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Sirius Astronomer - Orange County Astronomers
Sirius Astronomer - Orange County Astronomers

... only partially so. The rock drilled is a red-colored slab of flat, finegrained, sedimentary bedrock shot through with mineral veins of calcium sulfate, which formed in water. Elements found in the drill sample included sulfur, nitrogen, hydrogen, oxygen, phosphorus and carbon, key chemical ingredien ...
(the largest solar system planet) represents at
(the largest solar system planet) represents at

... orbital plane is tilted approximately 18 degrees above the elliptical plane and is roughly the size of our earth’s moon. Given the orbital characteristic and size of Pluto, the science community recently reassigned Pluto as a dwarf planet. The Terrestrial Planets The terrestrial planets represent th ...
Lecture 3 - Night Sky and Motion of the Earth around the Sun
Lecture 3 - Night Sky and Motion of the Earth around the Sun

... day of spring. Note it is a point on the sky, not the earth. ...
Henry6SCI5 (H6SCIALL)
Henry6SCI5 (H6SCIALL)

... this type deforestation increased? A. soil erosion B. soil moisture C. fertilizers D. microorganisms 21. Many cities allow people to water their lawns only during the evening or early morning. Why do the cities prevent people from watering during the day? A. to reduce erosion B. to conserve water su ...
01 - cloudfront.net
01 - cloudfront.net

... 19. C 20. B 21. D 22. B 23. C 24. B 25. They move across the sky; they may revolve around another star; they either move away from or toward our solar system. 26. the apparent shift in the wavelength of light emitted by a light source moving toward or away from an observer 27. that those galaxies ar ...
Astr 40 Final Exam Review ()
Astr 40 Final Exam Review ()

... 90. Black holes will NOT certainly destroy you at the event horizon, as you fall in. Supermassive black holes have low tidal force at the event horizon. 91. The Milky Way is a typical large spiral galaxy. 92. Dark matter is thought to exist in galaxies and galactic clusters. 93. A galaxy with a disk ...
Orbits of the planets - University of Iowa Astrophysics
Orbits of the planets - University of Iowa Astrophysics

... Copernicus (1500 A.D.) suggested that it would be simpler to have the planets orbit the Sun. (demo 8A10.55) Moves Earth from center of Universe. Copernican principle – we do not occupy a special place in the Universe. ...
Maps & Projections - New York Science Teacher
Maps & Projections - New York Science Teacher

... California is 45 degrees west, what time is it in California? ...
ASTRO OTTER (for secondary students)
ASTRO OTTER (for secondary students)

... so bright compared to other stars, the size of the sun is compared to planets and how the sun produces energy is described briefly. The lesson stresses that energy from the Sun is the basis of most life on Earth. In conclusion, the final stages of the Sun's Life Cycle are described. TEK Gr.5- 8(D), ...
Earths Place in the Universe
Earths Place in the Universe

... • Our sun is just 1 of 100 billion stars that make up the milky way. • It is difficult to determine its size and shape because we are located in the milky way. • The solar system is located in an outer edge of the disc-shaped Milky Way Galaxy, which spans 100,000 light years. ...
rotate
rotate

... orbit another celestial body 23.5o tilt ...
File - Starry Starry Night!
File - Starry Starry Night!

... Several gases, including water vapor, carbon dioxide, methane, perhaps a little ammonia and either carbon monoxide or nitrogen gas make up the gaseous envelope of the plume. Enceladus displays at least five different types of terrain. Parts of Enceladus shows craters no larger than 35 km in diameter ...
Quiz Lecture 3
Quiz Lecture 3

... Which one of the following assumptions do astronomers use as they attempt to explain the universe? a. Effects can be unrelated to any cause. b. The force of gravity is caused by objects rotating or spinning. c. A object can exhibit a change in motion without a force being applied to it. d. Scientifi ...
tail can extend millions of kilometers into space
tail can extend millions of kilometers into space

... where they are found In the outermost region asteroids appear to be rich in organic material with reddish brown to black surfaces ...
Our Solar System
Our Solar System

... -Distinguish between questions that can be answered by science and those that cannot, and between problems that can be solved by technology and those that cannot with regards to solar system formation. -Estimate quantities of distances in parsec. Estimate the age of the solar system. -Describe and a ...
Subject: Earth Science Grade: 11 Unit #: 1 Title: Astronomy
Subject: Earth Science Grade: 11 Unit #: 1 Title: Astronomy

... galaxy and the galaxy’s place in the universe. The students will have to incorporate the Sun’s influence on the Earth. They will show understanding of how Earth’s orbit, the Moon’s orbit, and gravitation are related to the Sun and each other. They will need to discuss what comets and asteroids are a ...
Our Solar System Study Guide 4 grade standard to be tested: S4E2
Our Solar System Study Guide 4 grade standard to be tested: S4E2

... The solar system is made up of the Sun, planets, moons, and other objects that orbit the Sun. The nearest star to Earth is the Sun. We are able to see planets because light from the Sun reflects them. The Sun gives off light and heat. Both inner and outer planets orbit the Sun and are part of the so ...
EARTH & SPACE SCIENCE
EARTH & SPACE SCIENCE

... more than 300 times that of Earth. The orbital period of Jupiter is almost 12 years. Jupiter rotates on its axis faster than any other planet – once every 9 hours and 50 minutes. Four of Jupiter’s 60 moons are the size of small planets. Jupiter also has several thin rings made up of millions of part ...
presentation format
presentation format

... The time it takes for a planet to go around the Sun is  related to the size of its orbit; more distant planets take  longer to go around.                                                      (Period in years)^2 = (semimajoraxis in a.u.)^3 ...
summary - guideposts
summary - guideposts

... Modern astronomy reveals that the matter in our solar system was formed in the big bang, and the atoms heavier than helium were cooked up in a few generations of stars. The sun and planets evidently formed from a cloud of gas in the interstellar medium. In general, planets that are farther from the ...
Worksheet 1
Worksheet 1

... a. Venus, Jupiter, and Neptune b. Mercury, Venus, and Pluto c. Mercury, Venus, and Earth d. Jupiter, Saturn and Uranus e. Mercury, Saturn, and Pluto 23. One explanation of why the planets near the Sun are composed mainly of rock and iron is that a. The Sun’s magnetic field attracted all the iron in ...
How common are habitable planets?
How common are habitable planets?

... from Earth, allowed them to estimate that 22 percent of all sun-like stars in the galaxy have Earthsize planets in their habitable zones. "The primary goal of the Kepler mission was to answer the question, When you look up in the night sky, what fraction of the stars that you see have Earth-size pla ...
click here for scale model worksheet
click here for scale model worksheet

... Scale Model of Solar System: If the Sun was the size of a basketball, then…. ...
Chapter 10
Chapter 10

... four “stars” orbiting Jupiter. ...
Document
Document

... Explaining the Characteristics of the Solar System 1. The orbits of the planets lie in the same plane because the rotating solar nebula collapsed into a disk, and the planets formed in that disk. Objects are co-eval (4.) 2. The division into small inner and giant outer planets rests upon the amoun ...
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Astrobiology



Astrobiology is the study of the origin, evolution, distribution, and future of life in the universe: extraterrestrial life and life on Earth. This interdisciplinary field encompasses the search for habitable environments in our Solar System and habitable planets outside our Solar System, the search for evidence of prebiotic chemistry, laboratory and field research into the origins and early evolution of life on Earth, and studies of the potential for life to adapt to challenges on Earth and in outer space. Astrobiology addresses the question of whether life exists beyond Earth, and how humans can detect it if it does. (The term exobiology is similar but more specific—it covers the search for life beyond Earth, and the effects of extraterrestrial environments on living things.)Astrobiology makes use of physics, chemistry, astronomy, biology, molecular biology, ecology, planetary science, geography, and geology to investigate the possibility of life on other worlds and help recognize biospheres that might be different from the biosphere on Earth. The origin and early evolution of life is an inseparable part of the discipline of astrobiology. Astrobiology concerns itself with interpretation of existing scientific data; given more detailed and reliable data from other parts of the universe, the roots of astrobiology itself—physics, chemistry and biology—may have their theoretical bases challenged. Although speculation is entertained to give context, astrobiology concerns itself primarily with hypotheses that fit firmly into existing scientific theories.The chemistry of life may have begun shortly after the Big Bang, 13.8 billion years ago, during a habitable epoch when the Universe was only 10–17 million years old. According to the panspermia hypothesis, microscopic life—distributed by meteoroids, asteroids and other small Solar System bodies—may exist throughout the universe. According to research published in August 2015, very large galaxies may be more favorable to the creation and development of habitable planets than smaller galaxies, like the Milky Way galaxy. Nonetheless, Earth is the only place in the universe known to harbor life. Estimates of habitable zones around other stars, along with the discovery of hundreds of extrasolar planets and new insights into the extreme habitats here on Earth, suggest that there may be many more habitable places in the universe than considered possible until very recently.Current studies on the planet Mars by the Curiosity and Opportunity rovers are now searching for evidence of ancient life as well as plains related to ancient rivers or lakes that may have been habitable. The search for evidence of habitability, taphonomy (related to fossils), and organic molecules on the planet Mars is now a primary NASA objective on Mars.
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