April 2013
... GCRs would need to have been travelling for about 10 million years to produce enough interstellar collisions to yield the observed number of light nuclei. The timescale for this travel is based in part on the observation of such radioactive fragments as 4Be10. This radionuclide has a half-life of 1. ...
... GCRs would need to have been travelling for about 10 million years to produce enough interstellar collisions to yield the observed number of light nuclei. The timescale for this travel is based in part on the observation of such radioactive fragments as 4Be10. This radionuclide has a half-life of 1. ...
The Universe and Space Travel
... necessarily be home to any furry creatures. But it would have the potential for some type of life to abound, if even microbes. ...
... necessarily be home to any furry creatures. But it would have the potential for some type of life to abound, if even microbes. ...
Lecture Two (Powerpoint format) - FLASH Center for Computational
... The equinoxes occur when the sun intersects the celestial equator -roughly March 21 and September 21. On this day, the sun appears directly above the equator, and every point on earth has equal day and ...
... The equinoxes occur when the sun intersects the celestial equator -roughly March 21 and September 21. On this day, the sun appears directly above the equator, and every point on earth has equal day and ...
Winter constellations
... the Giant), with the triplets of stars of his belt and sword, and to the upper left the bright red star Betelgeuse. The name means ‘arm of the giant’ in Arabic and it is a red supergiant star about twenty times the mass of the sun. The bottom ‘star’ of Orion’s sword appears slightly fuzzy to the nak ...
... the Giant), with the triplets of stars of his belt and sword, and to the upper left the bright red star Betelgeuse. The name means ‘arm of the giant’ in Arabic and it is a red supergiant star about twenty times the mass of the sun. The bottom ‘star’ of Orion’s sword appears slightly fuzzy to the nak ...
Earth-Moon-Sun System (seasons, moon phases
... noticeable in larger bodies of water, particularly oceans, seas, and large lakes (like the Great Lakes). The Moon’s gravity contributes the most to the creation of tides, and because of this we can predict high and low tides using the lunar cycle. During the course of a month we see many different f ...
... noticeable in larger bodies of water, particularly oceans, seas, and large lakes (like the Great Lakes). The Moon’s gravity contributes the most to the creation of tides, and because of this we can predict high and low tides using the lunar cycle. During the course of a month we see many different f ...
university of alaska southeast teacher work sample submitted to
... Ask for a student volunteer to be the sun. Pick a hands on learner to take the globe and circle around the sun, while spinning the globe. Point out when and how we receive sunlight. Cover the concepts: Earth: diameter, distance from sun, importance of water, atmosphere, Why does Earth have seasons? ...
... Ask for a student volunteer to be the sun. Pick a hands on learner to take the globe and circle around the sun, while spinning the globe. Point out when and how we receive sunlight. Cover the concepts: Earth: diameter, distance from sun, importance of water, atmosphere, Why does Earth have seasons? ...
PDF only
... for hundreds of billions of years, but they shine so dimly that their habitable zones are very close-in, potentially subjecting planets there to powerful stellar flares and other dangerous effects. Being longer-lived than our sun yet not treacherously dim, K dwarfs appear to reside in the sweet spot ...
... for hundreds of billions of years, but they shine so dimly that their habitable zones are very close-in, potentially subjecting planets there to powerful stellar flares and other dangerous effects. Being longer-lived than our sun yet not treacherously dim, K dwarfs appear to reside in the sweet spot ...
photosphere
... In this chapter, you can use the interaction of light and matter to reveal the secrets of the sun. Because the sun is a typical star, what you are about to learn are the secrets of the stars. ...
... In this chapter, you can use the interaction of light and matter to reveal the secrets of the sun. Because the sun is a typical star, what you are about to learn are the secrets of the stars. ...
Word doc - UC-HiPACC - University of California, Santa Cruz
... Because cool clouds in such a hostile environment evaporate, G2 either formed shortly before it was detected or is part of a larger extended structure. Like a comet heading toward the Sun, G2 is plummeting toward Sgr A*. At closest approach (pericenter) in June, G2’s center of mass will scream by on ...
... Because cool clouds in such a hostile environment evaporate, G2 either formed shortly before it was detected or is part of a larger extended structure. Like a comet heading toward the Sun, G2 is plummeting toward Sgr A*. At closest approach (pericenter) in June, G2’s center of mass will scream by on ...
The Sun
... A Regions on the Sun, hotter than the photosphere. B Regions on the Sun, composed of dark substances. C Regions on the Sun, colder than the photosphere. D Holes in the surface of the Sun where we see deep into the Sun. E Clouds floating over the photosphere. ...
... A Regions on the Sun, hotter than the photosphere. B Regions on the Sun, composed of dark substances. C Regions on the Sun, colder than the photosphere. D Holes in the surface of the Sun where we see deep into the Sun. E Clouds floating over the photosphere. ...
The Sun, Moon, & Earth
... http://www.forcedgreen.com/wp-content/uploads/2009/11/sun.jpg http://media-cdn.tripadvisor.com/media/photos/00/1d/f3/53/sunrise-in-gulfshores.jpg http://www.kidzoneweather.com/images/seasons-1.png http://rlccbpl.files.wordpress.com/2008/02/feb29.jpg http://spiritualoasis.files.wordpress.com/2006/10/ ...
... http://www.forcedgreen.com/wp-content/uploads/2009/11/sun.jpg http://media-cdn.tripadvisor.com/media/photos/00/1d/f3/53/sunrise-in-gulfshores.jpg http://www.kidzoneweather.com/images/seasons-1.png http://rlccbpl.files.wordpress.com/2008/02/feb29.jpg http://spiritualoasis.files.wordpress.com/2006/10/ ...
A sound nebula: the origin of the Solar System in the field of a
... It consists of trillions of small objects composed of dust and water, ammonia and methane ice and it is believed that these objects were scattered outwards by the gas giants at the planetary formation stage and then acquired distant circular orbits (out to about one light year) as a result of gravi ...
... It consists of trillions of small objects composed of dust and water, ammonia and methane ice and it is believed that these objects were scattered outwards by the gas giants at the planetary formation stage and then acquired distant circular orbits (out to about one light year) as a result of gravi ...
Giant planet formation
... Gravitational instabilities in the protoplanetary disk form clumps of material, the protoplanets, with the solid parts settling in their cores. “Top-down planet formation” Main advantages of the disk-instability hypothesis: • It explains the similarities between stars, brown dwarfs, and gas giants • ...
... Gravitational instabilities in the protoplanetary disk form clumps of material, the protoplanets, with the solid parts settling in their cores. “Top-down planet formation” Main advantages of the disk-instability hypothesis: • It explains the similarities between stars, brown dwarfs, and gas giants • ...
3. COMMENTS ON KEPLER`S NEW ASTRONOMY
... Let us imagine the way in which the relationship between the {orbits of intelligence in the heavens} relates to the {orbits of our reason}, and discover how, in that process, Pythagoras organized a relationship between his perceptions of the stars with a physical principle of their motions. Conceivi ...
... Let us imagine the way in which the relationship between the {orbits of intelligence in the heavens} relates to the {orbits of our reason}, and discover how, in that process, Pythagoras organized a relationship between his perceptions of the stars with a physical principle of their motions. Conceivi ...
Disk-planet interaction
... William of Vorilong (ca. 1450) thought that it is "not fitting" for Christ to go to another world to die again. And there is no mention of other worlds in Scriptures. Johannes Kepler (1571-1630) did not believe that stars are distant suns or that they may have planets. And so on, until the end of 20 ...
... William of Vorilong (ca. 1450) thought that it is "not fitting" for Christ to go to another world to die again. And there is no mention of other worlds in Scriptures. Johannes Kepler (1571-1630) did not believe that stars are distant suns or that they may have planets. And so on, until the end of 20 ...
planetary nebulae
... Do you have a complete diagram showing the life cycles of stars? • It should show what stars form from • What triggers star formation • The different fates of different mass stars • How some star material is recycled ...
... Do you have a complete diagram showing the life cycles of stars? • It should show what stars form from • What triggers star formation • The different fates of different mass stars • How some star material is recycled ...
Planetary exploration
... new IAU definition, Ceres is regarded as the only dwarf planet in the asteroid belt and the smallest of the lot (Eris, Pluto, Haumea and ...
... new IAU definition, Ceres is regarded as the only dwarf planet in the asteroid belt and the smallest of the lot (Eris, Pluto, Haumea and ...
Moons of the Solar System Curriculum
... (energy) through nuclear fusion and rotates on its axis, but it remains in an essentially constant position. A planet rotates on its axis and orbits a star. A moon rotates on its axis and orbits a planet while the planet orbits its star. Note: The above is a very simple and broad definition for plan ...
... (energy) through nuclear fusion and rotates on its axis, but it remains in an essentially constant position. A planet rotates on its axis and orbits a star. A moon rotates on its axis and orbits a planet while the planet orbits its star. Note: The above is a very simple and broad definition for plan ...
Chapter 13 Exploring the final frontier
... of interaction infinite. How are these same concepts viewed in the theory of relativity? 12. In one paragraph, describe what is meant by the ‘relativity of simultaneity’. 13. In terms of the energy required, accelerating a spacecraft to light speed is an impossibility. Explain why this is so. ...
... of interaction infinite. How are these same concepts viewed in the theory of relativity? 12. In one paragraph, describe what is meant by the ‘relativity of simultaneity’. 13. In terms of the energy required, accelerating a spacecraft to light speed is an impossibility. Explain why this is so. ...
1 - Astronomy
... 1. We examine these theories of the observed motions of stars and planets to answer the question of where the Earth fits into the scheme of things, to see how well they match the criteria for a good scientific theory. 2. To understand how astronomy—and science in general—works, we must look at how i ...
... 1. We examine these theories of the observed motions of stars and planets to answer the question of where the Earth fits into the scheme of things, to see how well they match the criteria for a good scientific theory. 2. To understand how astronomy—and science in general—works, we must look at how i ...
exo planets
... And here’s an interesting fact: We have not yet discovered one other planetary system that is like our own. At one time, we thought most planetary systems might be similar to ours – rocky planets near the sun, a few gas giants father away and then a realm of icy worlds in the far reaches. But it see ...
... And here’s an interesting fact: We have not yet discovered one other planetary system that is like our own. At one time, we thought most planetary systems might be similar to ours – rocky planets near the sun, a few gas giants father away and then a realm of icy worlds in the far reaches. But it see ...
Document
... • The Mars Exploration Rovers Spirit and Opportunity have been exploring Mars since they landed there in January 2004. • They are searching for evidence indicating that water once flowed on the Martian surface and for environments in which life may have existed. • The surface of Mars is made up most ...
... • The Mars Exploration Rovers Spirit and Opportunity have been exploring Mars since they landed there in January 2004. • They are searching for evidence indicating that water once flowed on the Martian surface and for environments in which life may have existed. • The surface of Mars is made up most ...
Formation and evolution of the Solar System
The formation of the Solar System began 4.6 billion years ago with the gravitational collapse of a small part of a giant molecular cloud. Most of the collapsing mass collected in the center, forming the Sun, while the rest flattened into a protoplanetary disk out of which the planets, moons, asteroids, and other small Solar System bodies formed.This widely accepted model, known as the nebular hypothesis, was first developed in the 18th century by Emanuel Swedenborg, Immanuel Kant, and Pierre-Simon Laplace. Its subsequent development has interwoven a variety of scientific disciplines including astronomy, physics, geology, and planetary science. Since the dawn of the space age in the 1950s and the discovery of extrasolar planets in the 1990s, the model has been both challenged and refined to account for new observations.The Solar System has evolved considerably since its initial formation. Many moons have formed from circling discs of gas and dust around their parent planets, while other moons are thought to have formed independently and later been captured by their planets. Still others, such as the Moon, may be the result of giant collisions. Collisions between bodies have occurred continually up to the present day and have been central to the evolution of the Solar System. The positions of the planets often shifted due to gravitational interactions. This planetary migration is now thought to have been responsible for much of the Solar System's early evolution.In roughly 5 billion years, the Sun will cool and expand outward many times its current diameter (becoming a red giant), before casting off its outer layers as a planetary nebula and leaving behind a stellar remnant known as a white dwarf. In the far distant future, the gravity of passing stars will gradually reduce the Sun's retinue of planets. Some planets will be destroyed, others ejected into interstellar space. Ultimately, over the course of tens of billions of years, it is likely that the Sun will be left with none of the original bodies in orbit around it.