Name ______KEY Date Core ______ Study Guide Galaxies and the
... What is the role of gravity within a galaxy? Gravity is the pulling force that holds the gas, dust, rocks together – toward the center. The force is proportional to the mass. The larger mass will have a larger pull/gravity. ...
... What is the role of gravity within a galaxy? Gravity is the pulling force that holds the gas, dust, rocks together – toward the center. The force is proportional to the mass. The larger mass will have a larger pull/gravity. ...
Space studies
... is named after the Roman goddess of love and beauty. After the Moon, it is the brightest natural object in the night sky, reaching an apparent magnitude of −4.6, bright enough to cast shadows.[12] Because Venus is an inferior planet from Earth, it never appears to venture far from the Sun: its elong ...
... is named after the Roman goddess of love and beauty. After the Moon, it is the brightest natural object in the night sky, reaching an apparent magnitude of −4.6, bright enough to cast shadows.[12] Because Venus is an inferior planet from Earth, it never appears to venture far from the Sun: its elong ...
Cosmology and the Birth of Earth
... • Because of this, we define the unit Light Year – The speed of light (c) is 186,000 miles/s (300,000 km/s). • The Moon is 1.3 light seconds (~237,000 miles) away. • The Sun is 8.3 light minutes (~93 million miles) away. ...
... • Because of this, we define the unit Light Year – The speed of light (c) is 186,000 miles/s (300,000 km/s). • The Moon is 1.3 light seconds (~237,000 miles) away. • The Sun is 8.3 light minutes (~93 million miles) away. ...
ADE_EB_The Universe
... We can only fly on our solar system with a spaceship. Consists out of 1 star and 9 planets. The galaxy also has smaller bodies etc: satellites, asteroids, comets and meteoroids. The moon is a natural satellite, which is made out of rock and orbits around the Earth. The moon reflects light f ...
... We can only fly on our solar system with a spaceship. Consists out of 1 star and 9 planets. The galaxy also has smaller bodies etc: satellites, asteroids, comets and meteoroids. The moon is a natural satellite, which is made out of rock and orbits around the Earth. The moon reflects light f ...
The Components and Origin of the Universe
... energy expanded from a hot dense mass with an incredibly small volume 2. at first, the universe was hot (10 32 C) and energy went rushing out in all directions energy became cooled enough to become matter 3. matter then cooled enough to form protons, electrons and neutrons (subatomic particles) 4. ...
... energy expanded from a hot dense mass with an incredibly small volume 2. at first, the universe was hot (10 32 C) and energy went rushing out in all directions energy became cooled enough to become matter 3. matter then cooled enough to form protons, electrons and neutrons (subatomic particles) 4. ...
The Solar System Information Pack
... sun (and the new planet that has been found!). The relative sizes of the planets and their distance from the sun. The sun is a star at the centre of our solar system. The sun, earth and moon are approximately spherical bodies. That some of the planets have moons and the number of moons for e ...
... sun (and the new planet that has been found!). The relative sizes of the planets and their distance from the sun. The sun is a star at the centre of our solar system. The sun, earth and moon are approximately spherical bodies. That some of the planets have moons and the number of moons for e ...
Integrative Studies 410 Our Place in the Universe
... What’s in the Universe? Stars nebulae molecular clouds star clusters ...
... What’s in the Universe? Stars nebulae molecular clouds star clusters ...
space
... Earth is the third of the planets, about 8 light minutes away from the Sun. A light second is the distance travelled by light in one second, that is 3,00,000 km. A light minute is 60 times that number. Our next destination is the Moon. It is 1.5 light seconds from the Earth. Current evidence suggest ...
... Earth is the third of the planets, about 8 light minutes away from the Sun. A light second is the distance travelled by light in one second, that is 3,00,000 km. A light minute is 60 times that number. Our next destination is the Moon. It is 1.5 light seconds from the Earth. Current evidence suggest ...
Outer Space
... Even though spaceships have traveled to the Moon, people cannot visit the Moon without special suits. The Moon has no air or water. Plants and animals can’t live there either. Astronauts first landed on the Moon in 1969. After that, there were six more trips to the Moon. They brought back Moon rocks ...
... Even though spaceships have traveled to the Moon, people cannot visit the Moon without special suits. The Moon has no air or water. Plants and animals can’t live there either. Astronauts first landed on the Moon in 1969. After that, there were six more trips to the Moon. They brought back Moon rocks ...
The Solar System. The Inner Planets.
... Venus is the third brightest object in the sky after the Sun and the Moon. Venus has very similar parameters to those of the Earth. However, it spins backwards (clockwise if looking from its north pole). Its atmosphere has 96% CO2, surface temperature 400740 K, surface pressure is 90 times the Eart ...
... Venus is the third brightest object in the sky after the Sun and the Moon. Venus has very similar parameters to those of the Earth. However, it spins backwards (clockwise if looking from its north pole). Its atmosphere has 96% CO2, surface temperature 400740 K, surface pressure is 90 times the Eart ...
Where Are They?
... • We are the first space-faring civilization • Space travel is not possible for biological beings, perhaps due to high levels of radiation in space • Space travel is possible; advanced civilizations stay home. • We are in quarantine (the sentinal hypothesis) • We are an exhibit in the cosmic zo ...
... • We are the first space-faring civilization • Space travel is not possible for biological beings, perhaps due to high levels of radiation in space • Space travel is possible; advanced civilizations stay home. • We are in quarantine (the sentinal hypothesis) • We are an exhibit in the cosmic zo ...
Meteors - Little Worksheets
... There are lots of objects that we see in the sky. During the day we see the sun. After the sun sets in the evening we see mostly the stars. Not all the lights in the sky that we see are really stars. Of course, we see the moon. Some of the other lights in the sky are planets. Planets revolve around ...
... There are lots of objects that we see in the sky. During the day we see the sun. After the sun sets in the evening we see mostly the stars. Not all the lights in the sky that we see are really stars. Of course, we see the moon. Some of the other lights in the sky are planets. Planets revolve around ...
THE BIG BANG THEORY
... • Astronomers observe galaxies are all red shifted from Earth – What does this say about the galaxies in relation to Earth? • Therefore, all galaxies are moving away from earth • Therefore, the universe is expanding ...
... • Astronomers observe galaxies are all red shifted from Earth – What does this say about the galaxies in relation to Earth? • Therefore, all galaxies are moving away from earth • Therefore, the universe is expanding ...
PDF Version - OMICS International
... everyone has a chance to see it in their lifetime (Orbital Period of 77 years). Light Year (ly): is the distance that light travels in one year. One light year equals 9.46 x 1015 metres. c = distance/time 300000000 = distance/365x24x60x60 Stellar cluster: A number of stars that are held together in ...
... everyone has a chance to see it in their lifetime (Orbital Period of 77 years). Light Year (ly): is the distance that light travels in one year. One light year equals 9.46 x 1015 metres. c = distance/time 300000000 = distance/365x24x60x60 Stellar cluster: A number of stars that are held together in ...
SNC 1D - othsmath
... A celestial body made of hot gases, mainly hydrogen and helium. The helium is more dense than the hydrogen and so falls inward to the deepest part of the star’s core while the hydrogen is found in the next layers outward. Stars rotate. They rotate faster in the middle than they do at the poles A vas ...
... A celestial body made of hot gases, mainly hydrogen and helium. The helium is more dense than the hydrogen and so falls inward to the deepest part of the star’s core while the hydrogen is found in the next layers outward. Stars rotate. They rotate faster in the middle than they do at the poles A vas ...
Section 2 Astronomy 100 Fall 2003 Hour Exam 1
... 28. According to modern theories, the most significant difference between the formation of the terrestrial and the large, outer planets is that A) both formed by accretion of rocky and icy planetesimals, but the terrestrial planets were close enough to the Sun that almost all of the ices escaped bac ...
... 28. According to modern theories, the most significant difference between the formation of the terrestrial and the large, outer planets is that A) both formed by accretion of rocky and icy planetesimals, but the terrestrial planets were close enough to the Sun that almost all of the ices escaped bac ...
previous mid-term () - Department of Physics and Astronomy
... 47. For a star moving away from the Solar System, the absorption and emission lines of the electromagnetic radiation spectrum will be Doppler shifted, that is a. reversed so that red wavelengths will become blue and blue wavelengths will become red ones. b. blueshifted, that is, shifted toward short ...
... 47. For a star moving away from the Solar System, the absorption and emission lines of the electromagnetic radiation spectrum will be Doppler shifted, that is a. reversed so that red wavelengths will become blue and blue wavelengths will become red ones. b. blueshifted, that is, shifted toward short ...
The Modern Origins Story: From the Big Bang to Habitable Planets
... Simulation of Collapse of Gas Cloud to Form Stars (Matthew Bate) ...
... Simulation of Collapse of Gas Cloud to Form Stars (Matthew Bate) ...
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.