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4th Grade Science Vocabulary Chapter 2
4th Grade Science Vocabulary Chapter 2

... solar system? ...
NS2-M3C16_-_Asteroids,_Comets,_and_Meteorites_Exam
NS2-M3C16_-_Asteroids,_Comets,_and_Meteorites_Exam

... A chunk of rock or metal orbiting in space, similar to an asteroid but much smaller, by current convention not exceeding a meter in size A B C ...
A105 Stars and Galaxies
A105 Stars and Galaxies

... Constraints on star systems: 1) Old enough to allow time for evolution (rules out high-mass stars - 1%) 2) Need to have stable orbits (might rule out binary/multiple star systems - 50%) 3) Size of “habitable zone”: region in which a planet of the right size could have liquid water on its surface. Ev ...
The ExOoS Mission - Extraterrestrial Octopus on Steroids
The ExOoS Mission - Extraterrestrial Octopus on Steroids

... allowed the detection and the study of living organisms and their traces in environments traditionally unconceivable to host life (Harrison et al. 2013). Life is a common phenomenon on earth, having been detected in almost any kind of environment; from acidic lakes such as Rio tinto in Spain, to the ...
PHYS103 Hour Exam No. 2 Preview 2 Page: 1 1 According to
PHYS103 Hour Exam No. 2 Preview 2 Page: 1 1 According to

... b. is the same no matter where those objects are. c. is larger for objects farther from the Earth. d. extends only as far as the Earth’s atmosphere and vanishes for objects like an orbiting space shuttle. 2 The Law of Inertia says that if an object is not acted on by any outside force, its accelerat ...
Life in the Universe
Life in the Universe

... that it remains liquid thanks to a hydrothermal vent at the lake bottom. Its waters are believed to harbour a low concentration of bacterial life, despite the fact that no sunlight has reached it for over a million years. The meager ecosystem is probably nourished by hydrothermal energy from the flo ...
here - Stargazers Club
here - Stargazers Club

... Video - Habitable Exoplanets - Scientists use Radial Velocity (the Wobble method) to find exoplanets Exoplanets are extra solar planets, planets outside our solar system Wobble method - an orbiting planet will pull on its star, causing it to wobble as it rotates. We can detect this wiggle in the lig ...
HW4 due - Yale Astronomy
HW4 due - Yale Astronomy

... than  the  Sun.  How  far  away  could  a  Type  Ia  supernovae  be,  and  still  be  detected  with   the  Hubble  Space  Telescope?    Express  your  answer  in  light  years.   ...
ph507-16-1exo1
ph507-16-1exo1

... Much more massive terrestrial planets could exist (>10 Earth masses), though none are present in the Solar System. The Solar system also has asteroids, comets, planetary satellites and rings we won’t discuss those in this course. Core: A central metallic core, mostly iron with a surrounding silicate ...
The Night Sky
The Night Sky

... phenomena. In the early evening of June 5th, the planet Venus will pass directly between the Sun and Earth, an event known as a transit. The planet will be seen as a small black dot moving slowly across the face of the Sun. Such an alignment is so rare that it won’t happen again until the year 2117. ...
here for the answers
here for the answers

... a) St John at Hampstead c) St Margaret's Lee b) St Bart's Burstow d) Westminster Abbey ...
Astrophysics 2012_2013 Grade 10 April 29, 2013
Astrophysics 2012_2013 Grade 10 April 29, 2013

... 9. Which planets in our Solar System currently have ice/dust rings? 10. Which asteroid was once classified as a planet in the early 1800's? 11. Which planet is home to the largest mountain in the Solar System, Olympus Mons? 12. Which two planets rotate slower than they revolve around the sun (in oth ...


... simulated six atmospheres with high concentrations of CO2 and CH4 . The response of atmospheric chemistry to the variation of the ultraviolet (UV) radiation from its star, in cases where the atmosphere contains a high concentration of oxygen has been studied by Segura et al. (2010). However is likel ...
Planetary Taxonomy
Planetary Taxonomy

... Roundness is almost never directly observable and is therefore inherently problematic as a basis for classification. Can we use size or mass as a proxy to establish roundness? The critical diameter D above which a self-gravitating body of density ρ overcomes material strength S is of order: ...
DSST® ASTRONOMY  EXAM INFORMATION
DSST® ASTRONOMY EXAM INFORMATION

... used as textbooks in college courses of the same or similar title at the time the test was developed. You may reference either the current edition of these titles or textbooks currently used at a local college or university for the same class title. It is recommended that you reference more than one ...
The Origin of Our Solar System
The Origin of Our Solar System

... – Believed force was exerted by contact betwn physical entities and the universe was filled with vortices of “whirling invisible particles.” – Posited that the sun and planets formed when a large vortex contracted and condensed. ...
Introduction to Earth Science - The Federation of Galaxy Explorers
Introduction to Earth Science - The Federation of Galaxy Explorers

... Feel free to modify the presentation below according to the interests of your group of Galaxy Explorers! Encourage participation by having the students explain the Earth’s life support systems as well as their concepts for the space transporter. Remember that the goal here is to stimulate imaginatio ...
2.1.1 Study: The Big Bang Theory
2.1.1 Study: The Big Bang Theory

... over the course of one million years. After the core, there is the radiative zone, where the energy moves outward in the form of photons, and the convective zone, where energy moves via the movement of gas. The photosphere is the surface of the sun, and this is where the visible light is emitted. Th ...
LRR Slides
LRR Slides

... elements exist in the atmosphere and at what elevation those elements can be found. • Data obtained by the SSS flight can be compared to similar research conducted in the past to see how the atmosphere has changed ...
ppt - Astronomy & Physics
ppt - Astronomy & Physics

... planet with high cloud cover (a=0.75) with dark soil (a=0.1) ...
Tour of the Universe
Tour of the Universe

... ● 6 of the planets have moons orbiting them. Them bigger ones have more moons than the  smaller ones.  ● Earth's moon was formed 4.5 billion years ago from material ejected when a collision  occurred between a Mars­size object and the Earth.  Asteroids  ● Rocky objects orbiting the Sun­ with million ...
Lesson 1 – Explain – Page 375 “The Structure of
Lesson 1 – Explain – Page 375 “The Structure of

...  A dwarf planet is a spherical object that orbits the Sun. It is not a moon of another planet and is in a region of the solar system where there are many objects orbiting near it.  Unlike a planet, a dwarf planet does not have more mass than objects in nearby orbits.  Dwarf planets are made of ro ...
Milky Way galaxy - Uplift North Hills Prep
Milky Way galaxy - Uplift North Hills Prep

... Before October 6, 1923, astronomers thought the Andromeda Nebula and similar objects were bright pockets of matter inside the Milky Way. On that day astronomer Edwin Hubble noticed, looking at the photograps, a particular type of star inside the Andromeda Nebula. Hubble realized that the star (Ceph ...
Powerpoint
Powerpoint

... Solar system formed out of a "whirlpool" in a "universal fluid". Planets formed out of eddies in the fluid. Sun formed at center. Planets in cooler regions. Cloud called "Solar Nebula". This is pre-Newton and modern science. But basic idea correct, and the theory evolved as science advanced, as we'l ...
Chapter 4 Practice Questions
Chapter 4 Practice Questions

... The planets do orbit in the same direction that the Sun spins. Most also spin in that direction, and most also have large moons that orbit in that direction. ...
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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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