Revision on Universe 1-The nearest planet to the sun is Mercury
... 2-The sun seems bigger to us than the other stars although it is a medium sized star Because it is the nearest star to us 3-The stars seem very small in size Because they are very distant from us 4-The sequence of the four seasons ...
... 2-The sun seems bigger to us than the other stars although it is a medium sized star Because it is the nearest star to us 3-The stars seem very small in size Because they are very distant from us 4-The sequence of the four seasons ...
Lecture (Powerpoint)
... If Earth were moved to Venus' orbit, runaway greenhouse effect would occur And that explains biggest difference between the two today Difference in surface temperature, atmosphere composition,... Much larger effect than naïve estimate from distance to Sun Large effect of atmosphere Planets as near a ...
... If Earth were moved to Venus' orbit, runaway greenhouse effect would occur And that explains biggest difference between the two today Difference in surface temperature, atmosphere composition,... Much larger effect than naïve estimate from distance to Sun Large effect of atmosphere Planets as near a ...
Observing the Universe 1
... 14. The diagram in Figure 4 shows the movement of an object seen in the sky from November 2005 to January 2006. Is this object likely to be (a) a planet (b) a star ? (The lines show a grid of latitude and longitude on the star sphere) ...
... 14. The diagram in Figure 4 shows the movement of an object seen in the sky from November 2005 to January 2006. Is this object likely to be (a) a planet (b) a star ? (The lines show a grid of latitude and longitude on the star sphere) ...
Earth
... (e.g., Venus, at 0.72 AU, is within HZ, but Ts~745 K!) • Lifetime of star: larger mass = shorter lifetime (must be long enough for evolution) • UV radiation emission: larger mass = more UV (deleterious to life… as we know it) • Habitable zone moves outward with time (star luminosity increases with a ...
... (e.g., Venus, at 0.72 AU, is within HZ, but Ts~745 K!) • Lifetime of star: larger mass = shorter lifetime (must be long enough for evolution) • UV radiation emission: larger mass = more UV (deleterious to life… as we know it) • Habitable zone moves outward with time (star luminosity increases with a ...
Astronomy Invention and Exploration Timeline
... outside our galaxy. 1796: Pierre Laplace develops the theory of the origin of the universe. 1798: Laplace predicts the existence of black holes. 1801: Thomas Young publishes proof of the principle of interference of light, supporting the wave theory of light. The first asteroid is discovered when Gi ...
... outside our galaxy. 1796: Pierre Laplace develops the theory of the origin of the universe. 1798: Laplace predicts the existence of black holes. 1801: Thomas Young publishes proof of the principle of interference of light, supporting the wave theory of light. The first asteroid is discovered when Gi ...
Astronomy Notes
... Neap tides occur when the Earth, Moon and Sun are at right angles. Two per month during first and last quarter moons. Spring tides occur when the Earth, Moon and Sun are in a straight line. Two per month during new and full moons. ...
... Neap tides occur when the Earth, Moon and Sun are at right angles. Two per month during first and last quarter moons. Spring tides occur when the Earth, Moon and Sun are in a straight line. Two per month during new and full moons. ...
File
... Galaxies and Stars Galaxies – billions of star groups more than 100 billion galaxies, each containing billions of stars ...
... Galaxies and Stars Galaxies – billions of star groups more than 100 billion galaxies, each containing billions of stars ...
Events - Temecula Valley Astronomers
... methane and ammonia in its atmosphere? Plate tectonics is the leading guess and I say guess because no one really knows for sure why we have an atmosphere that is 78% nitrogen and the other rocky planets have only a trace of the stuff. If plate tectonics and the cooking of minerals deep underground ...
... methane and ammonia in its atmosphere? Plate tectonics is the leading guess and I say guess because no one really knows for sure why we have an atmosphere that is 78% nitrogen and the other rocky planets have only a trace of the stuff. If plate tectonics and the cooking of minerals deep underground ...
The Milky Way
... Earth. You can now imagine how Earth, the moon, and the sun move through space and how that produces the sights you see in the sky. But how did humanity first realize that we live on a planet moving through space? That required revolutionary overthrow of an ancient and honored theory of Earth’s plac ...
... Earth. You can now imagine how Earth, the moon, and the sun move through space and how that produces the sights you see in the sky. But how did humanity first realize that we live on a planet moving through space? That required revolutionary overthrow of an ancient and honored theory of Earth’s plac ...
Unit E - Topic 1.0 Notes
... Gurson to measure the angle between the Moon and any given star • Early Telescope (late 16th century): invented in the late 16th century and it allowed astronomers such as Galileo to discover details about Earth's closet planetary neighbors and the relative size and distance of what laid beyond Eart ...
... Gurson to measure the angle between the Moon and any given star • Early Telescope (late 16th century): invented in the late 16th century and it allowed astronomers such as Galileo to discover details about Earth's closet planetary neighbors and the relative size and distance of what laid beyond Eart ...
Kepler`s Laws wkst
... 8. V404 Cygni is a dark object orbited by a star in the constellation Cygnus. Many astronomers believe the object is a black hole. Suppose the star’s orbit has a mean radius of 2.30 1010 m and a period of 6.47 days. What is the mass of the black hole? How many times larger is the mass of the black ...
... 8. V404 Cygni is a dark object orbited by a star in the constellation Cygnus. Many astronomers believe the object is a black hole. Suppose the star’s orbit has a mean radius of 2.30 1010 m and a period of 6.47 days. What is the mass of the black hole? How many times larger is the mass of the black ...
Patterns in the Night Sky Constellation: a grouping of stars, as
... Directly above the equator; appear motionless in the sky, which makes them useful for communications and other commercial industries because they can be linked to antennas on Earth. Communication industries use geostationary satellites for satellite broadcast television and radio. ...
... Directly above the equator; appear motionless in the sky, which makes them useful for communications and other commercial industries because they can be linked to antennas on Earth. Communication industries use geostationary satellites for satellite broadcast television and radio. ...
What`s In Outer Space?
... • Because of the different gravity on the planets, we would weigh different on each planet. • Now that you know the order of the planets from the sun, see if you can place them in the right spots. ...
... • Because of the different gravity on the planets, we would weigh different on each planet. • Now that you know the order of the planets from the sun, see if you can place them in the right spots. ...
Lecture 1 - University of Maryland Astronomy
... that a high-eccentricity orbit (rather than the nearly circular one we have) would subject any life to variations too extreme to survive. Also, if the planet in question is too small it can’t retain an atmosphere and will lose its internal heat quickly. A planet that is too large might have any soli ...
... that a high-eccentricity orbit (rather than the nearly circular one we have) would subject any life to variations too extreme to survive. Also, if the planet in question is too small it can’t retain an atmosphere and will lose its internal heat quickly. A planet that is too large might have any soli ...
Chapter 4: The Origin of Modern Astronomy - Otto
... Earth. You can now imagine how Earth, the moon, and the sun move through space and how that produces the sights you see in the sky. But how did humanity first realize that we live on a planet moving through space? That required revolutionary overthrow of an ancient and honored theory of Earth’s plac ...
... Earth. You can now imagine how Earth, the moon, and the sun move through space and how that produces the sights you see in the sky. But how did humanity first realize that we live on a planet moving through space? That required revolutionary overthrow of an ancient and honored theory of Earth’s plac ...
Worldly Wise 3000
... About four hundred years ago, when the telescope was invented, people were able to take a dose look at the planets for the first time. The early astronomers were surprised at what they saw. Saturn's rings were beautiful. Mars had huge craters. Jupiter had several moons. One of them was even bigger t ...
... About four hundred years ago, when the telescope was invented, people were able to take a dose look at the planets for the first time. The early astronomers were surprised at what they saw. Saturn's rings were beautiful. Mars had huge craters. Jupiter had several moons. One of them was even bigger t ...
... orbit- to move in a path around an object as the planets move around the sun. waning- when the moon is getting smaller/less light. waxing- when the moon is getting larger/brighter. telescope- a tool that makes objects appear larger. elliptical- an oval/egg shaped orbit. lunar- means moon. Pluto- a f ...
16.6 NOTES How do astronomers measure distance? Objective
... Objective: Identify two methods astronomers use to measure distances in space ...
... Objective: Identify two methods astronomers use to measure distances in space ...
Document
... • Gliese 581 C marked a milestone in the search for worlds beyond our solar system. It is the smallest exoplanet ever detected, and the first to lie within the habitable zone of its parent star, thus raising the possibility that its surface could sustain liquid water, or even life. It is 50 percent ...
... • Gliese 581 C marked a milestone in the search for worlds beyond our solar system. It is the smallest exoplanet ever detected, and the first to lie within the habitable zone of its parent star, thus raising the possibility that its surface could sustain liquid water, or even life. It is 50 percent ...
TCI_Paper2_ConditionsForLife
... guideline for determining the conditions necessary to support life. It is, after all, the only example we have, but more importantly, “comparative planetology in the Solar System indicates that the Earth’s habitability may be near optimal (especially for complex life)” (Gonzalez 186). Therefore, acc ...
... guideline for determining the conditions necessary to support life. It is, after all, the only example we have, but more importantly, “comparative planetology in the Solar System indicates that the Earth’s habitability may be near optimal (especially for complex life)” (Gonzalez 186). Therefore, acc ...
History of astronomy
... has many implications. In a way it is an assumption, but one that results in specific predictions, which we can test and confirm or refute. It has become a commonly used word as a result of the success of Thomas Kuhn's 1962 book The Structure of Scientific Revolutions. Examples of scientific paradig ...
... has many implications. In a way it is an assumption, but one that results in specific predictions, which we can test and confirm or refute. It has become a commonly used word as a result of the success of Thomas Kuhn's 1962 book The Structure of Scientific Revolutions. Examples of scientific paradig ...
Intro L4 IQ
... the apparent (observed) motion of planets are the “geocentric” (Earth-centered) and “heliocentric” (Suncentered) models. The accepted model today is: ...
... the apparent (observed) motion of planets are the “geocentric” (Earth-centered) and “heliocentric” (Suncentered) models. The accepted model today is: ...
Physics - Gravity and Gravity Applications
... 14) A space station is rotating to create artificial gravity. Its period of rotation is chosen so the outer ring (ro =2150 m) simulates the acceleration of gravity on earth (9.80 m/s2). What should be the radius ri of the inner ring, so it simulates the acceleration of gravity on the surface of Mars ...
... 14) A space station is rotating to create artificial gravity. Its period of rotation is chosen so the outer ring (ro =2150 m) simulates the acceleration of gravity on earth (9.80 m/s2). What should be the radius ri of the inner ring, so it simulates the acceleration of gravity on the surface of Mars ...
The Milky Way - Computer Science Technology
... Earth. You can now imagine how Earth, the moon, and the sun move through space and how that produces the sights you see in the sky. But how did humanity first realize that we live on a planet moving through space? That required the revolutionary overthrow of an ancient and honored theory of Earth’s ...
... Earth. You can now imagine how Earth, the moon, and the sun move through space and how that produces the sights you see in the sky. But how did humanity first realize that we live on a planet moving through space? That required the revolutionary overthrow of an ancient and honored theory of Earth’s ...
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.