Unit 1 Space Suggested Time: 21 Hours
... Kepler determined that planets follow an elliptical path (students do not need to know Kepler’s Laws of Planetary Motion). Teachers should focus the discussion on the contributions made by these scientists to the scientific body of knowledge rather than on their life history. Describing the contribu ...
... Kepler determined that planets follow an elliptical path (students do not need to know Kepler’s Laws of Planetary Motion). Teachers should focus the discussion on the contributions made by these scientists to the scientific body of knowledge rather than on their life history. Describing the contribu ...
The Universe
... For the typical galaxy, the gas, dust and dark matter are an order of magnitude more massive than the stars ...
... For the typical galaxy, the gas, dust and dark matter are an order of magnitude more massive than the stars ...
01-Syllabus
... be followed. You are responsible for knowing these, see the university website. Students are welcome to work together, exchange ideas, etc. But for the Observational Project you must do your own measurements and calculations. Exam procedures: Room assignments for the exams will be announced beforeha ...
... be followed. You are responsible for knowing these, see the university website. Students are welcome to work together, exchange ideas, etc. But for the Observational Project you must do your own measurements and calculations. Exam procedures: Room assignments for the exams will be announced beforeha ...
international year of astronomy the turbulent sun
... their gases. The temperature of the prominences is less than the chromosphere and the shape of prominences indicates that they are well insulated against the surrounding heat and coronal radiation. Reason for this insulation may be due to magnetic and electric field within the prominences. Prominenc ...
... their gases. The temperature of the prominences is less than the chromosphere and the shape of prominences indicates that they are well insulated against the surrounding heat and coronal radiation. Reason for this insulation may be due to magnetic and electric field within the prominences. Prominenc ...
www.astro.org.uk www.facebook.com/Stra ordAstro www.twi er.com
... about the belts, with the added bonus of watching from two separate spacecraN that can be4er show how events sweep across the area. Baker likes to compare the radia:on belts to the par:cle storage rings in a par:cle physics accelerator. In accelerators, magne:c fields are used to hold the par:cles or ...
... about the belts, with the added bonus of watching from two separate spacecraN that can be4er show how events sweep across the area. Baker likes to compare the radia:on belts to the par:cle storage rings in a par:cle physics accelerator. In accelerators, magne:c fields are used to hold the par:cles or ...
Ch 18
... forbidden but are so rare that under standard laboratory conditions they are never seen. In a nebula, however, the gas is so thin that an atom, once excited, has only a small probability of interacting before it decays spontaneously. ...
... forbidden but are so rare that under standard laboratory conditions they are never seen. In a nebula, however, the gas is so thin that an atom, once excited, has only a small probability of interacting before it decays spontaneously. ...
Beyond the Solar System By Patti Hutchison ANSWER THE
... year is the distance that light travels in one year. A light year is about 9.5 trillion kilometers or about 6 trillion miles. Our solar system is about 4.6 billion years old. Our sun is a young star. Scientists think the Milky Way galaxy may be about 14 billion years old. The smallest galaxies conta ...
... year is the distance that light travels in one year. A light year is about 9.5 trillion kilometers or about 6 trillion miles. Our solar system is about 4.6 billion years old. Our sun is a young star. Scientists think the Milky Way galaxy may be about 14 billion years old. The smallest galaxies conta ...
Dark Matter - Berkeley Center for Cosmological Physics
... visible matter, again, much more matter is needed. This is combined with restrictions from nucleosynthesis show that the majority of the Universe's matter must be nonbaryonic dark matter. Galaxy & larger structure formation could not have occurred in the time it did with only the gravity from visibl ...
... visible matter, again, much more matter is needed. This is combined with restrictions from nucleosynthesis show that the majority of the Universe's matter must be nonbaryonic dark matter. Galaxy & larger structure formation could not have occurred in the time it did with only the gravity from visibl ...
discover the wonders above
... Both spiral galaxies will eventually become one giant elliptical galaxy (nicknamed Milkdromeda). Individual star collisions are unlikely due to the vast distances between them. ...
... Both spiral galaxies will eventually become one giant elliptical galaxy (nicknamed Milkdromeda). Individual star collisions are unlikely due to the vast distances between them. ...
ORBITAL MOTION
... becomes opaque to the dust radiation even at 300microns. The energy released is trapped and the temperature rises. As the temperature ascends, the opacity also ascends. The core suddenly switches from isothermal to adiabatic. Stage 4. The high thermal pressure resists gravity and this ends the first ...
... becomes opaque to the dust radiation even at 300microns. The energy released is trapped and the temperature rises. As the temperature ascends, the opacity also ascends. The core suddenly switches from isothermal to adiabatic. Stage 4. The high thermal pressure resists gravity and this ends the first ...
Journey to the Stars Educator`s Guide
... the gas to form the first stars. Over the next few billion years, stars were born more rapidly than at any other period in the history of the universe. Stars now form at a rate one-tenth as high. • About 4.5 billion years ago, within the Milky Way Galaxy, our Sun was born from a dense cloud of gas an ...
... the gas to form the first stars. Over the next few billion years, stars were born more rapidly than at any other period in the history of the universe. Stars now form at a rate one-tenth as high. • About 4.5 billion years ago, within the Milky Way Galaxy, our Sun was born from a dense cloud of gas an ...
Observational Evidence for Dark Matter Simona Murgia, SLAC-KIPAC XXXIX SLAC Summer Institute
... (Much longer timescales for heavier elements to form, e.g. C, N, O) Constrains baryon density: ΩB~ few % ρ ...
... (Much longer timescales for heavier elements to form, e.g. C, N, O) Constrains baryon density: ΩB~ few % ρ ...
K-12 Science
... 2. Explain that Earth is one of several planets to orbit the sun, and that the moon orbits Earth. 3. Describe the characteristics of Earth and its orbit about the sun (e.g., three-fourths of Earth's surface is covered by a layer of water [some of it frozen], the entire planet surrounded by a thin bl ...
... 2. Explain that Earth is one of several planets to orbit the sun, and that the moon orbits Earth. 3. Describe the characteristics of Earth and its orbit about the sun (e.g., three-fourths of Earth's surface is covered by a layer of water [some of it frozen], the entire planet surrounded by a thin bl ...
PPT Slides - Center for Computational Sciences
... Star Formation in the Universe • Efficiency and speed of star formation in galaxies determined by the supersonic turbulent motions in the interstellar gas • Turbulence likely driven by combination of supernova explosions and galactic shear • Efficient star formation in young galaxies drives winds t ...
... Star Formation in the Universe • Efficiency and speed of star formation in galaxies determined by the supersonic turbulent motions in the interstellar gas • Turbulence likely driven by combination of supernova explosions and galactic shear • Efficient star formation in young galaxies drives winds t ...
Dark Matter in the Universe
... it. For every gram of glowing material we can detect, watch this encounter for a few decades to know if M31 will strike our galaxy or merely slide by. If they do collide, we will there may be tens of grams of dark matter out there. Currently lose: the Milky Way will merge into the more massive M31. ...
... it. For every gram of glowing material we can detect, watch this encounter for a few decades to know if M31 will strike our galaxy or merely slide by. If they do collide, we will there may be tens of grams of dark matter out there. Currently lose: the Milky Way will merge into the more massive M31. ...
Density
... dating, which is used to determine the ages of rocks The oldest rocks found anywhere in the solar system are meteorites, the bits of meteoroids that survive passing through the Earth’s atmosphere and land on our planet’s surface Radioactive age-dating of meteorites, reveals that they are all nea ...
... dating, which is used to determine the ages of rocks The oldest rocks found anywhere in the solar system are meteorites, the bits of meteoroids that survive passing through the Earth’s atmosphere and land on our planet’s surface Radioactive age-dating of meteorites, reveals that they are all nea ...
Ch 28-31
... a. P² = a³ (P = orbital period = unit of time in Earth yrs, a = length of the semi major axis) b. If you know the distance of a planet to the Sun, you would be able to figure out its… orbital ...
... a. P² = a³ (P = orbital period = unit of time in Earth yrs, a = length of the semi major axis) b. If you know the distance of a planet to the Sun, you would be able to figure out its… orbital ...
Unit 6: Astronomy
... Star gazing Using his powerful telescope, Galileo’s curiosity now turned skyward. He discovered craters on the moon, sunspots, Jupiter’s four largest moons, and the phases of Venus. His observations led him to conclude that Earth could not possibly be the center of the universe, as had been commonly ...
... Star gazing Using his powerful telescope, Galileo’s curiosity now turned skyward. He discovered craters on the moon, sunspots, Jupiter’s four largest moons, and the phases of Venus. His observations led him to conclude that Earth could not possibly be the center of the universe, as had been commonly ...
PSC100 Summary Chapters 1 to Chapter 9
... brightest as second magnitude, down to the dimmest stars that he could see on a clear dark night which were classified as sixth magnitude. This scale was later extended to even dimmer stars that can be seen only by using telescopes. The best telescopes in use today can detect and record light from s ...
... brightest as second magnitude, down to the dimmest stars that he could see on a clear dark night which were classified as sixth magnitude. This scale was later extended to even dimmer stars that can be seen only by using telescopes. The best telescopes in use today can detect and record light from s ...
creation of a cosmology: big bang theory _eng
... Finally the empirical evidence big bangers had predicted was observed in 1965 by Bell Labs Arno Penzias and Robert Wilson. Robert Dicke of Princeton University was the first to search for fossil remains of the big bang. Dicke suggested that the Big bang emanated from a previous universe and that a t ...
... Finally the empirical evidence big bangers had predicted was observed in 1965 by Bell Labs Arno Penzias and Robert Wilson. Robert Dicke of Princeton University was the first to search for fossil remains of the big bang. Dicke suggested that the Big bang emanated from a previous universe and that a t ...
Potential meteorite impact - Albert
... • A potentially hazardous object (PHO) is of a large size, enough to cause significant regional damage in the event of impact. ...
... • A potentially hazardous object (PHO) is of a large size, enough to cause significant regional damage in the event of impact. ...
Potential Meteorite Impact - Albert
... • A potentially hazardous object (PHO) is of a large size, enough to cause significant regional damage in the event of impact. ...
... • A potentially hazardous object (PHO) is of a large size, enough to cause significant regional damage in the event of impact. ...
Ch 3 PPT - Blountstown Middle School
... • When a star’s hydrogen supply is nearly gone, the star leaves the main sequence and begins the next stage of its life cycle. • All stars form in the same way, but stars die in different ways, depending on their ...
... • When a star’s hydrogen supply is nearly gone, the star leaves the main sequence and begins the next stage of its life cycle. • All stars form in the same way, but stars die in different ways, depending on their ...
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.