Solar nebula theory
... The Sun’s outer core will expand and the Sun will become a Red Giant. Theory #1: The Earth will get engulfed by the Sun and exist no more. Theory #2: When the Sun first begins to shrink, gravitational attraction between the Earth and Sun will become less. Some scientists think the Earth may move awa ...
... The Sun’s outer core will expand and the Sun will become a Red Giant. Theory #1: The Earth will get engulfed by the Sun and exist no more. Theory #2: When the Sun first begins to shrink, gravitational attraction between the Earth and Sun will become less. Some scientists think the Earth may move awa ...
CRCT Review 2 Earth Science
... D. Our reserves of gas and oil will last for several hundred years so there is no need to change to solar energy. ...
... D. Our reserves of gas and oil will last for several hundred years so there is no need to change to solar energy. ...
Space Notes - Holy Cross Collegiate
... _____________________________ are actually invisible to telescopes. Their existence is only known by an indirect method – when celestial material comes close to a black hole it becomes ________________________________________. Birth of Stars Stars form in regions of space where there are huge ac ...
... _____________________________ are actually invisible to telescopes. Their existence is only known by an indirect method – when celestial material comes close to a black hole it becomes ________________________________________. Birth of Stars Stars form in regions of space where there are huge ac ...
1) A magnetosphere is: a. The layer of a planet that contain its
... c. The coolest region of the Sun where the energy is absorbed by atoms d. The layer of the Sun that carry out the energy to the surface 3) The photosphere is: a. The coolest layer of the Sun b. The region where photons are produced c. The layer that we can only observe with special filters d ...
... c. The coolest region of the Sun where the energy is absorbed by atoms d. The layer of the Sun that carry out the energy to the surface 3) The photosphere is: a. The coolest layer of the Sun b. The region where photons are produced c. The layer that we can only observe with special filters d ...
The Sun
... Optical telescopes are used on earth to see a variety of objects in space like planets, stars, moons and so on. Sometimes they are so big they are put in observatories so that scientist can observe far off galaxies, stars, and nebulae. Space telescopes are used IN SPACE (Hubble) they orbit Earth and ...
... Optical telescopes are used on earth to see a variety of objects in space like planets, stars, moons and so on. Sometimes they are so big they are put in observatories so that scientist can observe far off galaxies, stars, and nebulae. Space telescopes are used IN SPACE (Hubble) they orbit Earth and ...
A mineral must be inorganic, which means that it contains
... 20. The agent of mechanical weathering in which rock is worn away by the grinding action of other rock particles is called ...
... 20. The agent of mechanical weathering in which rock is worn away by the grinding action of other rock particles is called ...
Monday, December 8 - Otterbein University
... Properties of Dark Energy • Should be able to explain acceleration of cosmic expansion acts like a negative pressure • Must not mess up structure formation or ...
... Properties of Dark Energy • Should be able to explain acceleration of cosmic expansion acts like a negative pressure • Must not mess up structure formation or ...
Stellar Formation 1) Solar Wind/Sunspots 2) Interstellar Medium 3) Protostars
... additional mass is being pulled in by gravity energy is being radiated away ...
... additional mass is being pulled in by gravity energy is being radiated away ...
History of Astronomy
... *** Einstein explained the true nature of gravity. • That it’s not a force but a pathway that a mass takes around more massive objects. This theory was proven correct by the deflection of starlight observed during a 1919 eclipse. c. ...
... *** Einstein explained the true nature of gravity. • That it’s not a force but a pathway that a mass takes around more massive objects. This theory was proven correct by the deflection of starlight observed during a 1919 eclipse. c. ...
Glossary
... Cepheid variable stars—a special class of pulsating star used for accurate distance measurements. (p. 399) chemical differentiation—the sinking of denser material toward the center of planets or other objects. (p. 52) chromosphere—the region between the photosphere and the corona. (p. 82) clean room ...
... Cepheid variable stars—a special class of pulsating star used for accurate distance measurements. (p. 399) chemical differentiation—the sinking of denser material toward the center of planets or other objects. (p. 52) chromosphere—the region between the photosphere and the corona. (p. 82) clean room ...
The Sky is Our Laboratory
... • Yes, it is very dark in space. Outside the solar system, the next closest star, Proxima Centauri, is about 4.3 ly away. On average in our own Galaxy each star is about 10 ly away from every other star in every direction. • more than headlights, I would advice installing a radar in the spaceship (e ...
... • Yes, it is very dark in space. Outside the solar system, the next closest star, Proxima Centauri, is about 4.3 ly away. On average in our own Galaxy each star is about 10 ly away from every other star in every direction. • more than headlights, I would advice installing a radar in the spaceship (e ...
Astronomy Study Guide CRCT Prep 1
... Scientific theories change when scientists discover new information. Prior to the 1500's it was believed that the earth was the center of the planets (geocentric model). Copernicus first suggested the heliocentric system, where the sun is at the center of the planets. With the use of telescopes, ...
... Scientific theories change when scientists discover new information. Prior to the 1500's it was believed that the earth was the center of the planets (geocentric model). Copernicus first suggested the heliocentric system, where the sun is at the center of the planets. With the use of telescopes, ...
Evidence of the Big Bang and Structure of the Universe
... spiral The Milky Way galaxy is a spiral galaxy, which has over 200 billion stars ...
... spiral The Milky Way galaxy is a spiral galaxy, which has over 200 billion stars ...
Solar Systems
... car navigational systems) – these satellites are in “geostationary” orbits. This means that the satellite always stays above the same point on the Earth. ...
... car navigational systems) – these satellites are in “geostationary” orbits. This means that the satellite always stays above the same point on the Earth. ...
Chapter 25 Teacher Notes
... •Johannes Kepler discovered that orbits had an elliptical pattern instead of circular. •Newton explained the reason that the planets stay in orbit is because of his first law and the reason that they don’t go out into space is because of sun’s gravity. •Animation of the Geocentric Model Components o ...
... •Johannes Kepler discovered that orbits had an elliptical pattern instead of circular. •Newton explained the reason that the planets stay in orbit is because of his first law and the reason that they don’t go out into space is because of sun’s gravity. •Animation of the Geocentric Model Components o ...
Astronomy Test Objective 1: Origins of the Universe Multiple Choice
... Black holes in the centers of giant galaxies—some more than one billion solar masses—had enough infalling gas to once blaze as quasars. The final mass of a black hole is not primordial, but instead is determined during the galaxy formation process. This shows that there is a close relationship betwe ...
... Black holes in the centers of giant galaxies—some more than one billion solar masses—had enough infalling gas to once blaze as quasars. The final mass of a black hole is not primordial, but instead is determined during the galaxy formation process. This shows that there is a close relationship betwe ...
Document
... Calculating one persons impact on the earth Worldwide, the biologically productive space available per person is 2.2 hectares or 5.4 acres. - part of the land surface and part of the ocean - most deserts, polar regions, and cities excluded ...
... Calculating one persons impact on the earth Worldwide, the biologically productive space available per person is 2.2 hectares or 5.4 acres. - part of the land surface and part of the ocean - most deserts, polar regions, and cities excluded ...
A Brief History of History
... under gravity formed the first galaxies and that the stars inside these clouds were formed later by the same process on a smaller scale. Stars come next A star is a ball of super-hot gas balanced between the twin tendencies to collapse under its own gravity, and the outward pressure of radiation ene ...
... under gravity formed the first galaxies and that the stars inside these clouds were formed later by the same process on a smaller scale. Stars come next A star is a ball of super-hot gas balanced between the twin tendencies to collapse under its own gravity, and the outward pressure of radiation ene ...
Chapter 8, Lesson 5, pdf
... • Clumps of particles grew until they became the young Earth or proto-Earth. • The protoplanet’s larger mass and gravity attracted smaller bodies to it. • Collisions increased. ...
... • Clumps of particles grew until they became the young Earth or proto-Earth. • The protoplanet’s larger mass and gravity attracted smaller bodies to it. • Collisions increased. ...
The Hubble Deep Field (HDF)
... a series of observations by the Hubble Space Telescope. They pointed Hubble at a fairly empty region of space, one where very few stars are seen. The image was assembled from 342 separate exposures taken with the Space Telescope's Wide Field and Planetary Camera 2 over ten consecutive days between D ...
... a series of observations by the Hubble Space Telescope. They pointed Hubble at a fairly empty region of space, one where very few stars are seen. The image was assembled from 342 separate exposures taken with the Space Telescope's Wide Field and Planetary Camera 2 over ten consecutive days between D ...
The Hubble Deep Field (HDF)
... a series of observations by the Hubble Space Telescope. They pointed Hubble at a fairly empty region of space, one where very few stars are seen. The image was assembled from 342 separate exposures taken with the Space Telescope's Wide Field and Planetary Camera 2 over ten consecutive days between D ...
... a series of observations by the Hubble Space Telescope. They pointed Hubble at a fairly empty region of space, one where very few stars are seen. The image was assembled from 342 separate exposures taken with the Space Telescope's Wide Field and Planetary Camera 2 over ten consecutive days between D ...
The Sun - Moodle
... Flows outward to the rest of the solar system Section 2 Solar Activity Page 761 Sunspots are relatively cool areas on the surface created by strong magnetic fields The sun spins on its axis but different ___________ spin at different ___________ The Sun has Storms: Sunspot Cycles Scientists have o ...
... Flows outward to the rest of the solar system Section 2 Solar Activity Page 761 Sunspots are relatively cool areas on the surface created by strong magnetic fields The sun spins on its axis but different ___________ spin at different ___________ The Sun has Storms: Sunspot Cycles Scientists have o ...
Observing the Solar System
... an object that orbits the sun and is large enough to have become round due to the force of its own gravity. In addition, a planet has to dominate the neighborhood around its orbit. • Pluto has been demoted because it does not dominate its neighborhood. Charon, its large "moon," is only about half th ...
... an object that orbits the sun and is large enough to have become round due to the force of its own gravity. In addition, a planet has to dominate the neighborhood around its orbit. • Pluto has been demoted because it does not dominate its neighborhood. Charon, its large "moon," is only about half th ...
Chapter1 Here and Now
... You are a planet walker, and this chapter will give you a preview of what that means. The planet you live on whirls around a star drifting through a universe filled with other stars and galaxies, results of billions of years of events and evolution. You owe it to yourself to know where you are in th ...
... You are a planet walker, and this chapter will give you a preview of what that means. The planet you live on whirls around a star drifting through a universe filled with other stars and galaxies, results of billions of years of events and evolution. You owe it to yourself to know where you are in th ...
Chapter 1
... You are a planet walker, and this chapter will give you a preview of what that means. The planet you live on whirls around a star drifting through a universe filled with other stars and galaxies, results of billions of years of events and evolution. You owe it to yourself to know where you are in th ...
... You are a planet walker, and this chapter will give you a preview of what that means. The planet you live on whirls around a star drifting through a universe filled with other stars and galaxies, results of billions of years of events and evolution. You owe it to yourself to know where you are in th ...
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.