The word planet is derived from the ancient Greek word planetes‚ or “wanderers.” Though the visible planets of that time did appear to be wandering in the sky‚ the science of Astronomy has broadened this term as well as our understanding of what‚ in fact a planet is. By modern definition‚ “planet” is described as a celestial body other than a star‚ which orbits a star. Our Solar System orbits the center of our home galaxy‚ the Milky Way‚ and has a rich and varied structure. It consists of the
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A Comparison of the Planets in the Sol System Shaun J. Sci350 December 19‚ 2004 Introduction Beginning Mercury‚ this paper will compare the nine planets and major moons of our solar system and describe their individual characteristics. At the end of this discussion‚ the habitability factor of these different worlds will be discussed as compared to that of the Earth ’s. A Brief History of the Sol System By radiocarbon dating meteorites‚ we know that roughly 4.6 billion
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Why do the planets have different colours? The answer is that the planets are different colors because they are made of different materials. Planets have the colours that they have because of what they are made of and how their surfaces or atmospheres reflect and absorb sunlight. Mercury has a dark grey‚ rocky surface which is covered with a thick layer of dust. The surface is thought to be made up of igneous silicate rocks and dust. Venus is entirely covered with a thick carbon dioxide atmosphere
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Colonizing the Red Planet As humans we are very curious. We have explored and conquered all around Planet Earth. It’s only been a matter of time before we move onto bigger and better things. Mars may seem like it is too far away or too complicated to try and accomplish‚ but with the technology changing every day we are closer than ever to reach the red planet. Colonizing Mars can happen if we get water‚ learn how to grow food‚ obtain oxygen‚ and get the materials needed survive. Mars‚ otherwise know
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The Giant planets Lesson 8.8 Introduction: Gas giants fall into different categories. So-called “traditional” gas giants include Jupiter. Jupiter is such a classic example of a gas giant that gas giants are often referred to as Jovian planets despite the fact that some gas giants ‚ice giants for instance are very different from Jupiter. Traditional gas giants have high levels of hydrogen and helium. Another category of gas giants is ice giants. Ice giants are also composed of small amounts
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A mysterious planet found in our solar system is potentially up to some evil ways. Astrophysicists are tracking its orbit and claiming that its odd behaviour may eventually have a negative impact on Earth. PLANET 9 MAY HAVE SOME EVIL TENDENCIES According to a University of Louisiana astrophysics professor‚ Planet 9 and it’s unusual orbit may have been the cause of past extinctions. Professor Daniel Whitmire claims the ice planet will turn evil by hurling space rocks towards Earth. It’s 20‚000-year
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Planet Nine‚ the new planet that has been discovered inside of our solar system. Planet Nine is a planet that astronomers‚Konstantin Batygin and Mike Brown‚ have found with research and evidence. Because they used research and evidence Planet Nine hasn’t been seen but astronomers believe that they have enough evidence to prove that it is in our solar system. The evidence to prove that it is in our solar system is that scientists have recently noticed a change in orbits of space objects near by‚and
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Evolution on Rocky Planets Atmosphere can be defined as a gaseous compound layer surrounding a large body mass suspended by means of gravity and centrifugal force caused by rotation [1]. Atmospheres of planets have not always been the same‚ its evolution comprised of complex development across million years of geologic time affected by various changes of variables inside and outside its planet [2]. Of the interest of this essay is the atmospheric evolution of a rocky planet. Rocky planet is a terrestrial
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The “Planet” Pluto was discovered by scientist in 1930. Even then‚ there was argument over whether this little ball of ice should be considered a planet. It was decided it should‚ mainly because since the gravity of the eighth planet‚ Neptune‚ was found because it was tugging on the seventh planet‚ Uranus‚ and then Pluto was found when its gravity tugged on the orbit of Neptune. Pluto was just a continuation in the time-tested practice of discovering the existence of planets from the behavior of
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My friend Sydney‚ also a Ravenclaw‚ and I planned a planetary viewing for November sixteenth. We planned to go to the top of the astronomy tower‚ and catch a glimpse of the three planets we had learned could be seen in late November‚ Venus‚ Mars‚ and Jupiter. We both had passes from professor Turing‚ so we were sure we wouldn’t get caught by Filch for being out of bed. But then again‚ Filch is a bit of an idiot. We headed up to the top of the astronomy tower‚ glancing at the lunar chart Professor
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