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Student Exploration Sheet: Growing Plants
Student Exploration Sheet: Growing Plants

... unit (AU), equal to the average Earth-Sun distance. Place the planet on the i axis at r = –3.00i AU. Move the velocity vector so that v = -8.0j km/s (|v| = 8.00 km/s). The resulting vectors should look like the vectors in the image at right. (Vectors do not have to be exact.) Click Play, and then cl ...
Jupiter Fact Sheet - UNT College of Arts and Sciences
Jupiter Fact Sheet - UNT College of Arts and Sciences

... temperature and pressure gradually change increase. • There is probably a level at which liquid water is stable. • There should be a fair amount of water in the jovian atmosphere. • Results from the Galileo atmospheric probe indicated less water than predicted. These results are still being analyzed ...
Core instability models of giant planet accretion – II. Forming
Core instability models of giant planet accretion – II. Forming

... form several cores in the same disc. Initially we start the simulation with a number N planets,0 of cores through the disc, separated by 10 rH . This could have important consequences on the final distribution of masses and semimajor axis of extrasolar planets, especially for the changes in the dyna ...
Chapter 8 - Clocks in Rocks
Chapter 8 - Clocks in Rocks

... cross section showing paving at the top, soil below the paving, and bedrock at the base. You also notice that a vertical water pipe extends through a hole in the street into a sewer in the soil. What can you say about the relative ages of the various layers and the water pipe? Why did 19th-century g ...
DTU_9e_ch08 - University of San Diego Home Pages
DTU_9e_ch08 - University of San Diego Home Pages

... composed of a great many narrow ringlets that consist of numerous fragments of ice and ice-coated rock. Jupiter has a much less substantial ring system. Titan has a thick atmosphere of nitrogen, methane, and other gases, as well as lakes of methane and ethane. Enceladus has areas with very different ...
Ronald C. Marks, Ph.D. Professor of Chemistry North Greenville
Ronald C. Marks, Ph.D. Professor of Chemistry North Greenville

...  Too much energy, hard to ...
1 Today Kepler`s Laws Question Kepler`s 2nd Law of Planetary Motion
1 Today Kepler`s Laws Question Kepler`s 2nd Law of Planetary Motion

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Earth is between the Sun and the Moon.
Earth is between the Sun and the Moon.

... since 2006, classified as a dwarf planet very unlike other planets in composition, size, and orbit highly elliptical orbit, like comets spends most of its orbital time well beyond Neptune, in the Kuiper Belt • composition like that of Kuiper-Belt objects • look-alike neighbors not classified as plan ...
The Precambrian rift-related metamagmatic rocks of the Southern
The Precambrian rift-related metamagmatic rocks of the Southern

... existence of temporal or local extensional environments. This is in agreement with the models assigning the Svecofennian province to convergent plate margin environments. The basalts and lamprophyres were found almost in the each borehole of the Southern and Western Lithuania. The dyke swarm include ...
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ppt

... resembles each other in mass and size more than any other planet-satellite pair in the solar system. • The distance is also the smallest, 19,640 km • Charon’s orbit period is the same as its rotational period, and also the same as the Pluto’s rotation period (6.3 days) – Both keep the same face towa ...
Introduction to Astronomy - Northumberland Astronomical Society
Introduction to Astronomy - Northumberland Astronomical Society

... Aristarchus of Samos attempted to calculate the sizes of the Sun and Moon their distances from the Earth. For example: ...
The Atmosphere of Uranus - Massachusetts Institute of Technology
The Atmosphere of Uranus - Massachusetts Institute of Technology

... any exceptional seasonal effects due to the unusually large inclination of Uranus' axis of rotation. However, latitude effects should be reversed from normal: the highest temperatures should occur in polar regions which receive more heat from the Sun than the equatorial regions in the course of one ...
course outline - H-W Science Website
course outline - H-W Science Website

... Outline of Honors Earth Science Class for High Schools Introductory note: This course was developed by modifying and making additions to the Honors Geology class created and taught at the Harvard-Westlake School in Los Angeles by Wendy Van Norden. You will notice the change in format of this outline ...
Rocks and Minerals in Hand Sample
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... much trickier to measure in the field or classroom. In the field we can make some convenient assumptions regarding density: most of the common minerals we encounter (quartz, feldspar, calcite, fluorite, apatite, mica) have about the same, relatively low density: 2.5-3 g/cc, so if you pick up pieces ...
Gravitation 4, and the Waltz of the Planets
Gravitation 4, and the Waltz of the Planets

... motions of the planets. The ancient Greeks and other cultures of that time knew of five planets: Mercury, Venus, Mars, Jupiter, and Saturn, each of which is a bright object in the night sky. For example, when Venus is at its maximum brilliancy, it is 16 times brighter than the brightest star. (By co ...
Read an Excerpt!
Read an Excerpt!

... that “the outer region of the solar system, beyond the orbits of the planets, is occupied by a very large number of comparatively small bodies.” Edgeworth said these worlds were leftovers from the birth of the solar system. In 1951, American astronomer Gerard Kuiper suggested the same idea. For many ...
Young Astronomers Digest
Young Astronomers Digest

... one for the team at Young Astronomer’s Digest – when we first started out with this, we were in trepidations because we were so new to this – both the magazine and the audience. We certainly cut our teeth on being the first true astronomy magazine in Singapore – sourcing for information, experts to ...
Saturn, the ringed planet, and its strange moons
Saturn, the ringed planet, and its strange moons

... Size comparison of the Outer Planets ...
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4 Viable Transfer of Microorganisms in the Solar System and

... the other terrestrial planets via asteroids and comets [1-3]. The period of heavy bombardment lasted until approximately 3.8 billion years (Ga) ago. These impactors would on the one hand have been delivering the volatiles as precursors of life, on the other hand, if sufficiently large and fast, woul ...
Powerpoint slides - Earth & Planetary Sciences
Powerpoint slides - Earth & Planetary Sciences

... • Hypothesis 1) can’t explain why the gas/ice giants are so different to the original nebular composition, and require an enormous initial nebula mass (~1 solar mass) • Hypothesis 2) is reasonable, and can explain why Uranus and Neptune are smaller with less H/He – they must have been forming as the ...
Dr Conor Nixon Fall 2006
Dr Conor Nixon Fall 2006

... • In this case, the heating might continue and runaway until the oceans boiled off: this is called a runaway greenhouse effect. ...
Celestia DATA WORKSHEET
Celestia DATA WORKSHEET

... 9. OK, let’s take a spaceflight. Zoom in on the sun with the “Home” key until it fills the screen. Look in the upper left corner. It’s apparent magnitude (in parentheses), should be between – 36 and -37. Now, to get our spaceship moving, press the “A” key on the keyboard. Notice that our speed, disp ...
surface temperature. Atmospheric Evolution on Earth, Venus, and
surface temperature. Atmospheric Evolution on Earth, Venus, and

... Mercury has no detectable atmosphere; it is too hot, too small, and too close to the Sun. Venus has an extremely dense atmosphere. The outer clouds are similar in temperature to Earth, and it was once thought that Venus was a “jungle” planet. We now know that its surface is hotter than Mercury’s, ho ...
Chapter 6: Formation of the Solar System 6.1 A Brief Tour of the
Chapter 6: Formation of the Solar System 6.1 A Brief Tour of the

... •  Hellish conditions due to an extreme greenhouse effect •  Even hotter than Mercury: 470°C, day and night © 2015 Pearson Education, Inc. ...
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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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