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Astronomy - Dalriada at dalriada.org.uk
Astronomy - Dalriada at dalriada.org.uk

... It is easy to see why the ancient astronomers adopted a geocentric model, with the earth at the centre of an immense celestial sphere and the fixed stars embedded in its surface. They easily explained the stars’ diurnal motion by proposing that the celestial sphere rotates around the earth. But how ...
How Big is the Solar System?
How Big is the Solar System?

... suddenly larger leap of 95 paces (more than twice as as the total distance walked up till then). This gap marks the boundary between the inner and outer solar systems. The inner solar system contains the four small, hard, "terrestrial" (Earth-like) planet; the outer solar system contains the four la ...
1) Suppose that a planet was discovered that has twice the mass
1) Suppose that a planet was discovered that has twice the mass

... D) The relative speed cannot be determined with the information given. the month of January, the Earth is at the closest to the Sun on its orbit. Kepler's Second Law says planets sweep out equal area in equal time as they move in their orbits. Using Kepler's Second Law, we can conclude that the Eart ...
Linking Asteroids and Meteorites through Reflectance
Linking Asteroids and Meteorites through Reflectance

... • If the Earth had no atmosphere, the Moon would be completely dark during an eclipse. • The red color arises because sunlight reaching the Moon must pass through the Earth’s atmosphere, where it is scattered. • Shorter wavelengths are more likely to be scattered by the small particles. By the time ...
Animated Science Space Revision
Animated Science Space Revision

... Saturn was known to the ancients, including the Babylonians and Far Eastern observers. Saturn turns on its axis once every 10 hours and 34 minutes giving it the second-shortest day of any of the solar system’s planets. Fusion does not occur in Saturn as it is a gas giant. Animated Science ...
© The Multi Taskin Mom | http://www.themultitaskinmom.com
© The Multi Taskin Mom | http://www.themultitaskinmom.com

... Cut out each card on the black lines. Hole punch each black dot in the upper left corner of each card. Laminate cards as per your laminators directions. Cut cards from laminate and re-punch holes. ...
AE Module 5 Presentation
AE Module 5 Presentation

Lunar Eclipse
Lunar Eclipse

... Tidal Locking (Phase Locking) Tidal locking is normal. Objects that are tidally locked: Moon to Earth Phobos and Deimos to Mars Most of Jupiter and Saturn's Moons. Pluto and Charon Probably Neptune's and Uranus's moons (not enough data) Mercury to the Sun ...
Exoplanets - An ESO/OPTICON/IAU summer school on modern
Exoplanets - An ESO/OPTICON/IAU summer school on modern

... 2. Formation, dynamics and evolution of planetary systems. 3. Composition and internal structure of planets. 4. Life in the Universe. ...
the atmosphere
the atmosphere

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SIXTH GRADE SCIENCE CRCT STUDY GUIDE S6E1. Students will
SIXTH GRADE SCIENCE CRCT STUDY GUIDE S6E1. Students will

... a. Earth’s crust, mantle, and core including temperature, density, and composition. 127. Holes drilled several kilometers into Earth’s crust provide direct evidence about Earth’s interior in the form of a. ...
Habitable Moons and Planets Around Post-Main Sequence
Habitable Moons and Planets Around Post-Main Sequence

... Large icy moons with ~100km thick crusts take too long to respond conductively to changing surface conditions on solar evolution timescales - will melt at the top (or ablate) while ice beneath remains unaffected (unless other effects take over – meltwater leads. Difficult to model ! ) ...
here.
here.

... 21) Which of the following best describes why we have seasons on Earth? A) Earth's elliptical orbit means we are closer to the Sun and therefore receive more intense sunlight at some times of year than at others. B) The varying speed of Earth in its orbit around the Sun gives us summer when we are m ...
Chapter 20
Chapter 20

... of light from their parent stars (i.e., the stars that they orbit), they are very faint and extremely difficult to see in the glare of their parent stars with current technology. So the search for planets has not concentrated on visible sightings of these planets. Rather, it has depended on watching ...
ph709-08-3b - Centre for Astrophysics and Planetary Science
ph709-08-3b - Centre for Astrophysics and Planetary Science

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Astronomy - Ocee PTA
Astronomy - Ocee PTA

... (gas; we call these Jovian or gas giants).  The smaller planets are made of mostly what? (rock; we call these terrestrial or rock planets).  What is Pluto now classified as? (a dwarf planet)  Which planets have rings of rocks and gas that circle them? (all gas giants) Segment 1: Phases of the Moo ...
Frostburg State Planetarium presents
Frostburg State Planetarium presents

... • Our moon is 2160 miles across, ¼ Earth’s width • Moon ¼ as big as Earth; if Earth a regular globe (1 ft.wide), moon is a tennis ball. • If Earth-moon distance about 30 x Earth’s width. • As Earth, Moon lit by sun with day & night halves • As Moon orbits Earth, see varying part of day side • After ...
generalsciencenotes - Geoscience Research Institute
generalsciencenotes - Geoscience Research Institute

... Jupiter is similar to a “mini-solar system” with its 16 revolving satellites. It is different from the terrestrial planets in its major constituents; like the Sun, it is mainly composed of hydrogen and helium. Jupiter’s magnetosphere is the largest object in the solar system and, with the exception ...
Lecture Two (Powerpoint format)
Lecture Two (Powerpoint format)

... Cacophony in the Celestial Harmony -The Problem of Retrograde Motion  The geocentric model of the universe works very well for stars, but there is a major problem for planetary motion.  Occasionally, the outer planets will appear to slow down, stop, then reverse their direction on the night sky - ...
Topic 4: Earth-Moon
Topic 4: Earth-Moon

... (about 5 degrees) from earth’s orbital plane (ecliptic) The moon crosses earth’s plane twice during its orbit. If this crossing happens at the new moon phase, the Moon will be lined up with the Sun and pass in front of it. This alignment has to be perfect in order for the Moon to completely cover th ...
Lecture9
Lecture9

Power point for Section A Space
Power point for Section A Space

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My Solar System Lab
My Solar System Lab

... limited to the interaction between a very large object, the Earth, and much smaller objects that are very close to it. This is a very limited range of possibilities. Software simulations of gravity allow physics students to explore a variety of other gravitational interactions between objects. This ...
Astronomy_Course_Summary
Astronomy_Course_Summary

...  Summarize the evidence for plate tectonics and discuss the physical processes that drive it.  Demonstrate an understanding of the rock cycle and name some rocks associated with the different types of rocks.  Describe the sources and movement of Earth’s water, weather, and the structure of the at ...
Article - public.iastate.edu
Article - public.iastate.edu

... much of their material into space, which can affect the orbits of their planets — or destroy them. THE SUN: Like other stars, when the sun gets very old, it will enter the red giant phase and begin to pulsate in brightness and size regularly over an average period of a year, Willson said. During thi ...
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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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