw4NdIZEnsBkUpV5s4R_t_nQO_0SHMKTACO0V39gwZ20FhbWiEpw0luRkLJJob-REI/s1600-h/supernova1.jpg"><img style="cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgBsjODxWSNqNogrG0TwNDaZLBKuSWCRb-omxvkSymX7KyY2Ez2SkiC61w44hkA-qmC3Yrw4NdIZEnsBkUpV5s4R_t_nQO_0SHMKTACO0V39gwZ20FhbWiEpw0luRkLJJob-REI/s320/supernova1.jpg" alt="" id="BLOGGER_PHOTO_ID_5068109386500243906" border="0" /></a><br /><span style="color: rgb(153, 153, 153);">Photo 2: Optical (left) and X-ray (right) images of SN 2006gy. The dimmer source at lower-left is the nucleus of the host galaxy. The brighter source at upper-right is the stellar explosion. The supernova was as bright as the entire core of a galaxy!</span><br /><br />"This provides strong evidence that SN 2006gy was, in fact, the death of an extremely massive star," said Dave Pooley of the University of California at Berkeley, who led the Chandra observations.<br /><br />The star that produced SN 2006gy apparently expelled a large amount of mass prior to exploding. This large mass loss is similar to that seen from Eta Carinae, a massive star in our galaxy, raising suspicion that Eta Carinae may be poised to explode as a supernova. Although SN 2006gy is intrinsically the brightest supernova ever, it is in the galaxy NGC 1260, some 240 million light years away. However, Eta Carinae is only about 7,500 light years away in our own Milky Way galaxy.<br /><br />"We don't know for sure if Eta Carinae will explode soon, but we had better keep a close eye on it just in case," said Mario Livio of the Space Telescope Science Institute in Baltimore, who was not involved in the research. "Eta Carinae's explosion could be the best star-show in the history of modern civilization."<br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjdCXErgLeU974c-4igzr_RAZ-IP6llG5HCgtK5zhh9HgO-BfU_o_1RcXjW1byOqePXDlB1Fhp9mXoVFCF82BRCqfHNemtFNP9lfyiwbCcKa9OgAOceFJYfNSuTDicB-QCndvYZ/s1600-h/KeyholeMapped.jpg"><img style="cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjdCXErgLeU974c-4igzr_RAZ-IP6llG5HCgtK5zhh9HgO-BfU_o_1RcXjW1byOqePXDlB1Fhp9mXoVFCF82BRCqfHNemtFNP9lfyiwbCcKa9OgAOceFJYfNSuTDicB-QCndvYZ/s320/KeyholeMapped.jpg" alt="" id="BLOGGER_PHOTO_ID_5068109390795211218" border="0" /></a><br /><span style="color: rgb(153, 153, 153);">Photo 3: eta Carinae--a supernova waiting to happen in our own galaxy? The giant star is highlighted by diffraction spikes in this astrophoto taken by Brad Moore. </span><br /><br />Supernovas usually occur when massive stars exhaust their fuel and collapse under their own gravity. In the case of SN 2006gy, however, astronomers think that a very different effect may have triggered the explosion. Under some conditions, the core of a massive star produces so much gamma ray radiation that some of the energy from the radiation converts into particle and anti-particle pairs. The resulting drop in energy causes the star to collapse under its own huge gravity.<br /><br />After this violent collapse, runaway thermonuclear reactions ensue and the star explodes, spewing the remains into space. The SN 2006gy data suggest that spectacular supernovas from the first stars that spew their remains - rather than completely collapsing to a black hole as theorized - may be more common than previously believed.<br /><br />"In terms of the effect on the early universe, there's a huge difference between these two possibilities," said Smith. "One [sprinkles] the galaxy with large quantities of newly made elements and the other locks them up forever in a black hole."Aleksahttp://www.blogger.com/profile/01317349890082239796noreply@blogger.com5tag:blogger.com,1999:blog-20829298.post-73787801641311847122007-05-23T12:21:00.000+02:002008-11-13T10:23:36.632+01:00Crater for moon settlementAlthough ESA’s SMART-1 was smashed into the Moon in 2006, it had the opportunity to gather a tremendous amount of science. Its view of this crater in particular has given ESA scientists the feeling that they might be looking at the perfect spot for a future permanent base on the Moon.<br /><br />Crater Plaskett sits very close to the Moon’s north pole. This means it’s bathed in eternal sunlight. This would provide plenty of solar energy for future explorers, and creates a predictable temperature - it’s only hot, not hot and cold. Nearby craters bathed in eternal darkness might contain large stores of water ice that could be used for air, fuel and drinking water.<br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEggWkN0ADeRSaXmSv4bHmi1KnzAPgdAVxqppByC143sPbiE4UMwnla7jb1o6qrhvL-54NCv_GcVxVfTE_HrZd4MiuKIp5ZBsKMogBQsOmV5FhLUh9GijdDsBXQyFaF_p5OvT3ZX/s1600-h/moon+krater.jpg"><img style="cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEggWkN0ADeRSaXmSv4bHmi1KnzAPgdAVxqppByC143sPbiE4UMwnla7jb1o6qrhvL-54NCv_GcVxVfTE_HrZd4MiuKIp5ZBsKMogBQsOmV5FhLUh9GijdDsBXQyFaF_p5OvT3ZX/s320/moon+krater.jpg" alt="moon crater, moon krater, moon setltement" id="BLOGGER_PHOTO_ID_5067699887138374050" border="0" /></a><br /><br />Crater Plaskett might provide a good first step for exploration of the Solar System. It’s close enough that astronauts would still be able to see the Earth. Help could arrive within days, if necessary, and communications would be almost instantaneous. But it’s remote enough to help mission planners understand what would be involved for future, longer duration missions on the Moon, and eventually to Mars.<br /><br />SMART-1 ended its mission on September 3, 2006, when it ran out of fuel and crashed into the lunar surface. Scientists will be studying its data and images for years.Aleksahttp://www.blogger.com/profile/01317349890082239796noreply@blogger.com1tag:blogger.com,1999:blog-20829298.post-62687205507665717742007-05-19T20:06:00.000+02:002008-11-13T10:23:36.840+01:00Young Stars Hatching in Orion<a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgI4_F4bXq3M-x7MVkzIElz5A306AJTLueJe-LHhVt85sFbJb3aLRoqWY-Jd_0XmXgQX2fHETZdC2J_VyEW3oqTB26M1zd_90WjCg_zZkQmtb1Zq37jMBvjt1qXYGrR8Il5sMVY/s1600-h/orion.jpg"><img style="cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgI4_F4bXq3M-x7MVkzIElz5A306AJTLueJe-LHhVt85sFbJb3aLRoqWY-Jd_0XmXgQX2fHETZdC2J_VyEW3oqTB26M1zd_90WjCg_zZkQmtb1Zq37jMBvjt1qXYGrR8Il5sMVY/s320/orion.jpg" alt="star, space, orion" id="BLOGGER_PHOTO_ID_5066343235818586514" border="0" /></a><br /><br />The latest image released from the Spitzer Space Telescope shows infant stars “hatching” in the head of Orion. Astronomers think that a supernova 3 million years ago sent shockwaves through the region, collapsing clouds of gas and dust, and beginning a new generation of star formation.<br /><br />The region imaged by Spitzer is called Barnard 30, located about 1,300 light-years from Earth in the constellation of Orion. More specifically, it’s located right beside the star considered to be Orion’s head, Lambda Orionis.<br /><br />Since the region is shrouded in dark clouds of gas and dust that obscure visible light images, this was an ideal target for Spitzer, which can peer right through them in the infrared spectrum. The tints of orange-red glow are dust particles warmed by the newly forming stars. The reddish-pink dots are the young stars themselves, embedded in the clouds of gas and dust.Aleksahttp://www.blogger.com/profile/01317349890082239796noreply@blogger.com1tag:blogger.com,1999:blog-20829298.post-26870857288182862662007-04-29T20:37:00.000+02:002008-11-13T10:23:36.982+01:00From the Ashes of the First Stars<a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjYy1ccqqq1ELbGfbEIQdb6zikvwXUBe-QNgfY3ZlcjXSQEhD3PKdBDguKucKJzwBg38ogvAMnd95P-h4GCFH_IYefI5ZH4MeDQuQX7oJGcl4bBsp1OHB6T5TEJKFGv1VNt8L8S/s1600-h/space+large.jpg"><img style="cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjYy1ccqqq1ELbGfbEIQdb6zikvwXUBe-QNgfY3ZlcjXSQEhD3PKdBDguKucKJzwBg38ogvAMnd95P-h4GCFH_IYefI5ZH4MeDQuQX7oJGcl4bBsp1OHB6T5TEJKFGv1VNt8L8S/s320/space+large.jpg" alt="space image" id="BLOGGER_PHOTO_ID_5058922358565932434" border="0" /></a><br /><br />Above, an artist's impression shows a primordial quasar as it might have been, surrounded by sheets of gas, dust, stars and early star clusters. Exacting observations of three distant quasars now indicate emission of very specific colors of the element iron. These Hubble Space Telescope observations, which bolster recent results from the WMAP mission, indicate that a whole complete cycle of stars was born, created this iron, and died within the first few hundred million years of the universe.<br /><br />Image credit: NASA/ESA/ESO/Wolfram Freudling et al. (STECF)Aleksahttp://www.blogger.com/profile/01317349890082239796noreply@blogger.com0tag:blogger.com,1999:blog-20829298.post-51563979663637269802007-04-12T15:24:00.000+02:002008-11-13T10:23:37.068+01:00Big Jupiter's auroras<a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi0HfmzmZ-hHxaP27rKLgBzvBEiuB7B-9Ip_BZXdFD5B5aumQuh1KLNUDTX2qQR0s78ux2DlsFr2fOMDd2IHTZeEmA75EJQUVwlPC6Vo9J2EBOC1wyCbc6DDrRVzvDBvbawKIXR/s1600-h/xray_auroras_strip.jpg"><img style="cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi0HfmzmZ-hHxaP27rKLgBzvBEiuB7B-9Ip_BZXdFD5B5aumQuh1KLNUDTX2qQR0s78ux2DlsFr2fOMDd2IHTZeEmA75EJQUVwlPC6Vo9J2EBOC1wyCbc6DDrRVzvDBvbawKIXR/s320/xray_auroras_strip.jpg" alt="Big Jupiter's auroras" id="BLOGGER_PHOTO_ID_5052532347294732610" border="0" /></a><br /><br /><span style=";font-family:Verdana,Arial,Helvetica,sans-serif;font-size:85%;" >Image: X-ray auroras observed by the Chandra X-ray Observatory</span><br /><br />Northern Lights in Alaska are big??? No way, Jupiter's auroras are much much bigger.<br />The purple ring traces Jupiter's X-ray auroras. Gladstone calls them "Northern Lights on steroids. They're hundreds of times more energetic than auroras on Earth."<br />The purple ring traces Jupiter's X-ray auroras. Gladstone calls them "Northern Lights on steroids. They're hundreds of times more energetic than auroras on Earth."<br />Back in 1979 Jupiter's auroras were discovered by Voyager 1 spacecraft. In the 1990s, ultraviolet cameras on the Hubble Space Telescope photographed raging lights thousands of times more intense than anything ever seen on Earth, while X-ray observatories saw auroral bands and curtains bigger than Earth itself.<br />Jupiter's hyper-auroras never stop. "We see them every time we look," says Gladstone. You don't see auroras in Alaska every time you look, yet on Jupiter the Northern Lights always seem to be "on." Gladstone explains the difference: On Earth, the most intense auroras are caused by solar storms. An explosion on the sun hurls a billion-ton cloud of gas in our direction, and a few days later, it hits. Charged particles rain down on the upper atmosphere, causing the air to glow red, green and purple. On Jupiter, however, the sun is not required. "Jupiter is able to generate its own lights," says Gladstone.<br />The process begins with Jupiter's spin: The giant planet turns on it axis once every 10 hours and drags its planetary magnetic field around with it. As any science hobbyist knows, spinning a magnet is a great way to generate a few volts—it's the basic principle of DC motors. Jupiter's spin produces 10 million volts around its poles.<br />The February 2007 dataset may hold important clues. "Chandra observed the auroras for 15 hours, and we weren't the only ones watching," he says. The Hubble Space Telescope, the FUSE satellite, XMM-Newton (a European X-ray observatory), the New Horizons spacecraft and many ground-based observatories were all taking data at the same time. The campaign was timed to coincide with New Horizons flyby of Jupiter—a slingshot maneuver designed to increase its velocity en route to Pluto.<br /><br />"Jupiter's auroras have never been observed by so many telescopes at once," says Gladstone. "I'm really excited by these data, and the analysis is just beginning."Aleksahttp://www.blogger.com/profile/01317349890082239796noreply@blogger.com0tag:blogger.com,1999:blog-20829298.post-85983726576357998362007-02-14T22:21:00.000+01:002008-11-13T10:23:37.144+01:00nebula NGC 2440 with Sun-like star<a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiQpfFRiwcYTC_YEXWoi4q0_zUT-MkyyQdo11uDrGJkFh9nypM6yC4yVfiMYMUZ3ABjADw54G9DScqbgm49CcfPnWjEwv2a3ud5zeC0hIjXPDXvE5Lz46Ywlnz9tkmsHZqor8b-/s1600-h/heic0703.jpg"><img style="cursor:pointer; cursor:hand;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiQpfFRiwcYTC_YEXWoi4q0_zUT-MkyyQdo11uDrGJkFh9nypM6yC4yVfiMYMUZ3ABjADw54G9DScqbgm49CcfPnWjEwv2a3ud5zeC0hIjXPDXvE5Lz46Ywlnz9tkmsHZqor8b-/s320/heic0703.jpg" border="0" alt=""id="BLOGGER_PHOTO_ID_5031503450772779170" /></a><br /><br />This image is taken by NASA/ESA Hubble Space Telescope! It shows the colorful "last hurrah" of a star like Sun. The star is ending its life. The star, called white dwarf, is the with dot in the center. The planetary nebula in this image is called NGC 2440. The white dwarf at the center of NGC 2440 is one of the hottest known, with a surface temperature of more than 200,000 degrees Celsius. <br /><br />Credit: NASA, ESA, and K. Noll (STScI)Aleksahttp://www.blogger.com/profile/01317349890082239796noreply@blogger.com1tag:blogger.com,1999:blog-20829298.post-1167251225003093122006-12-27T21:18:00.000+01:002007-02-07T21:48:18.113+01:00Did you know?Some NASA facts<br /><br />Four days after it was launched, the Deep Space 1 spacecraft was about 1,000,000 kilometers (about 600,000 miles) from Earth. To fly that far in a jet, you would have to fly for 6 weeks without stopping!<br /><br />~~~~~~~~~~<br /><br />To communicate with distant spacecraft, NASA's Deep Space Network uses antenna with a diameter of up to 70 meters (230 feet). That is almost as big as a football field.<br /><br />~~~~~~~~~~<br /><br />It's a small world. More than 1,000 Earths would fit into Jupiter's vast sphere.<br /><br />~~~~~~~~~~<br /><br />Saturn's beautiful rings are not solid. They are made up of particles of ice, dust and rock -- some as tiny as grains of sand, some much larger than skyscrapers.Aleksahttp://www.blogger.com/profile/01317349890082239796noreply@blogger.com1tag:blogger.com,1999:blog-20829298.post-1161113553331683442006-10-17T21:30:00.000+02:002007-02-07T23:20:39.810+01:00How the Really Big Stars FormAstronomers think they’ve got a handle on how Sun-sized stars come together. But the formation of the largest stars - more than 10 times the mass of the Sun - still puzzle astronomers. New observations on a 20 solar mass star have revealed that these giant stars maintain a torus of material around themselves. They can continuously feed from this “doughnut” of material, while powerful jets of radiation pour from their poles. The material can continue gathering onto the star while avoiding this radiation, which would normally blast it back into space.<br />Astronomers using the National Science Foundation’s Very Large Array (VLA) radio telescope have discovered key evidence that may help them figure out how very massive stars can form.<br />“We think we know how stars like the Sun are formed, but there are major problems in determining how a star 10 times more massive than the Sun can accumulate that much mass. The new observations with the VLA have provided important clues to resolving that mystery,” said Maria Teresa Beltran, of the <st1:placetype st="on">University</st1:placetype> of <st1:placename st="on">Barcelona</st1:placename> in <st1:country-region st="on"><st1:place st="on">Spain</st1:place></st1:country-region>.<br />Beltran and other astronomers from <st1:country-region st="on">Italy</st1:country-region> and <st1:state st="on"><st1:place st="on">Hawaii</st1:place></st1:state> studied a young, massive star called G24 A1 about 25,000 light-years from Earth. This object is about 20 times more massive than the Sun. The scientists reported their findings in the September 28 issue of the journal Nature.<br />Stars form when giant interstellar clouds of gas and dust collapse gravitationally, compacting the material into what becomes the star. While astronomers believe they understand this process reasonably well for smaller stars, the theoretical framework ran into a hitch with larger stars.<br />“When a star gets up to about eight times the mass of the Sun, it pours out enough light and other radiation to stop the further infall of material,” Beltran explained. “We know there are many stars bigger than that, so the question is, how do they get that much mass?”<br />One idea is that infalling matter forms a disk whirling around the star. With most of the radiation escaping without hitting the disk, material can continue to fall into the star from the disk. According to this model, some material will be flung outward along the rotation axis of the disk into powerful outflows.<br />“If this model is correct, there should be material falling inward, rushing outward and rotating around the star all at the same time,” Beltran said. “In fact, that’s exactly what we saw in G24 A1. It’s the first time all three types of motion have been seen in a single young massive star,” she added.<br />The scientists traced motions in gas around the young star by studying radio waves emitted by ammonia molecules at a frequency near 23 GHz. The Doppler shift in the frequency of the radio waves gave them the information on the motions of the gas. This technique allowed them to detect gas falling inward toward a large “doughnut,” or torus, surrounding the disk presumed to be orbiting the young star.<br />“Our detection of gas falling inward toward the star is an important milestone,” Beltran said. The infall of the gas is consistent with the idea of material accreting onto the star in a non-spherical manner, such as in a disk. This supports that idea, which is one of several proposed ways for massive stars to accumulate their great bulk. Others include collisions of smaller stars.<br />“Our findings suggest that the disk model is a plausible way to make stars up to 20 times the mass of the Sun. We’ll continue to study G24 A1 and other objects to improve our understanding,” Beltran said.<br />Beltran worked with Riccardo Cesaroni and Leonardo Testi of the Astrophysical Observatory of Arcetri of INAF in <st1:city st="on">Firenze</st1:city>, <st1:country-region st="on">Italy</st1:country-region>, Claudio Codella and Luca Olmi of the <st1:placetype st="on">Institute</st1:placetype> of <st1:placename st="on">Radioastronomy</st1:placename> of INAF in <st1:city st="on">Firenze</st1:city>, <st1:country-region st="on">Italy</st1:country-region>, and Ray Furuya of the Japanese Subaru Telescope in <st1:state st="on"><st1:place st="on">Hawaii</st1:place></st1:state>.<br />The National Radio Astronomy Observatory is a facility of the National Science Foundation, operated under cooperative agreement by Associated Universities, Inc. <span style=""><br /><br />Original Source: <a href="http://www.nrao.edu/pr/2006/starflow/">NRAO News Release</a> </span>Aleksahttp://www.blogger.com/profile/01317349890082239796noreply@blogger.com6tag:blogger.com,1999:blog-20829298.post-1159358193232342662006-09-27T13:54:00.000+02:002006-09-27T13:56:33.233+02:00Solar System and white star<a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://photos1.blogger.com/blogger/7170/1633/1600/Solarsystem.jpg"><img style="cursor: pointer; width: 346px; height: 163px;" src="http://photos1.blogger.com/blogger/7170/1633/320/Solarsystem.jpg" alt="" border="0" /></a><br /><br />Our solar system comparing to big white starAleksahttp://www.blogger.com/profile/01317349890082239796noreply@blogger.com0tag:blogger.com,1999:blog-20829298.post-1159358074966564602006-09-27T13:51:00.000+02:002006-09-27T13:54:34.980+02:00Hubble photo<a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://photos1.blogger.com/blogger/7170/1633/1600/Hubble%20photo.jpg"><img style="cursor: pointer;" src="http://photos1.blogger.com/blogger/7170/1633/320/Hubble%20photo.jpg" alt="" border="0" /></a><br /><br />Dimensions: 1200x960<br />Size: 162 KB<br />Description: This one of the NASA Hubble Telescope photos...Aleksahttp://www.blogger.com/profile/01317349890082239796noreply@blogger.com0tag:blogger.com,1999:blog-20829298.post-1156507908807175872006-08-25T14:09:00.000+02:002006-09-13T14:47:30.466+02:00Sun with satellite<a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://photos1.blogger.com/blogger/7170/1633/1600/sun%20with%20satellite.jpg"><img style="cursor: pointer;" src="http://photos1.blogger.com/blogger/7170/1633/320/sun%20with%20satellite.jpg" alt="" border="0" /></a><br /><br />Launched on Dec. 2, 2005, SOHO observes the sun's deep interior and also its interactions all the way out to Earth's orbit and beyond, where the magnetized solar wind of atomic particles sweeps through interplanetary space.Aleksahttp://www.blogger.com/profile/01317349890082239796noreply@blogger.com0tag:blogger.com,1999:blog-20829298.post-1156507696847094372006-08-25T14:06:00.000+02:002006-08-30T11:38:03.923+02:00Soyuz<a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://photos1.blogger.com/blogger/7170/1633/1600/Soyuz%20sattelite2.jpg"><img style="cursor: pointer;" src="http://photos1.blogger.com/blogger/7170/1633/320/Soyuz%20sattelite2.jpg" alt="" border="0" /></a><br /><br />Carrying the Expedition 12 crew, a Soyuz TMA-7 that launched from the Baikinour Cosmodrome in Kazakhstan approaches the International Space Station.<br /><br />Image credit: NASAAleksahttp://www.blogger.com/profile/01317349890082239796noreply@blogger.com0tag:blogger.com,1999:blog-20829298.post-1156507526804023532006-08-25T14:04:00.001+02:002006-08-28T15:54:48.470+02:00More about cometsA comet is a minor planet made up of rock, dust and ice. It originates from a cloud of debris remaining from the condensation of the solar nebula. Comets are unique because they are created in the outer solar system, and are greatly affected by the planets they pass. While a comet is orbiting, its path is constantly being altered as it nears surrounding planets. These changes in orbit can send it on a path approaching the sun, where it will burn up, or can be cast completely out of the solar system.<br /> The tail of a comet is actually called the coma, which is composed of gas and dust streams. When a comet passes through the inner solar system, the sun lights up these streams so that we are able to see it. This is how we have been able to see Halley’s Comet from Earth.<br /> The orbital periods of comets vary, but have been divided into three categories: Short period comets; long period comets; and Single-apparition comets. While Short period comets orbit for 200 years or less, long period comets are bound by gravity to the sun, and remain much longer. Single-apparition comets have unusual orbits and are thrown out of the solar system forever.Aleksahttp://www.blogger.com/profile/01317349890082239796noreply@blogger.com0tag:blogger.com,1999:blog-20829298.post-1156507487860735412006-08-25T14:04:00.000+02:002007-02-07T13:21:58.573+01:00What are black holesThe anomalous black holes are concentrated areas of mass so immense, that the mammoth force of gravity denies anything within a certain area around it from passing. This area is called the event horizon of a black hole.<br /> We have given black holes their name because light inside the event horizon can never be seen by mankind, or any outside observer. We believe that black holes in space are created by the collapse of a red super giant star. As these stars reach the end of their lives, an imbalance of inward and outward pressure forces the star to collapse.<br /> Information on black holes is limited, though numerous schools of theory exist. We know black holes exist not because we can see them, but because of the impact they have on the space around them.<br /> Scientists like Karl Schwarzschild, Jayant Narlikar and Stephen Hawking have built upon ideas from Einstein and others to offer theories on black holes. And yet, they remain an enigma. Because extensive, proven black holes information is scarce, they remain a constant area of intrigue and curiosity.Aleksahttp://www.blogger.com/profile/01317349890082239796noreply@blogger.com0tag:blogger.com,1999:blog-20829298.post-1156507439644063192006-08-25T13:58:00.000+02:002006-08-28T16:02:56.230+02:00Something more about our solar system<a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://photos1.blogger.com/blogger/7170/1633/1600/planets.gif"><img style="cursor: pointer;" src="http://photos1.blogger.com/blogger/7170/1633/320/planets.png" alt="" border="0" /></a><br /><br /> The solar system is the home to the sun, nine planets including the Earth, the 158 known moons that orbit those planets, as well as a countless number of other celestial bodies that exist throughout this vast space. Such celestial bodies include things like asteroids, meteoroids and comets.<br /> Though the events leading up to the formation of the solar system are still being debated, is it believed to be more than 4.6 billion years old!<br /> The word "solar" is derived from the Latin word for sun, Sol, leading to the term solar system, or the system of the sun. The planets that orbit the sun within the solar system include Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and the smallest planet of Pluto. Jupiter is by far the largest with an overall mass of more than three times that of the Earth. The sun itself makes up an estimated 99.86% of the solar system’s total mass.Aleksahttp://www.blogger.com/profile/01317349890082239796noreply@blogger.com1tag:blogger.com,1999:blog-20829298.post-1156499805218490722006-08-25T11:51:00.000+02:002006-12-15T17:47:28.506+01:00From 9 to 12<a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://photos1.blogger.com/blogger/7170/1633/1600/12planeta1.jpg"><img style="margin: 0pt 10px 10px 0pt; cursor: pointer;" src="http://photos1.blogger.com/blogger/7170/1633/320/12planeta1.jpg" alt="" border="0" /></a><br />Image: The 12 planets under the newly proposed IAU definition. Planet sizes are shown to scale but their orbital distances are not to scale. Credit: IAU/Martin Kornmesser<br /><br /><br />According to new definition proposed by the International Astronomical Union (IAU) we now have 12 planets in our solar system.<br />* The asteroid Ceres, which is round, would be recast as a dwarf planet in the new scheme<br />* Pluto would remain a planet. It's moon Charon would become planet, and both would be called "plutons"<br />* A Pluto sized object, 2003 UB313 would also be called a pluton<br /><br />The discoverer of the 12th planet, Mike Brown, thinks that idea of 12 planets is "lousy". He also says that accourding to the new definition there are already 53 planets in our solar system, and much more to be discovered.<br /><br />The definition says that all round objects orbiting stars will be called planets.<br /><span style="font-style: italic;">"A planet is a celestial body that (a) has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape, and (b) is in orbit around a star, and is neither a star nor a satellite of a planet."</span><br /><br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://photos1.blogger.com/blogger/7170/1633/1600/12planets2.jpg"><img style="margin: 0pt 10px 10px 0pt; cursor: pointer;" src="http://photos1.blogger.com/blogger/7170/1633/320/12planets2.jpg" alt="" border="0" /></a><br />Image: In proposing a new planet definition, the International Astronomical Union put 12 objects on a watch list of candidates that need further study. They are shown here to scale with Earth. Credit: IAU/Martin KornmesserAleksahttp://www.blogger.com/profile/01317349890082239796noreply@blogger.com1tag:blogger.com,1999:blog-20829298.post-1155462237697434862006-08-13T10:54:00.000+02:002006-12-12T22:57:34.726+01:00Universe could be larger<a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://photos1.blogger.com/blogger/7170/1633/1600/galaxy.jpg"><img style="margin: 0pt 10px 10px 0pt; float: left; cursor: pointer;" src="http://photos1.blogger.com/blogger/7170/1633/320/galaxy.jpg" alt="" border="0" /></a><br />Astronomers recently calculated the distance to the relatively nearby galaxy M33 (The Triangulum Galaxy) as being about 15% further than previously estimated. They analyzed the distance using several telescopes, fine tuning their instruments very carefully. This measurement means that the Hubble constant - which astronomers use to measure distances in the Universe - could be off as well. The Universe might actually be 15% larger than previously believed.Aleksahttp://www.blogger.com/profile/01317349890082239796noreply@blogger.com0tag:blogger.com,1999:blog-20829298.post-1150060703026144662006-06-11T23:13:00.000+02:002006-06-11T23:18:23.180+02:00Right start in astronomyToo many newcomers to astronomy get lost in dead ends and quit in frustration. It shouldn't be that way. Alan M. MacRobert at <a href="http://skyandtelescope.com/howto/basics/article_260_1.asp">skyandtelescope.com</a> explains how simple, easy and interesting can astornomy be! You just have to start right.<br /><br />Some of the tips are:<br /><br />1. Learn the sky with the unaided eye.<br />2. Ransack your public library.<br />3. Thinking telescope? Start with binoculars.<br />4. Dive into maps and guidebooks.<br />5. Keep an astronomy diary.<br />6. Seek out other amateurs.<br />7. When it's time for a telescope, plunge in deep.<br />8. Lose your ego.<br />9. Relax and have fun.<br /><br />For more details visit <a href="http://skyandtelescope.com/howto/basics/article_260_1.asp">skyandtelescope</a>Aleksahttp://www.blogger.com/profile/01317349890082239796noreply@blogger.com0tag:blogger.com,1999:blog-20829298.post-1149772758768944062006-06-08T15:15:00.000+02:002006-06-10T14:42:49.536+02:00Our solar systemOur solar system is part of the Milky Way galaxy, a spiral galaxy with a diameter of about 100,000 light years containing about 200 billion stars. The solar system comprises our Sun and the retinue of celestial objects gravitationally bound to it. Traditionally, this is said to consist of the Sun, nine planets and their 158 currently known moons; however, a large number of other objects, including asteroids, meteoroids, planetoids, comets, and interplanetary dust, orbit the Sun as well. The Sun is a main sequence G2 star that contains 99.86% of the system's known mass. The point at which solar system ends and interstellar space begins is not precisely defined, since its outer boundaries are delineated by two separate forces: the solar wind and the Sun's gravity.<br /><br />The current hypothesis of solar system formation is the nebular hypothesis, first proposed in 1755 by Immanuel Kant and independently formulated by Pierre-Simon Laplace. It states the solar system was formed from a gaseous cloud called the solar nebula. It had a diameter of 100 AU and was 2-3 times the mass of the Sun. Over time, a disturbance, possibly a nearby supernova, sent shock waves into space, which squeezed the nebula, pushing more and more of its matter inward until gravitational forces overcame its internal gas pressure and it began to collapse. As the nebula collapsed, it decreased in size, which in turn caused it to spin faster to conserve angular momentum. And as the competing forces associated with gravity, gas pressure, magnetic fields, and rotation acted on it, the contracting nebula began to flatten into a spinning pancake shape with a bulge at the center.<br /><br />When the nebula further condensed, a protostar was formed in the middle. This system was heated by friction of the rocks colliding into each other. Lighter elements such as hydrogen and helium evaporated out of the centre and migrated to the disc's edges, thus concentrating heavier elements to form dust and rocks in the centre. These heavier elements clumped together to form planetesimals and protoplanets. In the outer regions of this solar nebula, ice and volatile gases were able to survive, and as a result, inner planets are rocky and the massive outer planets captured large amounts of lighter gases, such as hydrogen and helium.<br /><br />After 100 million years, the pressures and densities of hydrogen in the centre of the collapsed nebula became great enough for the protosun to sustain thermonuclear fusion reactions. As a result of this, hydrogen was converted to helium, and a great amount of heat was released.<br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://photos1.blogger.com/blogger/7170/1633/1600/reakcija.jpg"><img style="margin: 0pt 10px 10px 0pt; float: left; cursor: pointer;" src="http://photos1.blogger.com/blogger/7170/1633/320/reakcija.jpg" alt="" border="0" /></a><br /><br /><br />During that time, the protostar turned into the Sun and the protoplanets and planetesimals were transformed into planets. All of the planets formed in a relatively short time of a few million years.<br /><br />Scientists estimate that the solar system is 4.6 billion years old. To calculate this figure, they examine an unstable element, which is subject to radioactive decay. By observing how much this element has decayed, they can calculate how old this element is. The oldest rocks on earth are approximately 3.9 billion years old, however it is hard to find these rocks as the earth has been thoroughly resurfaced. To estimate the age of the solar system, scientists must find rocks from space, such as meteorites – which are formed during the early condensation of the solar nebula. The oldest meteorite was found to have an age of 4.6 billion years, hence the solar system must be at least 4.6 billion years old.Aleksahttp://www.blogger.com/profile/01317349890082239796noreply@blogger.com0tag:blogger.com,1999:blog-20829298.post-1149767924740369732006-06-08T13:57:00.000+02:002006-06-09T22:36:53.960+02:00Titan on the side<a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://photos1.blogger.com/blogger/7170/1633/1600/titan%20on%20the%20side.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="http://photos1.blogger.com/blogger/7170/1633/320/titan%20on%20the%20side.jpg" alt="" border="0" /></a><br /> Titan is the largest Saturn's moon, it peaks out from under the planet's rings of ice<br /> This view looks toward Titan (5,150 kilometers, or 3,200 miles across) from slightly beneath the ringplane. The dark Encke gap (325 kilometers, or 200 miles wide) is visible here, as is the narrow F ring.<br /> Images taken using red, green and blue spectral filters were combined to create this natural color view. The images were taken with the Cassini spacecraft narrow-angle camera on April 28, 2006 at a distance of approximately 1.8 million kilometers (1.1 million miles) from Titan.<br /><br />Image credit: NASA/JPL/Space Science InstituteAleksahttp://www.blogger.com/profile/01317349890082239796noreply@blogger.com0tag:blogger.com,1999:blog-20829298.post-1149767800473398992006-06-08T13:54:00.000+02:002006-06-09T17:11:09.513+02:00Skylab<a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://photos1.blogger.com/blogger/7170/1633/1600/raketa.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer; width: 308px; height: 231px;" src="http://photos1.blogger.com/blogger/7170/1633/320/raketa.jpg" alt="" border="0" /></a><br /> This time exposure photograph of the Mobile Service Structure makes the structure apprear as a streak of light as it moves away from the Skylab 4 space vehicle the night before the launch.<br /> Skylab 4 launched on Nov. 16, 1973. The crew -- Commander Gerald Carr, Mission Pilot William Pogue and Edward Gibson -- spent 84 days aboard the station.<br /><br />Image credit: NASA <a href="http://www.nasa.gov/images/content/149713main_image_feature_583_ys_full.jpg">(Full Resolution)</a>Aleksahttp://www.blogger.com/profile/01317349890082239796noreply@blogger.com0tag:blogger.com,1999:blog-20829298.post-1149767530725789292006-06-08T13:45:00.000+02:002006-06-08T13:52:11.613+02:00SuitSat - new satelliteUsing a simple police scanner or ham radio, you can listen to a disembodied spacesuit circling Earth.<br /> One of the strangest satellites in the history of the space age was in orbit! The spacesuit is the satellite -- "SuitSat" for short.<br /> SuitSat is a Russian brainstorm. Old spacesuits can be turned into useful satellites. SuitSat is a first test of that idea.<br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://photos1.blogger.com/blogger/7170/1633/1600/odelo.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="http://photos1.blogger.com/blogger/7170/1633/320/odelo.jpg" alt="" border="0" /></a><center>Photo: ISS astronaut Mike Finke spacewalks in a Russian Orlan spacesuit in 2004. SuitSat will have no one inside.</center><br /> Spacesuit was equipped with three batteries, a radio transmitter and internal sensors to measure temperature and battery power. As SuitSat circled Earth, it transmited its condition to the ground.<br /> SuitSat could be heard by anyone on the ground. All you need is an antenna and a radio receiver that you can tune to 145.990 MHz FM. A police band scanner or a hand-talkie ham radio would work just fine. Students, scouts, teachers and ham radio operators were able to tune in.<br /> Using Science@NASA’s J-PASS utility you could find out when will SuitSat orbit over your city. All you need to enter is you zip code.<br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://photos1.blogger.com/blogger/7170/1633/1600/radio.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="http://photos1.blogger.com/blogger/7170/1633/320/radio.jpg" alt="" border="0" /></a><center>Photo: Tune your FM radio to 145.990 MHz.</center><br />When you point antena you could hear:<br /> SuitSat transmits for 30 seconds, pauses for 30 seconds, and then repeats. "This is SuitSat-1, RS0RS”<br /> Suitsat 'talked' using a voice synthesizer. It's pretty amazing.Aleksahttp://www.blogger.com/profile/01317349890082239796noreply@blogger.com0tag:blogger.com,1999:blog-20829298.post-1149545397471029522006-06-05T23:58:00.000+02:002006-06-14T16:19:04.683+02:00Huge storms on JupiterTwo biggest storms in solar system are about to happened!<br /><br />Storm #1 is the <a href="http://space-science.blogspot.com/2006/05/jupiters-great-red-spot.html">Great Red Spot</a>, twice as wide as Earth itself, with winds blowing 350 mph. The behemoth has been spinning around Jupiter for hundreds of years.<br /><br />Storm #2 is Oval BA, also known as "Red Jr.," a youngster of a storm only six years old. Compared to the Great Red Spot, Red Jr. is half-sized, able to swallow Earth merely once, but it blows just as hard as its older cousin.<br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://photos1.blogger.com/blogger/7170/1633/1600/spots.1.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer; width: 426px; height: 223px;" src="http://photos1.blogger.com/blogger/7170/1633/320/spots.1.jpg" alt="" border="0" /></a><center>Photo: Jupiter's two red spots</center><br />Amy Simon-Miller of the Goddard Space Flight Center said that closest approach is going to be on the 4th of July. Two storms are converging. Amy Simon-Miller is monitoring the storms using the Hubble Space Telescope. "The Great Red Spot is not going to 'eat' Oval BA or anything like that." But the storms' outer bands will pass quite close to one another—and no one knows exactly what will happen.<br /><br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://photos1.blogger.com/blogger/7170/1633/1600/redjr_med.1.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="http://photos1.blogger.com/blogger/7170/1633/320/redjr_med.1.jpg" alt="" border="0" /></a><center>Photo: Red Oval BA</center><br />The color of the Great Red Spot itself is a mystery. A popular theory holds that the storm dredges up material from deep inside Jupiter's atmosphere, lifting it above the highest clouds where solar ultraviolet rays turn "chromophores" (color-changing compounds) red. A beefed-up Oval BA could suddenly do the same.<br /><br />Some amateur astronomers are already monitoring this eventAleksahttp://www.blogger.com/profile/01317349890082239796noreply@blogger.com0tag:blogger.com,1999:blog-20829298.post-1149433126688126232006-06-04T16:51:00.000+02:002007-01-27T05:41:27.096+01:00Stars and Planets AlignmentMark you calendar: June 7th, June 15th and June 17th. Three sunsets, three planets and a star cluster – good way to end the day.<br />Something remarkable is about to happen in the evening sky. Three planets and a star cluster are converging for a close encounter you won't want to miss.<br /><br /><span style="font-weight: bold;">June 7th</span>: If you are Star Trek fan, make the Vulcan "Live Long and Prosper" sign with your right hand. Hold it at arm's length. By Wednesday, June 7th, both Mars and Saturn will fit inside the "V"<br /><br /><span style="font-weight: bold;">June 15th</span>: This is special night. Mars will pass directly in front of the Beehive. See this with binoculars or with small telescope. Red Mars is 16 times brighter than the surrounding stars. It’ll look like a red supernova has gone off inside the cluster.<br />More in June 15th, Mercury leaps out of the glare of the Sun, soaring into the evening sky not far from Saturn and Mars. Mercury is easy to see even from over-lit cities.<br /><br /><span style="font-weight: bold;">June 17th</span>: Mars and Saturn draw so close together you might think they are going to collide (of course they won’t). Stick out your pinky and hold it at arm's length. The two planets will fit behind the tip with room to spare. Mercury, meanwhile, hovers just below.<br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://photos1.blogger.com/blogger/7170/1633/1600/stars%20and%20planet.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer; width: 351px; height: 221px;" src="http://photos1.blogger.com/blogger/7170/1633/200/stars%20and%20planet.jpg" alt="" border="0" /></a>Aleksahttp://www.blogger.com/profile/01317349890082239796noreply@blogger.com0tag:blogger.com,1999:blog-20829298.post-1149346983168101852006-06-03T16:57:00.000+02:002006-06-03T17:03:03.670+02:00New Moons of PlutoAstronomers using NASA’s Hubble Space Telescope discover that Pluto, the ninth planet is our solar system, may have not one, but three moons.<br /><br /><div style="text-align: center;"><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://photos1.blogger.com/blogger/7170/1633/1600/pluto%20moon.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="http://photos1.blogger.com/blogger/7170/1633/320/pluto%20moon.jpg" alt="" border="0" /></a>Picture: An artist's concept of the Pluto system as seen from the surface of one of the candidate moons.<br /></div><br />Pluto was discovered in 1930. It is 3 billion miles away form sun in the heart of the Kupiter Belt, a vast region of icy, rocky bodies beyond Neptune’s orbit. Charon, Pluto’s moon, was discovered in 1978.<br />"If, as our new Hubble images indicate, Pluto has not one, but two or three moons, it will become the first body in the Kuiper Belt known to have more than one satellite," said Hal Weaver of the Johns Hopkins Applied Physics Laboratory, Laurel, Md. He is co-leader of the team that made the discovery.<br />New moons are 44,000 km away from Pluto, and that is two or three times more far than Pluto – Charon<br />These are tiny moons. Their estimated diameters lie between 64 and 200 kilometers. Charon, for comparison, is about 1170 km wide, while Pluto itself has a diameter of about 2270 km.<br />Two new moon candidate are seen with Hubble on May 15, 2005. Three days later, Hubble looked at Pluto again. The two objects were still there and appeared to be moving in orbit around Pluto<br />The team look for any other moons around Pluto but didn’t find nothing.<br /><br /><div style="text-align: center;"><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://photos1.blogger.com/blogger/7170/1633/1600/pluto%20moon2.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="http://photos1.blogger.com/blogger/7170/1633/320/pluto%20moon2.jpg" alt="" border="0" /></a>Picture: Hubble Space Telescope images taken in May 2005 show the candidate moons apparently rotating counterclockwise around Pluto.<br /></div>Aleksahttp://www.blogger.com/profile/01317349890082239796noreply@blogger.com0