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Star Formation
Star Formation

... Nebula material is uniformly spread through the proto-planetary disk Different materials condense at different temperatures which leads to rock/metal worlds close to Sun & gas giants further away ...
1. Evolution of the Solar System— Nebular hypothesis, p 10 a
1. Evolution of the Solar System— Nebular hypothesis, p 10 a

... c. Heat of conversion of gravitational to thermal energy fired Sun into star in center of nebular cloud d. Cooling allowed condensation of rocky particles in inner solar system, that collided to become planets—accretion i. Their accretion created gravitational heat of contraction— warm but fairly sm ...
Reviewing concepts covered this year Looking Back
Reviewing concepts covered this year Looking Back

... become at the end of its life cycle? What is Planetary or Stellar nebula composed of? What do the most massive of all stars eventually become at the end of their life cycles? ...
Saturn - Cloudfront.net
Saturn - Cloudfront.net

... system but lately one planet called Pluto was de-classified from being a planet. • All planets fall in 2 groups Inner Terrestrial Planets: Mercury , Venus, Mars and Earth are called inner planets or terrestrial planets. Outer Gas Planets: Jupiter , Saturn, Uranus, Neptune are also called the outer p ...
Dark blue dot not so dark
Dark blue dot not so dark

... “This can happen if there is enough gas in the cloud core to provide resistance,” said the paper’s lead author, Bo Reipurth of the Institute for Astronomy at the University of Hawaii at Manoa. “Sometimes there is so much gas in the core that the two close stars spiral all the way in and collide with ...
lesson 1 Solar system - science
lesson 1 Solar system - science

... through space, it collides with lumps of material which burn up in the atmosphere. ...
or view
or view

... The formation of the Sun had a dramatic effect on the temperatures across the solar nebula, introducing a temperature range that stretched from about 2000K near the Sun to less than 50K at the outer regions. The heat in the inner Solar System only allowed materials with high condensation temperature ...
"WITH THE STARS" i - Royal Astronomical Society of Canada
"WITH THE STARS" i - Royal Astronomical Society of Canada

... go, the "Sun's light, travelling 186,000miles a its dense atmosphere and cloud blanket, which, while it reflects sunlight well, prevents astronsecond or 6 trillion miles in a year, takes 8 omers on Earth from ever seeing the Venusian minutes to ·reach Earth. The light of the next surface itself. Bec ...
Science CRCT Jeopardy 1
Science CRCT Jeopardy 1

... A. The stars in a constellation revolve around the Earth together. B. The stars in a constellation rotate very slowly on their axes. C. Earth’s gravity attracts the stars and holds them in place. D. Stars appear not to move because they are so far away from the Earth. ...
Astronomy Vocabulary File
Astronomy Vocabulary File

... bodies that travel around the sun Nebula—a large cloud of dust and gas in interstellar space; the location of star formation Solar nebula—the nebula that formed into the solar system Planetesimal—the tiny building block of the planets that formed as dust particles stuck together and grew in size Rot ...
406P PPT - Why Water and the Hunt for Exoplanets
406P PPT - Why Water and the Hunt for Exoplanets

... • Have same % of water content in cells (50 – 65 %) • Same % of salt in cells • (about 1 % on average) • 1/3 of salt in sea water (about 3.5 % on average) ...
Cosmology questions (Introduction)
Cosmology questions (Introduction)

... various positions within their orbits, calculate how long the trip would last. Assume a start from Earth, with Mars being the next stop. After Pluto, a direct route to Mercury, then Venus before returning to Earth. Don't include ay days on Earth. ...
9/20/16 Tuesday Honors Earth to Mars article
9/20/16 Tuesday Honors Earth to Mars article

... When Earth and Mars are at their theoretically closest point of 54.6 million km, it would take a signal from Earth about 3 minutes to make the journey, and then another 3 minutes for the signals to get back to Earth. But when they’re at their most distant point, it takes more like 21 minutes to send ...
Name
Name

... planets have three layers a crust, mantle and a core, but thickness of the layers differs between the planets. The inner planets are separated from the outer planets by the asteroid belt that lies between Mars and Jupiter. ...
Second Book: Student´s Reference Book ……
Second Book: Student´s Reference Book ……

... Milky Way, also called the Galaxy, a group of stars in the shape of a saucer, which include the Sun and its Solar System. For an observer on Earth, the Galaxy appears as a faint band of light which can be seen at night extending across the sky, especially on clear summer nights with no moon. Structu ...
File
File

... the third of the 4 gas giants. Uranus is 14.5 bigger then Earth. It have that blue and green color and it does not have a hard surface and actually the surface was layers of clouds.Uranus is outside the orbit of Saturn and inside the orbit of Neptune. It is very far from the sun so Uranus is very co ...
4550-15Lecture35
4550-15Lecture35

... Mars at first appears depleted in volatile elements. It has a much smaller atmosphere than the Earth (surface pressures are 0.006 atm). The Martian atmosphere is dominated by CO2, with N2 as the second most abundant component. However, significant amounts of liquid water existed on the Martian surfa ...
Click here to 2016 The Universe Diagnostic Test
Click here to 2016 The Universe Diagnostic Test

... Be able to calculate the weight of objects on different planets Know that the Sun is a star Know that there are billions of stars in our galaxy, and billions of galaxies in the Universe Describe our place in the galaxy Explain how we know about other stars and galaxies Explain how stars change drama ...
PHYS 390 Lecture 9 - Planetary atmospheres 9
PHYS 390 Lecture 9 - Planetary atmospheres 9

... • probably once contained a large amount of H2O, which was driven out by high temperatures; atmospheric deuterium:hydrogen ratio is 0.016, compared to 0.00016 on Earth, suggesting evaporation from upper atmosphere • surface is highly volcanic, extensive lava flows in last 500 million years Earth: • ...
Slide 1
Slide 1

... Earth Solar System Milky way Local group Universe ...
day 2 - The Solar System Presentation
day 2 - The Solar System Presentation

... belt also separates the inner and outer planets) ...
SOLAR SYSTEM
SOLAR SYSTEM

...  Largest object in our solar system  Center of the solar system  109 times bigger than Earth  About 4.5 billion years old  2,000,000 degrees Celsius  The sun is Earth’s main source of energy. It powers wind, ocean currents, and the water cycle. It provides light and heat that most living thing ...
4.7_Earth,_Moon,_Sun
4.7_Earth,_Moon,_Sun

... This standard focuses on the Earth-moon-sun system and includes knowledge related to the motions of this system and the results of our unique position in it. This includes the presence of an atmosphere, liquid water, and life. It is intended that students will actively develop scientific investigati ...
Final Study Guide copy
Final Study Guide copy

... pole that are high enough above the horizon they don’t rise or set The Direction of Spin - Looking down on the north pole, the Earth spins counterclockwise. Looking straight on at the Earth, it spins in an Eastward direction. This means the celestial sphere overhead moves in a westward direction fro ...
Homework #1 10 points Question #1 (2 pts) Even in ancient times
Homework #1 10 points Question #1 (2 pts) Even in ancient times

... Even in ancient times, astronomers knew that planets vary in brightness over the course of several months or even years. Explain, why this observation can not be used to rule out the geocentric model, in which all planets and the Sun orbit the Earth on circular orbits. Ignore the epicycles, i.e. ass ...
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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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