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Our solar system includes the sun and the eight
Our solar system includes the sun and the eight

... of swirling gas that has lasted for hundreds of years. Jupiter does not have a solid surface - it is made up of gases. The bands that we see when looking at Jupiter are the tops of clouds high in its atmosphere. Saturn is the second largest planet in the Solar System. It has wide rings around its ce ...
document
document

... • Indian Institute of Astrophysics conforms his findings. • His wife Indrani Debi, wishes he hadn’t found the comet. • A British scientist writes a paper based on Duttada’s discovery. • A conference of international experts is convened to yield a clue to the cosmic puzzle. • Duttada and the British ...
Assessment - Findlay City Schools
Assessment - Findlay City Schools

... Current information about the solar system may change. Because information changes often, scientists cannot use it. Nothing new was discovered about the solar system after 1930. New moons will be discovered around the planets in our solar system. ...
to your Galactic Explorer ID card!
to your Galactic Explorer ID card!

... ...
Our Cosmic Neighborhood From our small world we have gazed
Our Cosmic Neighborhood From our small world we have gazed

... carbon dioxide, with traces of poisonous gases such as sulphur dioxide. Mars's carbon dioxide atmosphere is extremely thin. Jupiter, Saturn, Uranus, and Neptune are primarily hydrogen and helium. When Pluto is near the sun, it has a thin atmosphere, but when Pluto travels to the outer regions of its ...
CST Prep- 8th Grade Astronomy 19. Sketch a planet
CST Prep- 8th Grade Astronomy 19. Sketch a planet

... 9. When the shadow of one celestial body falls on another, a(n) ...
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File

... - small particle from an asteroid or comet - orbits the sun - A meteoroid that burns up in the Earth's atmosphere - a shooting star. - A meteoroid that survives its passage through the Earth's atmosphere and impacts the Earth's surface. ...
CRCT Review 1
CRCT Review 1

... B. London receives more sunshine in the winter than other places farther south. C. London's climate is affected by warm ocean currents that flow from the south. D. The Sun's rays shine at a higher angle in London than in Chicago. ...
Exploration of Space
Exploration of Space

...  Mercury, Venus, Mars, Jupiter, and Saturn ...
Terrestrial planets
Terrestrial planets

...  Gas giants are larger and more massive than terrestrial planets, but much less dense, and are mainly composed of rock and metal.  All four gas giants have ring systems made of dust and icy debris that orbit the planets. ...
Word Meaning The Solar System and Beyond – Word Bank
Word Meaning The Solar System and Beyond – Word Bank

... Imaginary vertical line that goes from one pole of the Earth to the other. The Earth spins around its axis. ...
How has the model of the solar system changed over time?
How has the model of the solar system changed over time?

... the 2,000 years of belief! Kepler had a hard time convincing other scientists of his time that planet orbits are not circles. Even the great scientist, Galileo, disagreed with Kepler. ...
Review Unit 1 - Effingham County Schools
Review Unit 1 - Effingham County Schools

... #13 Mercury terrestrial planet, smallest planet, closest to sun # 14 Venus terrestrial planet, closest to earth in size and mass, hottest atmosphere due to greenhouse effect, completely enveloped in clouds that produce sulfuric acid rain #15 Earth terrestrial planet, only breathable atmosphere and w ...
Notes
Notes

... E. _________________________ holds the solar system together 1. We usually think of gravity as the ____________________ that pulls us to the Earth. 2. True definition of gravity is the attractive force between ____________. 3. The more _________ an object has the ________ its gravitational pull. a. ...
Early Observers (The Beginnings of Astronomy)
Early Observers (The Beginnings of Astronomy)

... Planets traveled in smaller circular paths as they traveled around the Earth (epicycles and deferents) Popular model of universe for 1,500 years. ...
Outer Space Study Guide
Outer Space Study Guide

... Star: A large, hot ball of gases that gives off its own light and held together by gravity. Galaxy: A group of star clusters held together by gravity. White Dwarf: These are basically grandparent stars that are old and are going dead. Black Dwarf: These are basically the “skeletons” left of a star w ...
Click here
Click here

... What does a star’s life cycle depend on? Circle one: ...
Intro ES Sense of Time and Space Test Key
Intro ES Sense of Time and Space Test Key

... 46. (4 pts.) State two differences between inner and outer planets besides their distance from the sun.! inner planets ...
Topic 3: Astronomy
Topic 3: Astronomy

... light speed, it would take more than four years to get to the closest star) 3) fuel -- if we could go that fast, could we afford the fuel that would be necessary for such a long journey and the return trip home? Radio transmissions have been sent from Earth since 1974 with a message for anyone “list ...
The Planets
The Planets

... 2. 1 day on Jupiter is less than 10 hours on Earth ...
Geocentric vs. Heliocentric Models of the Solar System
Geocentric vs. Heliocentric Models of the Solar System

... If a “theory” makes no predictions at all, it has no scientific value. “The scientific method is designed to yield – eventually – an objective view of the world...” ...
What is the Solar System? I Arrangement The Sun – in the middle on
What is the Solar System? I Arrangement The Sun – in the middle on

... origin of the Universe. The idea of it comes from that the Universe expands, so it had to be very small in the past, and its density was large. The base of this theory is the assumption that about 15 billion years ago every present today matter was concentrated in a single infinitesimal point of inf ...
Quiz # 2
Quiz # 2

... Bonus. The spectrum of a star shows an equivalent set of dark absorption lines to those of the Sun, but with one exception. Every line appears at a slightly longer wavelength, shifted toward the red end of the spectrum. What conclusion can be drawn from this observation? A) A cloud of cold gas and ...
Scale of Terrain on Mars
Scale of Terrain on Mars

... living organisms on Earth. ...
Astronomy
Astronomy

... materials, perhaps with small rocky cores. k. The fifth outer planet Pluto has an unknown composition, but appears solid. l. Moons are natural satellites of planets that vary widely in composition. m. Comets orbit the sun and consist mostly of frozen gases. n. Asteroids are rocky or metallic iron ob ...
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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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