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MULTIPLE CHOICE QUESTIONS (50 pts
MULTIPLE CHOICE QUESTIONS (50 pts

... 4. The single most important factor influencing a star’s evolution is A. the strength of its magnetic field. B. its rotation rate. C. its surface temperature. D. its mass. E. its diameter. 5. If there are five objects of the same size that have different temperatures, the hottest object would be the ...
AST 101 Lecture 8 Astronomy in the 17th and 18th Centuries
AST 101 Lecture 8 Astronomy in the 17th and 18th Centuries

... Right Ascension within each constellation. We still use these Flamsteed designations today. (The Royal Greenwich Observatory was closed in 1998 for lack of funds, and is now a museum.) ...
The History of Astronomy
The History of Astronomy

... (nature of motion): Galileo’s experiments showed that objects in air would stay with a moving Earth. • Aristotle thought that all objects naturally come to rest. • Galileo showed that objects will stay in motion unless a force acts to slow them down (Newton’s first law of motion). • The planets COUL ...
17 th and 18 th Century Astronomy
17 th and 18 th Century Astronomy

... Right Ascension within each constellation. We still use these Flamsteed designations today. (The Royal Greenwich Observatory was closed in 1998 for lack of funds, and is now a museum.) ...
1 Marsbugs: The Electronic Astrobiology Newsletter, Volume 12
1 Marsbugs: The Electronic Astrobiology Newsletter, Volume 12

... seven instruments have also gathered large amounts of data about the planet's atmosphere, geology, and chemistry. Bernard Foing, ESA Chief Scientist, provides an overview of the most notable discoveries made during Europe's first trip to the Red Planet. In part two of this overview, Foing looks at h ...
Space - SSHS Science 9
Space - SSHS Science 9

... the Sun and other stars. • This device splits light into a pattern of colors so we can see them as separate lines of color. • It can also tell what chemical elements make up a star, how much of each element each star contains, the temperature of a star and the direction the star is moving. ...
Charting The Universe - University of Windsor
Charting The Universe - University of Windsor

... for the northern hemisphere.. • However, from the perspective of earth, the Sun rises (with respect to the background stars) in the constellations of Cancer in the summer and Capricorn in the winter. • These highest and lowest elevations along the ecliptic define the “tropics” ...
Friday, Sep. 5
Friday, Sep. 5

... This causes it to rise with different stars and to move north and south of the celestial equator during a year. ...
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... Why, in some parts of the world, are the days longer in the summer than in the winter? A) Because the Earth is tilted as it moves around the Sun B) Because the Sun gets brighter in the summer C) Because the Earth spins more slowly in the ...
Sample pages 1 PDF
Sample pages 1 PDF

... The most obvious historical objects of any astronomical significance must be the magnificent stone henges built throughout Europe and Asia, such as Stonehenge and Brodgar, where stone pillars are aligned, so we believe, to indicate the rising and setting of the summer and winter solstice Sun, etc. B ...
GEOCENTRIC AND HELIOCENTRIC MODELS
GEOCENTRIC AND HELIOCENTRIC MODELS

... Why are Uranus and Neptune missing? This is a great example of how scientific knowledge has evolved in light of new evidence, and the role of technology (telescope) in this evolution. Here are some telescope images of planets: ...
ASTR120 Homework 1 − Solutions
ASTR120 Homework 1 − Solutions

... If we double the amount of force to 12 N, the acceleration of the same brick would be : 12 = m a a = 12  m a = 12  3 a = 4 mss Ch. 4, Prob. 31. Mercury : Your diagram should look exactly like the one in box 4 - 1. In this case, the inferior planet is Mercury. You can tell from the diagram that b ...
Charting The Universe - University of Windsor
Charting The Universe - University of Windsor

... for the northern hemisphere.. • However, from the perspective of earth, the Sun rises (with respect to the background stars) in the constellations of Cancer in the summer and Capricorn in the winter. • These highest and lowest elevations along the ecliptic define the “tropics” ...
How many moons does Mercury have? (Update)
How many moons does Mercury have? (Update)

... But what about Mercury? result of massive collisions that caused a planet to If moons are such a common feature in the solar system, why is it that Mercury has none? Yes, if one were to ask how many satellites the planet closest to the sun has, that would be the short answer. But answering it more t ...
Space Interactive Internet Scavenger Hunt
Space Interactive Internet Scavenger Hunt

... discovered, making it only a hypothetical possibility. Scientists believe it would take a star such as the sun over 14 billion years to reach the black dwarf stage, a period of time greater than the estimated age of the universe. If black dwarfs were to exist they would be invisible and scientists c ...
Introductory Physics I (54
Introductory Physics I (54

... C) Our view of distant objects is obscured by gas and dust when we look into the galactic plane. D) One rotation of the galaxy takes about 200 million years. E) It contains between 100 billion and 1 trillion stars. 42) An observer in Quito, Ecuador (latitude 0 deg) sees the Sun at the zenith at noon ...
Final Study Guide Questions Earth Science Spring 2016 Mr. Traeger 1
Final Study Guide Questions Earth Science Spring 2016 Mr. Traeger 1

... Who was Gaspard Coriolis and what did he do? In other words: What is the Coriolis Effect? ...
Minerals
Minerals

... The Coriolis Effect and the swing of a Foucault Pendulum are evidence of the Earth’s rotation. The Earth is closer to the sun in the winter. Around June 21, the sun’s rays are direct on the Tropic of Cancer, 23 ½ o North and the northern hemisphere is tilted toward the sun so we are experiencing sum ...
Lecture11 - UCSB Physics
Lecture11 - UCSB Physics

... –  Inner planets are small and made of heavy elements –  Outer planets are big and made of light elements ...
L1 Solar system
L1 Solar system

... eccentricity distributions, metallicity effect, massradius diagram, ... ...
Theories of Cosmic Evolution - DigitalCommons@University of
Theories of Cosmic Evolution - DigitalCommons@University of

... that all their orbits were centred at the sun. The second great name is that of Copernicus, with whom again we must associate others, such as Galileo; but I doubt whether they deserve our praise quite as much as the men who, centuries earlier, made the Copernican theory possible. Let us not make the ...
CopernicanRev1
CopernicanRev1

... Includes the Law of Gravity BUT ALSO more Explains the precession of Mercury’s perihelion Predicts the existence of Black Holes Supported by many scientists Supported by many testable predictions Can never can be proven but has not been disproven These can always be modified, based on new data/infor ...
Venus Investigation
Venus Investigation

... However, the speculations of the similarities of Earth and Venus proved to be right after further research. Venus was proved to be a barren and uninhabitable wasteland containing several times as many volcanoes as Earth that shaped the Venusian surface. As Earth’s “sister planet”, Venus has a simila ...
Lecture 2a
Lecture 2a

... PHYS 162 Lecture 2a ...
Lecture11 - UCSB Physics
Lecture11 - UCSB Physics

... – Inner planets are small and made of heavy elements – Outer planets are big and made of light elements ...
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Astrobiology



Astrobiology is the study of the origin, evolution, distribution, and future of life in the universe: extraterrestrial life and life on Earth. This interdisciplinary field encompasses the search for habitable environments in our Solar System and habitable planets outside our Solar System, the search for evidence of prebiotic chemistry, laboratory and field research into the origins and early evolution of life on Earth, and studies of the potential for life to adapt to challenges on Earth and in outer space. Astrobiology addresses the question of whether life exists beyond Earth, and how humans can detect it if it does. (The term exobiology is similar but more specific—it covers the search for life beyond Earth, and the effects of extraterrestrial environments on living things.)Astrobiology makes use of physics, chemistry, astronomy, biology, molecular biology, ecology, planetary science, geography, and geology to investigate the possibility of life on other worlds and help recognize biospheres that might be different from the biosphere on Earth. The origin and early evolution of life is an inseparable part of the discipline of astrobiology. Astrobiology concerns itself with interpretation of existing scientific data; given more detailed and reliable data from other parts of the universe, the roots of astrobiology itself—physics, chemistry and biology—may have their theoretical bases challenged. Although speculation is entertained to give context, astrobiology concerns itself primarily with hypotheses that fit firmly into existing scientific theories.The chemistry of life may have begun shortly after the Big Bang, 13.8 billion years ago, during a habitable epoch when the Universe was only 10–17 million years old. According to the panspermia hypothesis, microscopic life—distributed by meteoroids, asteroids and other small Solar System bodies—may exist throughout the universe. According to research published in August 2015, very large galaxies may be more favorable to the creation and development of habitable planets than smaller galaxies, like the Milky Way galaxy. Nonetheless, Earth is the only place in the universe known to harbor life. Estimates of habitable zones around other stars, along with the discovery of hundreds of extrasolar planets and new insights into the extreme habitats here on Earth, suggest that there may be many more habitable places in the universe than considered possible until very recently.Current studies on the planet Mars by the Curiosity and Opportunity rovers are now searching for evidence of ancient life as well as plains related to ancient rivers or lakes that may have been habitable. The search for evidence of habitability, taphonomy (related to fossils), and organic molecules on the planet Mars is now a primary NASA objective on Mars.
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