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Discovering Kepler`s Law for the Periods of Planets
Discovering Kepler`s Law for the Periods of Planets

... Perform operations with numbers expressed in scientific notation, including problems where both decimal and scientific notation are used. Use scientific notation and choose units of appropriate size for measurements of very large or very small quantities (e.g., use millimeters per year for seafloor ...
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Overview of the Solar System, Grade 6-8
Overview of the Solar System, Grade 6-8

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Assignment 3 - utoledo.edu
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solar system notes

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Abundances and isotopic compositions of rare gases in granites
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sol 4.8 earth, sun, moon

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sol 4.8 earth, sun, moon
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... • Magnetic fields of terrestrial planets are produced by metals such as iron in the liquid state (molten core) and in motion (dynamo action) – moving electrically conducting material • The stronger fields of the Jovian planets are generated by liquid metallic hydrogen or by water with ionized molecu ...
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Astronomy 111 Overview of the Solar system

... ❑ Thus the ratio of amounts of radioactive trace impurities tell how much of the tracer the rock had when it cooled off, and how long ago that was. ❑ The oldest rocks in the Solar system are all 4.567 billion years old, independent of where they came from, so that’s how long ago the Solar system sol ...
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Extrasolar Planets - University of Maryland Astronomy
Extrasolar Planets - University of Maryland Astronomy

... In this lecture we shall discuss many aspects of extrasolar planets. We will begin by considering how one detects them at all. We will then point out that the available detection techniques are strongly biased; in fact, we do not yet have the technology to detect an Earthlike planet around a Sunlike ...
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Use the Force

... force or pulling force. However, we are not sucked into the gravity of lockers, students, or even buildings. Why do you think that is? The strength of gravity is dependent on two things, distance from the object and mass (weight) of the object. We can observe this on a scale. If we weighed an infant ...
Chapter 6 Solar System Chapter Test Lesson 1 Sun Aurora borealis
Chapter 6 Solar System Chapter Test Lesson 1 Sun Aurora borealis

... 5. The _____ is a system of objects of, or around, the Sun. 6. ______ used a telescope to observe the planets and saw the moons revolving around Jupiter. He proved Copernicus’ theory that the planets, including Earth, revolved around the sun. 7. ______ used to be considered a planet, but is now cons ...
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Late Heavy Bombardment



The Late Heavy Bombardment (abbreviated LHB and also known as the lunar cataclysm) is a hypothetical event thought to have occurred approximately 4.1 to 3.8 billion years (Ga) ago, corresponding to the Neohadean and Eoarchean eras on Earth. During this interval, a disproportionately large number of asteroids apparently collided with the early terrestrial planets in the inner Solar System, including Mercury, Venus, Earth, and Mars. The LHB happened after the Earth and other rocky planets had formed and accreted most of their mass, but still quite early in Earth's history.Evidence for the LHB derives from lunar samples brought back by the Apollo astronauts. Isotopic dating of Moon rocks implies that most impact melts occurred in a rather narrow interval of time. Several hypotheses are now offered to explain the apparent spike in the flux of impactors (i.e. asteroids and comets) in the inner Solar System, but no consensus yet exists. The Nice model is popular among planetary scientists; it postulates that the gas giant planets underwent orbital migration and scattered objects in the asteroid and/or Kuiper belts into eccentric orbits, and thereby into the path of the terrestrial planets. Other researchers argue that the lunar sample data do not require a cataclysmic cratering event near 3.9 Ga, and that the apparent clustering of impact melt ages near this time is an artifact of sampling materials retrieved from a single large impact basin. They also note that the rate of impact cratering could be significantly different between the outer and inner zones of the Solar System.
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