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DLAP questionsslater2e_ch3_1_dlap.xml53337682757a2e180c000000
3-1 Astronomers of antiquity used observation and reasoning to develop astonishing advances in the study of astronomy slater2e_ch3_2.html53337682757a2e180c000000
DLAP questionsslater2e_ch3_2_dlap.xml53337682757a2e180c000000
3-2 Nicolaus Copernicus devised the first comprehensive Sun-centered model slater2e_ch3_3.html53337682757a2e180c000000
DLAP questionsslater2e_ch3_3_dlap.xml53337682757a2e180c000000
3-3 Galileo’s discoveries of moons orbiting Jupiter and the phases of Venus strongly supported a heliocentric model slater2e_ch3_4.html53337682757a2e180c000000
DLAP questionsslater2e_ch3_4_dlap.xml53337682757a2e180c000000
3-4 Johannes Kepler proposed that planets orbit the Sun in elliptical paths, moving fastest when closest to the Sun, with the closest planets moving at the highest speeds slater2e_ch3_5.html53337682757a2e180c000000
DLAP questionsslater2e_ch3_5_dlap.xml53337682757a2e180c000000
3-5 Isaac Newton formulated three laws relating force and motion to describe fundamental properties of physical reality slater2e_ch3_6.html53337682757a2e180c000000
DLAP questionsslater2e_ch3_6_dlap.xml53337682757a2e180c000000
3-6 Newton’s description of gravity accounts for Kepler’s laws and explains the motions of the planets slater2e_ch3_7.html53337682757a2e180c000000
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4-1 The solar system has two broad categories of planets orbiting the Sun: terrestrial (Earthlike) and Jovian (Jupiterlike) slater2e_ch4_2.html5334c4c8757a2e5901000000
DLAP questionsslater2e_ch4_2_dlap.xml5334c4c8757a2e5901000000
4-2 Seven large moons are almost as big as the inner, terrestrial planets slater2e_ch4_3.html5334c4c8757a2e5901000000
DLAP questionsslater2e_ch4_3_dlap.xml5334c4c8757a2e5901000000
4-3 Spectroscopy reveals the chemical composition of the planets slater2e_ch4_4.html5334c4c8757a2e5901000000
DLAP questionsslater2e_ch4_4_dlap.xml5334c4c8757a2e5901000000
4-4 Small chunks of rock and ice also orbit the Sun: asteroids, trans-Neptunian objects, and comets slater2e_ch4_5.html5334c4c8757a2e5901000000
DLAP questionsslater2e_ch4_5_dlap.xml5334c4c8757a2e5901000000
4-5 The Sun and planets formed from a rotating solar nebula slater2e_ch4_6.html5334c4c8757a2e5901000000
DLAP questionsslater2e_ch4_6_dlap.xml5334c4c8757a2e5901000000
4-6 The planets formed by countless collisions of dust, rocks, and gas in the region surrounding our young Sun slater2e_ch4_7.html5334c4c8757a2e5901000000
DLAP questionsslater2e_ch4_7_dlap.xml5334c4c8757a2e5901000000
4-7 Understanding how our planets formed around the Sun suggests that planets around other stars are common slater2e_ch4_8.html5334c4c8757a2e5901000000
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1-1 Astronomy is both an ancient cultural practice and a cutting-edge science slater2e_ch1_2.html539229aa757a2e1c3a000000
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1-2 The stars are grouped by constellations slater2e_ch1_3.html539229aa757a2e1c3a000000
DLAP questionsslater2e_ch1_3_dlap.xml539229aa757a2e1c3a000000
1-3 All of the observed celestial motions can be described if our planet earth spins once each day while it orbits around our sun each year slater2e_ch1_4.html539229aa757a2e1c3a000000
DLAP questionsslater2e_ch1_4_dlap.xml539229aa757a2e1c3a000000
1-4 The Sun appears to change position over the day and throughout the year, and these changes result in Earth’s seasons slater2e_ch1_5.html539229aa757a2e1c3a000000
DLAP questionsslater2e_ch1_5_dlap.xml539229aa757a2e1c3a000000
1-5 The Moon appears to change its position in the sky hourly and its phase throughout each month slater2e_ch1_6.html539229aa757a2e1c3a000000
DLAP questionsslater2e_ch1_6_dlap.xml539229aa757a2e1c3a000000
1-6 Eclipses occur only during rarely observed events when our sun, moon, and earth are perfectly aligned slater2e_ch1_7.html539229aa757a2e1c3a000000
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2-1 Light travels through empty space at a speed of nearly 300,000 km/s slater2e_ch2_2.html539229d1757a2e734500000f
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2-2 Glowing objects, like stars, emit an entire spectrum of light slater2e_ch2_3.html539229d1757a2e734500000f
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2-3 An object’s temperature is revealed by the most intense wavelength of its spectrum of light slater2e_ch2_4.html539229d1757a2e734500000f
DLAP questionsslater2e_ch2_4_dlap.xml539229d1757a2e734500000f
2-4 An object’s chemical composition is revealed by the unique pattern of its spectrum of light slater2e_ch2_5.html539229d1757a2e734500000f
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2-5 An object’s motion through space is revealed by the precise wavelength positions of its spectrum of light slater2e_ch2_6.html539229d1757a2e734500000f
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2-6 Telescopes use lenses, mirrors, and electronics to concentrate and capture incoming light for study slater2e_ch2_7.html539229d1757a2e734500000f
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5-1 Most of Earth’s surface is covered with flowing water that radically changes the landscape slater2e_ch5_2.html53922a01757a2ebb3c000006
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5-2 Earth is surrounded by a thin, multilayered envelope of gas that has changed since life became prominent slater2e_ch5_3.html53922a01757a2ebb3c000006
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5-3 Volcanoes and earthquakes reveal energy from a molten interior driving Earth’s surface to shift positions slater2e_ch5_4.html53922a01757a2ebb3c000006
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5-4 Earth’s magnetic field emanating from its spinning, molten interior creates a protective shield from the Sun’s harmful radiation slater2e_ch5_5.html53922a01757a2ebb3c000006
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5-5 A rapidly growing population is altering our planetary habitat slater2e_ch5_6.html53922a01757a2ebb3c000006
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6-1 Comparing terrestrial planets and moons shows distinct similarities and dramatic differences in appearance slater2e_ch6_2.html53922a15757a2e0943000007
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6-2 Many terrestrial world surfaces are dominated by impact craters revealing the age of underlying processes slater2e_ch6_3.html53922a15757a2e0943000007
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6-3 Tectonics and volcanism influence surface features slater2e_ch6_4.html53922a15757a2e0943000007
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6-4 Atmospheres surrounding terrestrial planets vary considerably slater2e_ch6_5.html53922a15757a2e0943000007
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6-5 Evidence exists for water in locations besides Earth slater2e_ch6_6.html53922a15757a2e0943000007
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7-1 Dynamic atmospheres of Jupiter and Saturn change rapidly slater2e_ch7_2.html53922a2c757a2e786c000009
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7-2 Uranus and Neptune have seemingly quiet atmospheres slater2e_ch7_3.html53922a2c757a2e786c000009
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7-3 Saturn’s moon Titan and Neptune’s moon Triton exhibit unexpected atmospheres slater2e_ch7_4.html53922a2c757a2e786c000009
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7-4 All Jovian planet atmospheres are encircled by complex ring systems slater2e_ch7_5.html53922a2c757a2e786c000009
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Key Ideas and Termsslater2e_ch7_6.html53922a2c757a2e786c000009
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8-1 Planets and the chemical building blocks of life are found throughout space slater2e_ch8_2.html53922a41757a2ee66e000010
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8-2 Europa and Mars have the potential for life to have evolved slater2e_ch8_3.html53922a41757a2ee66e000010
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8-3 Meteorites from Mars have been scrutinized for life-forms slater2e_ch8_4.html53922a41757a2ee66e000010
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8-4 The Drake equation helps scientists estimate how many civilizations may inhabit our Galaxy slater2e_ch8_5.html53922a41757a2ee66e000010
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8-5 Searches with space-based infrared telescopes and Earth-based radio telescopes for Earthlike planets and alien civilizations are under way slater2e_ch8_6.html53922a41757a2ee66e000010
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9-1 The Sun’s energy is generated by thermonuclear reactions in its core slater2e_ch9_2.html53922a51757a2e545d00000f
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9-2 Energy slowly moves outward from the solar interior through several processes slater2e_ch9_3.html53922a51757a2e545d00000f
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9-3 The Sun’s outer layers are the photosphere, chromosphere, and corona slater2e_ch9_4.html53922a51757a2e545d00000f
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9-4 Sunspots are low-temperature regions in the photosphere slater2e_ch9_5.html53922a51757a2e545d00000f
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9-5 The Sun’s magnetic field also produces other forms of solar activity and causes aurorae on Earth slater2e_ch9_6.html53922a51757a2e545d00000f
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10-1 Measuring the distances to nearby stars utilizes an effect called parallax slater2e_ch10_2.html53922a64757a2e4848000002
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10-2 A star’s brightness can be described in terms of luminosity or magnitude slater2e_ch10_3.html53922a64757a2e4848000002
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10-3 A star’s distance can be determined by comparing its luminosity and brightness slater2e_ch10_4.html53922a64757a2e4848000002
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10-4 A star’s color depends on its surface temperature slater2e_ch10_5.html53922a64757a2e4848000002
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10-5 The spectra of stars reveal their chemical compositions as well as surface temperatures and sizes slater2e_ch10_6.html53922a64757a2e4848000002
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10-6 Stars come in a wide variety of sizes and masses slater2e_ch10_7.html53922a64757a2e4848000002
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10-7 Hertzsprung-Russell (H-R) diagrams reveal the different kinds of stars slater2e_ch10_8.html53922a64757a2e4848000002
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11-1 Stars form from the gravitational collapse of immense clouds of interstellar gas and dust slater2e_ch11_2.html53922a72757a2e4848000003
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11-2 Most stars shine throughout their lives by converting hydrogen into helium through nuclear fusion slater2e_ch11_3.html53922a72757a2e4848000003
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11-3 Careful observations of star clusters provide insight into how a star’s mass influences how stars change over time slater2e_ch11_4.html53922a72757a2e4848000003
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11-4 Stars slowly become red giants slater2e_ch11_5.html53922a72757a2e4848000003
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11-5 Low-mass stars pulsate and eject planetary nebulae, leaving behind a white dwarf at the end of their life cycles slater2e_ch11_6.html53922a72757a2e4848000003
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12-1 High-mass stars create heavy elements in their cores before violently blowing apart in supernova explosions, leaving behind remnants slater2e_ch12_2.html53922a9d757a2e4548000005
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12-2 Core-collapse supernovae can leave behind remnants, neutron stars, and pulsars slater2e_ch12_3.html53922a9d757a2e4548000005
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12-3 Black holes are created in the death throes of the most massive of stars slater2e_ch12_4.html53922a9d757a2e4548000005
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12-4 Black holes cannot be seen directly slater2e_ch12_5.html53922a9d757a2e4548000005
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12-5 White dwarfs and pulsars in close binary systems can become novae, bursters, and supernovae slater2e_ch12_6.html53922a9d757a2e4548000005
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13-1 The Sun is located in the disk of our Galaxy, about 25,000 light-years from the galactic center slater2e_ch13_2.html53922aab757a2e4548000006
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13-2 Observations of different types of dust, gas, stars, and star clusters reveal the shape of our Galaxy slater2e_ch13_3.html53922aab757a2e4548000006
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13-3 Observations of star-forming regions reveal that our Galaxy has spiral arms slater2e_ch13_4.html53922aab757a2e4548000006
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13-4 Measuring the rotation of our Galaxy reveals the presence of dark matter slater2e_ch13_5.html53922aab757a2e4548000006
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13-5 Spiral arms are caused by density waves that sweep around our Galaxy slater2e_ch13_6.html53922aab757a2e4548000006
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13-6 Infrared and radio observations are used to probe the galactic nucleus slater2e_ch13_7.html53922aab757a2e4548000006
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Key Ideas and Termsslater2e_ch13_8.html53922aab757a2e4548000006
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14-1 When galaxies were first discovered, it was not clear that they lie far beyond the Milky Way until their variable stars were carefully observed slater2e_ch14_2.html53922ac3757a2e0a43000001
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14-2 Hubble devised a system for classifying galaxies according to their appearance slater2e_ch14_3.html53922ac3757a2e0a43000001
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14-3 Exploding stars release similar amounts of light and their distance can be inferred by measuring their apparent brightness slater2e_ch14_4.html53922ac3757a2e0a43000001
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14-4 Galaxies are found in clusters and superclusters slater2e_ch14_5.html53922ac3757a2e0a43000001
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14-5 Colliding galaxies produce starbursts, spiral arms, and other spectacular phenomena slater2e_ch14_6.html53922ac3757a2e0a43000001
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14-6 Dark matter can be inferred by observing the motions of galaxy clusters slater2e_ch14_7.html53922ac3757a2e0a43000001
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14-7 Quasars are the ultraluminous centers of the most distant galaxies slater2e_ch14_8.html53922ac3757a2e0a43000001
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14-8 Supermassive black holes may be the “central engines” that power active galaxies slater2e_ch14_9.html53922ac3757a2e0a43000001
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14-9 Galaxies may have formed from the merger of smaller objects slater2e_ch14_10.html53922ac3757a2e0a43000001
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Key Ideas and Termsslater2e_ch14_11.html53922ac3757a2e0a43000001
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15-1 The darkness of the night sky tells us about the nature of the universe slater2e_ch15_2.html53922ad3757a2e1c3a000001
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15-2 Our observations show us that the universe is expanding slater2e_ch15_3.html53922ad3757a2e1c3a000001
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15-3 The expanding universe emerged from a cataclysmic event called the Big Bang slater2e_ch15_4.html53922ad3757a2e1c3a000001
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15-4 The microwave radiation that fills all space is compelling evidence of a hot Big Bang slater2e_ch15_5.html53922ad3757a2e1c3a000001
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15-5 The universe was a rapidly expanding, hot, opaque plasma during its first 300,000 years and has slowly cooled slater2e_ch15_6.html53922ad3757a2e1c3a000001
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15-6 The shape of the universe indicates its matter and energy content slater2e_ch15_7.html53922ad3757a2e1c3a000001
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15-7 Observations of distant supernovae indicate that we live in an accelerating universe slater2e_ch15_8.html53922ad3757a2e1c3a000001
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Key Ideas and Termsslater2e_ch15_9.html53922ad3757a2e1c3a000001
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DLAP questionsslater2e_fm1_1_dlap.xml53922aff757a2e4848000004
About the Authorsslater2e_fm1_2.html53922aff757a2e4848000004
DLAP questionsslater2e_fm1_2_dlap.xml53922aff757a2e4848000004
Brief Contentsslater2e_fm1_3.html53922aff757a2e4848000004
DLAP questionsslater2e_fm1_3_dlap.xml53922aff757a2e4848000004
Contentsslater2e_fm1_4.html53922aff757a2e4848000004
DLAP questionsslater2e_fm1_4_dlap.xml53922aff757a2e4848000004
A Letter From the Authorsslater2e_fm1_5.html53922aff757a2e4848000004
DLAP questionsslater2e_fm1_5_dlap.xml53922aff757a2e4848000004
Prefaceslater2e_fm1_6.html53922aff757a2e4848000004
DLAP questionsslater2e_fm1_6_dlap.xml53922aff757a2e4848000004
Indexslater2e_index1_1.html53922b1a757a2eb641000004
DLAP questionsslater2e_index1_1_dlap.xml53922b1a757a2eb641000004
Star Chartsslater2e_sc1_1.html53922b31757a2e0443000002
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Appendix Introductionslater2e_app1_1.html53922b64757a2e0943000008
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Appendix 1: The Planets: Orbital Dataslater2e_app1_2.html53922b64757a2e0943000008
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Appendix 2: The Planets: Physical Dataslater2e_app1_3.html53922b64757a2e0943000008
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Appendix 3: Satellites of the Planetsslater2e_app1_4.html53922b64757a2e0943000008
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Appendix 4: The Nearest Starsslater2e_app1_5.html53922b64757a2e0943000008
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Appendix 5: The Visually Brightest Starsslater2e_app1_6.html53922b64757a2e0943000008
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Appendix 6: Some Useful Mathematicsslater2e_app1_7.html53922b64757a2e0943000008
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Appendix 7: Some Important Astronomical Quantitiesslater2e_app1_8.html53922b64757a2e0943000008
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Appendix 8: Some Important Physical Constantsslater2e_app1_9.html53922b64757a2e0943000008
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Appendix 9: Powers-of-Ten Notationslater2e_app1_10.html53922b64757a2e0943000008
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Appendix 10: Jupiter’s Galilean Satellites Compared with the Moon, Mercury, and Marsslater2e_app1_11.html53922b64757a2e0943000008
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