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Multiple choice test questions 2, Winter Semester
Multiple choice test questions 2, Winter Semester

... B) They froze out of the soup of particles at the end of the era. C) They evaporated. D) They combined in groups to make electrons and neutrinos. 24) Why do we expect the cosmic background radiation to be almost, but not quite, the same in all directions? A) The overall structure of the universe is ...
Studying Planets in the Solar System
Studying Planets in the Solar System

... 7. After their research is complete, have the groups create a presentation to share their planetary information with the class. Presentations may be in the form of a written report with illustrations, a three-dimensional model, or a bulletin board display. ...
Winds
Winds

... matter and energy in the Universe was concentrated into single hot dense point called a singularity O Tremendous amounts of heat and pressure made this point so unstable that it exploded O According to the Big Bang Theory , the Universe began to expand after an enormous explosion of concentrated mat ...
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January 28

... 0.1 to 100 solar masses • 1 solar mass is the mass of the Sun ...
70 Thousand Million, Million, Million Stars in Space
70 Thousand Million, Million, Million Stars in Space

... varies depending on the orbit of both planets. Venus can be as close as 23,612,105 miles (38 million km) or as far away as 162,177,881 miles (261 million km). At its nearest point, Venus can be seen in the night sky. It reflects sunlight, making it look like a very bright star. ...
Unit 1
Unit 1

... 3.P.2.1 Recognize that air is a substance that surrounds us, takes up space and has mass. 3.P.2.2 Compare solids, liquids, and gases based on their basic properties. 3.P.2.3 Summarize changes that occur to the observable properties of materials when different degrees of heat are applied to them, suc ...
Macro\micro
Macro\micro

... other galáxies too... ...
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wdm_shanghai_Mayinzhe

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astro 101 - JustAnswer
astro 101 - JustAnswer

... 6. Due to retrograde motion some planets will rise in the west and set in the east. True or False 7. Which of the following is correctly ordered from largest to smallest in size? A. Moon, neutron star, white dwarf, galaxy B. galaxy, white dwarf, Moon, neutron star, C. galaxy, planet, neutron star, w ...
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Astronomy Project

... Astronomy is the study of celestial objects (such as stars, planets, comets, nebulae, star clusters and galaxies) and phenomena that originate outside the atmosphere of the Earth. ...
Unit 3 - Section 9.7 2011 Universe Origin
Unit 3 - Section 9.7 2011 Universe Origin

... shifting is known as a Doppler shift. By measuring the shift in wavelength, the speed of movement away (red) or towards (blue) Earth can be calculated. When a galaxy is rotating, the starlight from stars on the side of the galaxy that is moving towards are blue-shifted (…think opposite of Red Shift) ...
the young astronomers newsletter
the young astronomers newsletter

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Word - Lyon College

... "There is a danger groups may become too cohesive," Mr. Krins says. "When this occurs there may be intense pressure for individual crew members to behave in accordance with 'group norms'. For example, if there is a group norm to not report safety breaches, this could put the entire crew in danger." ...
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NEW GCSE REVISION Beginning of the Universe - crypt

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Physics 130 Name
Physics 130 Name

... 42._____The density of stars in the galactic disk is nearly the same in the spiral arms as between them. 43._____The Sun appears red at sunset because the blue light has been scattered away by the Earth’s atmosphere. 44._____Young stars in our Galaxy tend to be found in the galactic halo. 45._____Gl ...
Welcome to Science!
Welcome to Science!

... I remember a little over half of the information. I missed 4-5 questions. I do need to review some of what I missed. I remember very little of this. I got a few questions right but I mostly guessed. I really need to go back and study. I don’t remember any of this information. I missed almost all of ...
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... interesting feature obtained so far. It has a direct bearing on the current search for extra-solar planetary systems, one of the most challenging astronomical activities. While spectroscopic, astrometric and photometric studies may only provide indirect evidence for planets around other stars, coron ...
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Stars and Galaxies

... It may take several years for a spacecraft to reach other planets in our solar system. It may take several centuries to reach other stars in our galaxy. ...
Macro\micro - shoukath.net
Macro\micro - shoukath.net

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I Scale D Relationship between the portion of Earth being studied

... Geographers study the world at many scales, as smaller scale maps can portray the “big picture” but large scale maps can show more detail. ...
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Our Universe

... developed by the German-born physicist Albert Einstein. The theory was published in 1916. •The surface of a black hole is known as the event horizon. This is not a normal surface that you could see or touch. At the event horizon, the pull of gravity becomes infinitely strong. Thus, an object can exi ...
Conditions for Life
Conditions for Life

... as it orbits around it and its axial tilt during rotation. Look at a globe of Earth. Notice the 23½° tilt of the Earth on its axis. If the Earth did not keep this angle during rotation, the seasons would be very different as the Earth revolved around the Sun. Locate the area in which you live in on ...
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Quiz 1: Answers Physics 55: Introduction to

... 5. T / F If, through a telescope, you see two glowing objects such that one object is further away than the other, then the closer object is younger in age than the further object. Answer: F. It is true that the closer an object, the more recently you see the object since it takes less time for ligh ...
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... However, if current theoretical ideas are correct that most forms of matter are ultimately unstable toward decay into lighter particles, with even black holes not immune from the disease, then the end game of the evolution of the universe will see a redispersal of the gravitationally bound “final st ...
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Outer space



Outer space, or just space, is the void that exists between celestial bodies, including the Earth. It is not completely empty, but consists of a hard vacuum containing a low density of particles, predominantly a plasma of hydrogen and helium as well as electromagnetic radiation, magnetic fields, neutrinos, dust and cosmic rays. The baseline temperature, as set by the background radiation from the Big Bang, is 2.7 kelvin (K). Plasma with a number density of less than one hydrogen atom per cubic metre and a temperature of millions of kelvin in the space between galaxies accounts for most of the baryonic (ordinary) matter in outer space; local concentrations have condensed into stars and galaxies. In most galaxies, observations provide evidence that 90% of the mass is in an unknown form, called dark matter, which interacts with other matter through gravitational but not electromagnetic forces. Data indicates that the majority of the mass-energy in the observable Universe is a poorly understood vacuum energy of space which astronomers label dark energy. Intergalactic space takes up most of the volume of the Universe, but even galaxies and star systems consist almost entirely of empty space.There is no firm boundary where space begins. However the Kármán line, at an altitude of 100 km (62 mi) above sea level, is conventionally used as the start of outer space in space treaties and for aerospace records keeping. The framework for international space law was established by the Outer Space Treaty, which was passed by the United Nations in 1967. This treaty precludes any claims of national sovereignty and permits all states to freely explore outer space. Despite the drafting of UN resolutions for the peaceful uses of outer space, anti-satellite weapons have been tested in Earth orbit.Humans began the physical exploration of space during the 20th century with the advent of high-altitude balloon flights, followed by manned rocket launches. Earth orbit was first achieved by Yuri Gagarin of the Soviet Union in 1961 and unmanned spacecraft have since reached all of the known planets in the Solar System. Due to the high cost of getting into space, manned spaceflight has been limited to low Earth orbit and the Moon.Outer space represents a challenging environment for human exploration because of the dual hazards of vacuum and radiation. Microgravity also has a negative effect on human physiology that causes both muscle atrophy and bone loss. In addition to these health and environmental issues, the economic cost of putting objects, including humans, into space is high.
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