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Test - Hampton Science 8A 8B 8C 8D 8E Stars are classified on the
Test - Hampton Science 8A 8B 8C 8D 8E Stars are classified on the

Stars - BrainBytes
Stars - BrainBytes

... Majority of stars (about 90%) fall in this category Runs from upper left (high luminosity, high surface temperature ) to lower right (low luminosity, low surface temperature) Life span: 1 million – 1 billion yrs Actively fuse hydrogen and helium Example: our Sun ...
Unit: Southern Europe
Unit: Southern Europe

... GLE 0507.6.1: I can identify what orbits the Sun. This means that I can explain how objects in our solar system interact. I can distinguish between a comet and an asteroid. I can also recognize the difference between a meteor, meteoroid, and meteorites. Rate your own mastery of this learning target. ...
Meteors, Meteoroids, and Meteorites
Meteors, Meteoroids, and Meteorites

Circumference and Shape of the Earth
Circumference and Shape of the Earth

... T decreases = faster swing g decreases then T increases = slower swing ...
The Lives of Stars
The Lives of Stars

... Starts to consume hydrogen Helium begins to accumulate in the core Interior begins to heat up increasing temperature and pressure Forces are balanced by gravitational pull The time a star takes remains stable depends on mass ...
Stargazing Rules 01162013
Stargazing Rules 01162013

... Moon is shaped like a "C", it bulges to the left. 18. Even though most of the objects we observe in the night sky appear not to move in relation to each other, in reality they are all moving at great speed relative to us and to each other. They appear not to be moving because of their great distanc ...
theory (casual usage of the word) vs. scientific theory
theory (casual usage of the word) vs. scientific theory

... – 3.5 bya 1st fossil evidence of prokaryotic life – 1 bya 1st fossil evidence of eukaryotic life (pg 427 endosymbiotic theory) – Sexual reproduction arises and SPEEDS up the evolutionary process! Leads to much more variation!! (pg. 428) – A few hundred million years after sexual repro. evolved we be ...
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Document

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1 - Northwest ISD Moodle
1 - Northwest ISD Moodle

... The Earth’s path in this diagram is greatly exaggerated, however, it also shows how the Earth’s gravitational field could influence the Sun’s motion. When the Earth is closest to the Sun in its orbit (a point called Perihelion), as small as we are, we do influence the Sun slightly, pulling it ...
Day Starters
Day Starters

... The longest day followed by the shortest b. The longest day c. The shortest day d. Either “b” or “c” 2. The vernal equinox is on the first day of a. fall b. spring c. summer d. winter 3. Precession means that a. The Earth “wobbles” like a top and moves through a cycle of “North Stars” every 25,000 y ...
oct81
oct81

... people this would only be 6  1014 watts. We would need 670 billion more Earth’s doing the same thing to equal the energy output of the Sun. ...
HW 5 Solutions What are “black smokers?” Where in our solar
HW 5 Solutions What are “black smokers?” Where in our solar

... discovered that some of the oldest life forms on earth live in these harsh environments. This was a revolution in our understanding of life, since these organisms gain their energy not from the sun but from the interior of the earth itself—geothermal energy. Black smokers, and with them possibly lif ...
AP Physics - Universal Gravitation
AP Physics - Universal Gravitation

... 5.A projectile is launched from the surface of a planet (mass = M, radius = R). What minimum launch speed is required if the projectile is to rise to a height of 2R above the surface of the planet? Disregard any dissipative effects of the atmosphere. A) B) C) D) E) 6. What is the kinetic energy of ...
Name: ______________________________#  __________ Study Guide is due WEDNESDAY November 2
Name: ______________________________# __________ Study Guide is due WEDNESDAY November 2

... Tell what happens in that layer/part: 1. Core: ______________________________ _________________________ 2. __________:The dense middle layer of the sun that takes a very long time for energy to get through 3. Convection Zone: _______________________ ________________________ 4. ___________: The visib ...
Tidal Mechanism as an Impossible Cause of the Observed Secular
Tidal Mechanism as an Impossible Cause of the Observed Secular

... of the increase in AU. Note that the value of aP p for Earth is about 100-times larger than that for Mars. Also note that the most accurate observational data for the planetary motion is from an Earth–Mars distance measurement (e.g., Standish 2005; Pitjeva 2005). Thus, let us consider the Earth–Mars ...
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... 2. An electron and a positron meet, each with a rest mass of 9.11 x 10-31 kg, and are converted to energy (gamma rays). How much energy is converted from the rest energy into gamma rays in the collision? ...
Celestial Sphere, Celestial equator, N
Celestial Sphere, Celestial equator, N

Revolutions of Earth
Revolutions of Earth

... heavens, are a set of spheres layered on top of one another. Each object in the sky is attached to a sphere and moves around Earth as that sphere rotates. From Earth outward, these spheres contain the Moon, Mercury, Venus, the Sun, Mars, Jupiter, and Saturn. An outer sphere holds all the stars. Sinc ...
the Study Guide
the Study Guide

... Glossary of terms Alien: A foreigner. A space alien would be an alien from outer space. Android: A robot with a human form. Atmosphere: The canopy of air surrounding the Earth. It is divided into five layers or "spheres": the Troposphere, Stratosphere, Mesosphere, Thermosphere and Exosphere. The Th ...
Astronomy
Astronomy

... asteroid/comet impact hazards and the Sun's effects on communication, navigation, and high-tech devices.[4D] • compare and contrast the scale, size, and distance of the Sun, Earth, and Moon system through the use of data and modeling.[6A] • compare and contrast the scale, size, and distance of objec ...
Scale Model of the Solar System
Scale Model of the Solar System

... • Other, later, collisions thought to cause some irregularities – Late collisions between planetesimals thought to cause unusual tilts of Venus, Uranus, and possibly Pluto – Formation of the Moon is thought to be the result of a collision between Earth and a very large planetesimal – Mercury may hav ...
Exam 1 Review
Exam 1 Review

... scientists know the properties of the Earth’s interior? Do you know what types of geologic formations are located above the three different plate boundaries? Can you describe the basic structure of the Earth’s atmosphere? Do you understand how the ozone layer prevents UV photons from getting to the ...
1. (5 points) Place the following in order of DENSITY beginning with
1. (5 points) Place the following in order of DENSITY beginning with

... on the status of Pluto. Using any combination of your knowledge of the 8 major planets and/or comets and other minor planets to give 3 bullet points arguing that Pluto is NOT a planet. ...
Charting The Universe - University of Windsor
Charting The Universe - University of Windsor

... • Earth spins on its own axis, orbits around the Sun, which in turn, moves around the center of the Milky Way galaxy. Complex motion! • The earth’s axis also precesses ….or wobbles, like a spinning top. • Cause? Gravitational forces (torques) of the Sun and Moon. • 23.5º tilt angle remains fixed. ...
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Rare Earth hypothesis



In planetary astronomy and astrobiology, the Rare Earth Hypothesis argues that the origin of life and the evolution of biological complexity such as sexually reproducing, multicellular organisms on Earth (and, subsequently, human intelligence) required an improbable combination of astrophysical and geological events and circumstances. The hypothesis argues that complex extraterrestrial life is a very improbable phenomenon and likely to be extremely rare. The term ""Rare Earth"" originates from Rare Earth: Why Complex Life Is Uncommon in the Universe (2000), a book by Peter Ward, a geologist and paleontologist, and Donald E. Brownlee, an astronomer and astrobiologist, both faculty members at the University of Washington.An alternative view point was argued by Carl Sagan and Frank Drake, among others. It holds that Earth is a typical rocky planet in a typical planetary system, located in a non-exceptional region of a common barred-spiral galaxy. Given the principle of mediocrity (also called the Copernican principle), it is probable that the universe teems with complex life. Ward and Brownlee argue to the contrary: that planets, planetary systems, and galactic regions that are as friendly to complex life as are the Earth, the Solar System, and our region of the Milky Way are very rare.
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