...photographs of Jupiter and Saturn? * Question 1 2 out of 2 points | | | Which of the following most likely explains why Jupiter's interior releases so much heat? | | | | | Selected Answer: | Jupiter is contracting very gradually. | | | | | * Question 2 2 out of 2 points | | | Uranus and Neptune have methane clouds but Jupiter and Saturn do not. Which factor explains why? | | | | | Selected Answer: | Temperatures on Jupiter and Saturn are too high for methane to condense. | | | | | * Question 3 2 out of 2 points | | | What would happen to Jupiter if we could somehow double its mass? | | | | | Selected Answer: | Its density would increase but its diameter would barely change. | | | | | * Question 4 2 out of 2 points | | | Which of the following is not a piece of evidence supporting the idea that Europa may have a subsurface ocean? | | | | | Selected Answer: | Astronomers have detected small lakes of liquid water on Europa's surface. | | | | | * Question 5 2 out of 2 points | | | According to our theory of solar system formation, why did Uranus and Neptune end up to be much less massive than Jupiter and Saturn? | | | | | Selected Answer: | Particles in the solar nebula were more spread out at greater distances, so that accretion took longer and there was less time to pull in gas before the solar wind cleared the nebula. | | | | | * Question 6 2 out of 2 points ...
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...Gemini Outlook for 2012 Gemini 5/21 – 6/21 Year 2012 Career Neptune, the planet of inspiration, moves back into your career sector this February to work its mystical glamour for the next several years. This is a time when your dreams and visions insist on becoming tangible realities. A quality of inspiration infuses all that you manifest over the next 12 months, so consider the world your creative oyster! No longer will you work just for the sake of earning a wage; rather, your career promises to become more of a soul-calling. The only downside to this influence is that it can sometimes bring confusion or disillusionment. If this is the case, trust that it's simply a necessary sacrifice that will later bring deeper levels of fulfillment. Mars, the planet of action, will be out of phase for the first four months of the year, putting everyone in a more introverted frame of mind rather than visualizing the future. You usually thrive on continuous movement, but this imposed pause in the action couldn't come at a better time. Use this energetic slowdown to properly integrate all your sources of inspiration and recent feedback. Your whole concept of work is in a profound process of metamorphosis right now. Saturn, the cosmic taskmaster, enters your work sector in October, where it will take up residence for the next two-and-a-half years. This is a time to transform your daily schedule and weed out any methods that waste time. You'll begin to take your talents more seriously and...
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...which is a star. It was also established that the sun due to its gravitational pull attracts all these planets which revolve round it. Apart from the Earth there are some other planets which go round the sun. These planets, however, vary in size and also in their distance from the sun. They have their own orbits, and the period of rotation also varies in each case. Some of these planets have satellites called moons, varying in number. Some do not have any satellites. Normally, if they do not have a counter pull, they should have been dragged into the sun by the gravitational pull. These gravitation pulls of the sun and the counter pulls of the planets are called centrifugal forces. The planets revolve round the sun in their own specific orbits. These planets could be arranged in an order based on their distance from the sun. The nearest to the sun is Mercury and the next is Venus. Third comes the Earth. Later in the same order come Mars, Jupiter, Saturn, Uranus, Neptune and Pluto. Pluto is the most distant planet. If the are arranged in the order of size, the order would be ; 1. Jupiter, 2. Saturn, 3. Neptune, 4.Uranus, 5. Earth, 6. Venus, 7. Mars, 8. Pluto and 9. Mercury. The solar system has a diameter of 17,900 million kms. The nine planets can be grouped into two groups: 1. Small but high density planets – Mercury, Venus, Earth and Mars and 2. big but low...
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...Abstract Eight planets, fifty-eight moons, thousands of asteroids, and billions of meteoroids and comets and one dwarf planet named Pluto orbit the grand star, the Sun. Around and around they go. These planets and other object came from a huge explosion. The Big Bang Theory, which states that the universe began as a dense and hot point that was less than a fraction of an inch and has continued to evolve into what it is known as of today. The origin of the galaxy seems a mystery. But over time, the pieces of the puzzle are coming together. Scientists believe a supernova or star may have formed the universe. When the Earth first formed, it contained gasses which dissolved into the Earth’s molten planet. When this formation happened from the smaller bodies, these were called planetesimals. But not all planets are the same. The Jovian planets are shrouded by thick atmospheres that are rich in hydrogen and helium. These planets were formed away from the sun. A shooting star is what individuals think of when they see a vapor stream of dust and gas shooting across the sky. The sun helps make this spectacle possible and could be a reason why early astronomers were so curious about the skies. When an individual looks up at the night sky, he or she can get lost in the vast beauty. Who wouldn’t get mesmerized? Introduction Our solar system consists of the Sun, eight planets, the dwarf planet Pluto, fifty-eight moons, thousands of asteroids,...
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...Should Pluto be a Planet? In 1930 Clyde W. Tombaugh at the Lowell Observatory in Flagstaff, Arizona discovered the planet Pluto. After serving 76 long years as the ninth planet in our solar system, Pluto was controversially demoted to a dwarf planet in 2006. This has raised many debates on whether Pluto was categorized unfairly or not. Astronomers from both sides of the debate have legitimite arguments making it tough to decide whether Pluto should be classified as a planet or a dwarf planet. Pluto’s title as a planet was questioned when Mike Brown, Professor of Planetary Astronomy at the California Institute of Technology discovered an object in 2005 that was further out than the orbit of Pluto. The object was also 25% more massive than Pluto. This object was later named Eris. It is located along with Pluto in the Kuiper Belt. There are plenty of other mysterious objects located in the Kuiper Belt that are more or less the same size as Pluto and Eris. This troubled the International Astronomical Union because this meant that there are tens to hundreds of objects that could very soon be known as planets. There are approximately more than 1,000 objects composed of the same icy mixture located in the Kuiper Belt. Many astronomers, scientists, and the International Astronomical Union felt uncomfortable with the fact that there are hundreds of objects in our solar system that have a strong possibility of becoming planets. To avoid the feeling of skepticism the International...
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...people often wonder how and why a an hour consists of 60 minutes and a day is divided into 24 hours. We can all tell time and we schedule our appointments and dates around time and day all the time. No one ever really stops to look into the history of the origin of time and how it was determined to be divided upon. However, that definition is a narrow one that only applies to planet earth., but what about other planets? One day is the length of time it takes for a planet to complete one single rotation on its axis which is 360°. Since all of the planets rotate at different speeds, the length of a day on each one differs. The definition of a day will explain just how many hours are in a day for Earth, Venus, Mars, Jupiter, Saturn, Uranus , Neptune, Mercury and Pluto. Explanation of the units of an hour and day There is documented evidence of the use of sundials that were used by Egyptians as early as 1500 B.C.. Sundials were stakes that were strategically placed in the ground so that they can indicate the time by the length and direction of the resulting shadow. A duodecimal system was used to divide the time period between sunrise and sunset into 12 parts. The number 12 was significant because it is the number of lunar cycles in a year. The night sky was divided by 12 and a circle into 360 degrees. They divided the day and night each into 12 hours. The hour was split into 60 minutes and a minute into 60 seconds. The Egyptians divided the clock into 12 hours of daytime and...
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...Miranda is one of the moons of Uranus. It is one of the five major moons of Uranus, similar to Saturn’s medium sized moons except that it is much less reflective. It is not one of the largest moons of Uranus. It is actually a small moon only 470 kilometers wide. However it is the most interesting of Uranus moon because of its unusual appearance. Miranda is one of the icy moons of Uranus. It is one of the smallest icy moons. It was discovered by Kuiper in 1948. It was named after Miranda from William Shakespeare’s play “The Tempest”. Unlike the other moons in the solar system, which are named after Greek and Roman mythological figures, the moons of Uranus are named after characters from classical features. It was the moon that was approached the closet by Voyager 2. So far the only close up image is from the Voyager 2 observation in 1986. During the fly by the southern hemisphere of the moon was pointed toward the Sun, so only that part was studied. Miranda shows more evidence of past geologic activity than any other Uranus moons. It was the last moons of Uranus to be discovered prior to Voyage 2 visit in 1986. It surface is unlike anything in the solar system it looks like a mixture of different surfaces , some quite smooth, some ridged, some density cratered and others where it appears to be filled with lines of crack where meteorite and comets have seen to have shattered the surface. Scientists believe that Miranda was shattered by an impact from an asteroid, meteorite...
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...desire and curiosity that arose, the desire to know what is there beyond earth. This desire arose from people wanting to know whether there exists another world other than the current one we live in, and whether there is life there in space. The discovery of the planet Uranus in the year 1781 by Sir William Herschel, planet Neptune in the year 1846 by John Couch Adams and Pluto by astronomer Clyde Tombaugh in the last century is among the notable discoveries. As a result, governments have invested resources that would be channeled towards space exploration. In October 1957, the first artificial satellite, Sputnik 1, was launched into space. Later on after four years in April 1961, Russian Lt. Yuri Gagarin orbited the earth. Since then, a series of other space visits occurred aimed at studying beyond earth, the contents and properties. Thus the discovery of planets continued. One of the planets in existence was planet Saturn. It is the sixth planet from the sun. It is also the second largest planet. Here are some 10 important facts about this planet Saturn 1. Saturn is Surrounded by a ring Saturn is one of the planets, apart from Jupiter, Uranus and Neptune planet in the solar system that is surrounded by a large, beautiful and extensive ring. Its ring is the biggest and brightest. It has thus been nicknamed famously as “The Ringed Planet”. These are actually many tiny rings called ringlets that make up the larger ring. An astronomer called Galileo was the first person to see...
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...For readers who would like a quick reminder of the book and its main storyline, here is a summary of The Little Prince’s travels and those he met along the way. If Saint-Exupéry is to be believed The Little Prince is a book for children written for grown-ups. It can be read on many different levels to provide pleasure and food for thought for readers of all ages. The author, an aviator, crashes with his aeroplane in the middle of the Sahara desert. While he is trying to repair his aeroplane, a little boy appears and asks him to draw a sheep. The author learns that The Little Prince comes from asteroid B-612 where he has left behind three volcanoes and a rose. Before reaching Earth, he has visited other planets and met some very odd people: a king, a conceited man, a drunkard, a lamplighter, a geographer… Since arriving on Earth, he has spoken to a fox who has taught him that to know someone or something, you must « tame » them, and that makes them unique. « What is essential is invisible to the eye, says the fox. » In order to return to his planet and his rose, The Little Prince allows himself to be bitten by a poisonous snake: his planet is too far away, he cannot take his « shell ». The aviator, who has succeeded in repairing his plane, also quits the desert. He still hopes The Little Prince will return one day and asks us to write and tell him if ever we should meet his friend.Pour les lecteurs qui souhaitent se remémorer le livre et ses principales lignes, voici...
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...PLANETS By Reanna Hinson The purpose of my project and essay is to familiarize ourselves with the different planets within our own solar system. I will present different, unique and amazing facts about each the eight planets. My project also displays a colored example of what each planet appears to look like as well as statistical information. Mercury, Venus, Earth, and Mars, are called the terrestrial planets because they have solid rocky surfaces. Jupiter, Saturn, Uranus, and Neptune and are called gas giants. Earth is the only planet of the eight that has life forms as we know them. All other planets have extreme conditions such as temperatures, atmospheres and weather that make life as we know it impossible to exist, but we still keep looking for alien signs of life. Mercury Mercury is a small planet that spins very slowly in orbit around the sun. It is the planet closest to the sun and has extreme temperature changes. During the day the temperature can soar to 870° Fahrenheit and at night time down to -300° Fahrenheit. Mercury has no moons and a very small and weak atmosphere because the Sun’s solar winds have blown it away. This causes very little to no air on Mercury. Venus Venus and Earth are just about the same size, but Venus always has a thick cloud cover making it impossible to see the surface of the planet, and traps a lot of the Sun’s heat making it the hottest average temperature of all the planets. The average temperature is 850° Fahrenheit...
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...Neptune is the eighth and farthest planet from the Sun in the Solar System. It is the fourth-largest planet by diameter and the third-largest by mass. Neptune is 17 times the mass of Earth and is somewhat more massive than its near-twin Uranus, which is 15 times the mass of Earth but not as dense.[12] On average, Neptune orbits the Sun at a distance of 30.1 AU, approximately 30 times the Earth–Sun distance. Named for the Roman god of the sea, its astronomical symbol is ♆, a stylised version of the god Neptune's trident. Neptune was the first planet found by mathematical prediction rather than by empirical observation. Unexpected changes in the orbit of Uranus ledAlexis Bouvard to deduce that its orbit was subject to gravitational perturbation by an unknown planet. Neptune was subsequently observed on 23 September 1846[1] by Johann Galle within a degree of the position predicted by Urbain Le Verrier, and its largest moon, Triton, was discovered shortly thereafter, though none of the planet's remaining 12 moons were located telescopically until the 20th century. Neptune has been visited by only one spacecraft, Voyager 2, which flew by the planet on 25 August 1989. Neptune is similar in composition to Uranus, and both have compositions which differ from those of the larger gas giants, Jupiter and Saturn. Neptune's atmosphere, while similar to Jupiter's and Saturn's in that it is composed primarily of hydrogen and helium, along with traces ofhydrocarbons and possibly nitrogen, contains...
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...The Milky Way Galaxy * A spiral type of Galaxy * composed of 200 billion stars. * One revolution every ~200 million years. * 100,000 lights years long * 3000 light years wide Our Solar System is mainly composed of: * STARS * PLANETS * SPACE DEBRIS STARS - are luminous heavenly bodies which have their own light. We can see near about 2500 stars on a clear night with our naked eye. But in actual, total no of stars are countless. The star which is nearest to earth is sun. It is the brightest star of all. The second nearest star except sun is Alpha-Centauri. THE SUN * Diameter: 1.4 million km * Age: 4.5 billion years (lifetime 11 billion years) * Mass: 2 x 1030 kg (330,000 x Earths) (99.8% of mass of solar system) * Density: 1.41 (water = 1) * Composition (by mass): Hydrogen: 73%, Helium: 25%, Others: 2% * Distance from Earth: 149.6 million km. * Distance to nearest Star: 9.46 million million km. * Luminosity: 4 x 1026 J s-1 (390 billion billion Megawatts). Solar Cycle: 8 - 11 years. * Temperature at Surface: 5,800°C (10,500 °F). * Temperature of Core: 14 million°C (22.5 million °F) POLARIS - known by many names, is one of the most famous stars in the sky. Polaris is also known as Alpha Ursae Minoris and is part of the constellation Ursa Minor, which is the Little Bear. Polaris is always in the sky; it does not disappear depending on the season, which is one reason why it has been...
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...was elected as Rector. Rector meant ruler. At Breslau he dealt with the exact determination of planetary orbits and developed methods for calculating the height of the aurorae and the path of meteors, and consolidated the data for all 414 comets discovered up to 1894 into one work {with help from his son}. Otherwise he concerned himself with the Earth’s magnetic field and climatology. Altogether he published 200 works. An aurora was a natural light in the sky. Later years In 1897 Galle returned to Potsdam, where he died at the age 98. He was survived by his wife and two sons-Andres Galle and Georg Galle {1850-1946}. Two craters, one on the moon and the “happy face” on mars, the asteroid 2097 Galle a Ring of Neptune have been named in his honor. Discovering Neptune Around the same time in 1845 he sent a copy of his thesis to Urbain Le Verrier but only received an answer a year later. Sent on September 18, 1846, it reached Galle...
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...Name: Raj Patel Class: 12.3 Title: Pluto-: Planet or Not? Pluto-: Planet or Not? Pluto is one of the nine planets of our solar system. Some people argue whether it is worthy of having its title as a planet. In 1930 Clyde W. Tombaugh at the Lowell Observatory in Flagstaff, Arizona discovered the planet Pluto. After serving 76 long years as the ninth planet in our solar system, Pluto was controversially demoted to a dwarf planet in 2006.This has raised many debates on whether Pluto was categorized unfairly or not. Astronomers from both sides of the debate have legitimate arguments making it tough to decide whether Pluto should be classified as a planet or a dwarf planet. Pluto’s title as a planet was questioned when Mike Brown, Professor of Planetary Astronomy at the California Institute of Technology discovered an object in 2005 that was further out than the orbit of Pluto. The object was also 25% more massive than Pluto. This object was later named Eris. It is located along with Pluto in the Kuiper Belt. There are plenty of other mysterious objects located in the Kuiper Belt that are more or less the same size as Pluto and Eris. This troubled the International Astronomical Union because this meant that there are tens to hundreds of objects that could very soon be known as planets. There are approximately more than 1,000 objects composed of the same icy mixture located in the Kuiper Belt. Many astronomers, scientists, and the International Astronomical Union...
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...Mars * Mars is the fourth planet from the sun and the second smallest planet in the Solar System, after Mercury. * Distance to Earth: 140,000,000 miles. * Gravity: 3.711 m/s * Radius: 2,106 miles * Surface area: 55.91 million sq. miles * Moons: Phobos and Deimos * Mass: 639E21 kg Mercury * Mercury is the smallest and closest to the sun of the eight planets in the Solar System, with an orbital period of about 88 earth days. * Distance from Sun: 35,980,000 miles * Gravity: 3.7 m/s * Radius: 1,516 miles * Surface Area: 28.88 million sq. miles * Mass: 328.5E21 kg * Moons: 0 Neptune * Neptune is the eight and farthest planet from the in the solar system. It is the fourth largest planet by diameter and the third largest by mass. Among the gaseous planets in the solar system, Neptune is the densest planet. * Distance from Sun: 2,798,000,000 miles * Gravity: 11.15 m/s * Radius: 15,299 miles * Surface Area: 2.941 billion sq. miles * Mass: 102.4E24 kg * Moon: Triton, Nereid, Naiad, Larissa, Proteus, Galatea, Despina, Thalassa, Neso, Halimede, Psamathe, Laomedeia, Sao. Uranus * Uranus is the seventh planet from the sun. it has the third largest planetary radius and fourth largest planetary mass in the solar system * Distance from Sun: 1,787,000,000 miles * Gravity: 8.69 m/s * Radius: 15,759 miles * Surface Area: 3.121 billion sq. miles * Mass: 86.81E24 kg * Moons: Miranda, Titania, Umbriel, Oberon...
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