the everyman‚ but to the astrologists studying it the dwarf planet has proven itself to be a wealth of knowledge which even sometimes contradicted what they previously believed. It’s geological processes are fascinating‚ exhibiting behaviour never thought possible. Even after eighty-six years‚ there is still much this tiny Kuiper Belt object can teach us.
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Welcome to SCIE 150: The Science of Everything Today: Astronomy Today • Stars: how are they born‚ how do they live‚ how do they die ▫ How do different stars vary in these paths • Planets: how are they born ▫ What are the planets of our solar system like • Constellations are A. Stars that are nearby each other in space B. Stars that appear to be near each other‚ but may be very far apart The Sun • Our Sun is A. B. C. D. An average star A very small star A
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Planet Distance from sun (in km) Distance in scientific notation Mercury 57‚909‚000 5.7909*10^7 Venus 108‚200‚000 1.082*10^8 Earth 149‚600‚000 1.496*10^8 Mars 227‚940‚000 2.2794*10^8 Jupiter 778‚400‚000 7.784*10^8 Saturn 1‚423‚600‚000 1.4236*10^9 Uranus 2‚867‚000‚000 2.867*10^9 Neptune 4‚488‚400‚000 4.4884*10^9 (dont
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NASA has identified many planets outside our solar system. According to the article “Out of this world‚” the organization has discovered over twelve hundred thousand exoplanets throughout the Milky Way Galaxy. The TedX video “Are we Alone” explained that there are millions of planets in our universe. Astronomers discovered these planets by measuring the brightness of distant stars over time. Moreover they measured the brightness using advanced telescopes such as the Kepler. If the brightness fluctuates
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SOLAR SYSTEM PLANETS MERCURY • The closest planet to the sun‚ Mercury is only a bit larger than Earth’s moon. Its day side is scorched by the sun and can reach 840 degrees Fahrenheit (450 Celsius)‚ but on the night side‚ temperatures drop to hundreds of degrees below freezing. VENUS • The second planet from the sun‚ Venus is terribly hot‚ even hotter than Mercury. The atmosphere is toxic. The pressure at the surface would crush and kill you. Scientists describe Venus’ situation as a runaway greenhouse
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of the retinue of objects that orbit the Sun‚ most of the mass is contained within eight (8) relatively solitary planets whose orbits are almost circular and contained within a nearly-flat disc called the ecliptic plane. The four smaller inner planets; Mercury‚ Venus‚ Earth and Mars‚ also called the terrestrial planets‚ are primarily composed of rock and metal. The four outer planets‚ Jupiter‚ Saturn‚ Uranus and Neptune‚ also called the gas giants‚ are composed largely of hydrogen and helium and
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aliens the letter was sent to live on a planet very similar to our own. So researchers believe. And this planet is actually not too far away‚ with respect to how big the universe is. The letter is very welcoming. And it even covers a few political and pop culture points our alien friends‚ or enemies‚ may enjoy. NASA not happy about the letter to aliens on Proxima b; will the space agency make contact too? Sending unsolicited space mail to aliens on a distant planet similar to ours may be frowned upon
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a random cluster. 3. An average star such as our Sun will‚ it is believed‚ eventually end up as (a) a blue dwarf. (b) a black hole. (c) a proton star. (d) a pulsar. (e) a black dwarf. 4. an imaginary line connecting any planet with the Sun (a) revolves around the Sun at a constant angular rate. (b) is always the same length. (c) is longest when the planet moves fastest. (d) sweeps out equal areas in equal periods of time. (e) is constantly getting longer. 5
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includes eight planets and their natural satellites such as Earth’s moon; dwarf planets such as Pluto and Ceres; asteroids; comets and meteoroids 2. The sun is the center of our solar system. It contains almost all of the mass in our solar system and exerts a tremendous gravitational pull on planets and other bodies. 3. Our solar system formed about 4.6 billion years ago. 4. The four planets closest to the Sun - Mercury‚ Venus‚ Earth‚ and Mars - are called the terrestrial planets because they have
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the seasons? 9. Why can we only give the distance from the Earth to the Sun as an average number (include “perihelion” and “aphelion” in your response)? 10. a. Complete the following table comparing each of the eight planets‚ and Pluto‚ with respect to the criteria shown. Use NASA’s planetary factsheet at http://nssdc.gsfc.nasa.gov/planetary/factsheet/ . Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune
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