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Unit E Space Exploration Section 1 Notnd Space has changed over
Unit E Space Exploration Section 1 Notnd Space has changed over

...  Cold frozen ball of methane  Disqualified as a Planet due ...
ppt-file 2.4 MB
ppt-file 2.4 MB

... Simple assumptions about the likely distribution of planets in the Milky Way suggest that many water worlds exist in our Galaxy, but elude existing methods of detection. "There could be as many as one billion stellar systems with potentially habitable zones," says Siegfried Franck, a geophysicist at ...
Earth in Space - Sciwebhop.net
Earth in Space - Sciwebhop.net

... moving away from us at very high speed The unverse might have been created in a gigantic explosion - with all the galaxies moving apart They change - maybe swell or collapse ...
Skyworks Links Stage 2
Skyworks Links Stage 2

... apparent movement of the Sun, stars, visible planets and the Moon if visible. ...
Homework Problems for Quiz 1 – AY 5 – Spring 2013
Homework Problems for Quiz 1 – AY 5 – Spring 2013

... dust toward either star) a) What are the relative distances of the two stars? ...
The Solar System Song - Sing-A
The Solar System Song - Sing-A

... The sun’s a star in the Milky Way spinnin’ with the galaxy And the planets orbit ‘round the sun with great velocity. Mercury, Venus, Earth and Mars, the inner planets go Jupiter, Saturn, U-ran-us, Neptune, NOT Pluto! The Solar System, eight planets ‘round the sun Ro-tating and revolving too In orbit ...
Astronomy 101 Review - Physics and Astronomy
Astronomy 101 Review - Physics and Astronomy

The Solar System
The Solar System

Summary of week 1:
Summary of week 1:

Sample Assessment Items
Sample Assessment Items

... b. Mars is moving much faster than the stars. c. The stars are much farther away than Mars, so they appear not to move. d. Earth and the stars move in one direction, and Mars moves in the other. Answer: The stars in the night sky look as if they are slowly moving because _______________. a. the Eart ...
Lesson 2_GoingSolar
Lesson 2_GoingSolar

Рабочий лист 1.2
Рабочий лист 1.2

... I'm a giant gas planet out in space, There are bands or stripes all over my face. When it comes to size, I'm number two, I have bright rings. That's an easy clue. Which planet am I? __________________________________ 2) Прочитайте текст. Meteorites are bits of rocks or metal that fall from space. Th ...
SOL Study Book
SOL Study Book

... 1. The surface of the moon is rocky with craters and mountains. 2. The moon is about one-quarter the diameter of the Earth and one-eightieth of its mass. 3. The moon has extreme temperatures, virtually no atmosphere, no water, and no life. 4. When the moon’s face appears to increase in size, it is w ...
Video review
Video review

... is in a frozen state, allowing the giant gas and ice planets to form. 13. The blue-green color of the giant ice planet Uranus is due to an upper layer of __________________ gas. 14. The likely explanation of the Moon’s craters having the same age, the large number of icy bodies in the Kuiper belt, t ...
Sun, Moon, and Earth Notes
Sun, Moon, and Earth Notes

... universe- Everything that exists anywhere in space. It includes all the galaxies, stars, planets, and other bodies that they may contain. star- A huge ball of glowing gas that appears as a bright point in the night sky. Astronomers think there are more that 200 billion stars in the universe. sun- Th ...
POWERPOINT JEOPARDY - Mr. Dalton
POWERPOINT JEOPARDY - Mr. Dalton

Integrative Studies 410 Our Place in the Universe
Integrative Studies 410 Our Place in the Universe

... How far away is the Moon? • The Greeks used a special configuration of Earth, Moon and Sun (link) in a lunar eclipse • Can measure EF in units of Moon’s diameter, then use geometry and same angular size of Earth and Moon to determine Earth-Moon distance ...
stars and The Solar System 8th Science test2
stars and The Solar System 8th Science test2

... 10. (a) Name the planet nearest to Sun (b)Name the brightest planet in the sky (c)Which planet is often called a morning or an evening star? (d)Name a planet which rotates from east to west (e)Which planet is called Red planet? (f)Which is the largest planet of the solar system? (g)What is the mass ...
The Solar System - University of Sioux Falls
The Solar System - University of Sioux Falls

red giant - Teacher Pages
red giant - Teacher Pages

... reaction carried out within the sun? What is the widely accepted scientific model that describes the formation of the solar ...
Barycenter Our solar system consists of the Sun and the
Barycenter Our solar system consists of the Sun and the

... Orbit means to move in a curved path around another something. In astronomy, celestial bodies are generally described as moving or orbiting some other celestial body. For example, the Moon is said to orbit or revolve around the Earth. The Earth doesn’t stays in position as the Moon circles it. Just ...
Our Solar System - Livingstone High School
Our Solar System - Livingstone High School

... Discovered through math 7 known moons Triton largest moon Great Dark Spot thought to be a hole, similar to the hole in the ozone layer on Earth ...
unit1solarsystem-practicetest
unit1solarsystem-practicetest

... c. The Earth’s rotation d. The Earth’s revolution 3. The year is based on the a. Earth’s rotation b. Earth’s revolution c. Moon’s rotation d. Moon’s revolution 4. Which of the following planets is not considered a gas giant? a. Jupiter b. Saturn c. Venus d. Neptune 5. During the formation of our sol ...
Explain. How is Copernicus`s description of the system of planets
Explain. How is Copernicus`s description of the system of planets

Space Flight to the Stars - Laureate International College
Space Flight to the Stars - Laureate International College

... the last time in 1972. With their Apollo spacecraft travelling about 30 times the speed of a jet airplane, the astronauts’ trip to the Moon took four days.  It has no atmosphere and little or no ...
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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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