Multiple Choice, continued Stars, Galaxies, and the Universe
... Today, we know that Copernicus was right: the stars are very far from Earth. In fact, stars are so distant that a new unit of length—the light-year—was created to measure their distance. A light-year is a unit of length equal to the distance that light travels through space in 1 year. Because the sp ...
... Today, we know that Copernicus was right: the stars are very far from Earth. In fact, stars are so distant that a new unit of length—the light-year—was created to measure their distance. A light-year is a unit of length equal to the distance that light travels through space in 1 year. Because the sp ...
3.7 Isotope Effect - Institute for Astronomy | ETH
... the cool stars begin to fade out and cooler objects such as planets, comets and asteroids come into view. Planets absorb light from the Sun and heat up. They then reradiate this heat as infrared light, in first approximation as a black-body spectrum. This radiation has to be distinguished from the v ...
... the cool stars begin to fade out and cooler objects such as planets, comets and asteroids come into view. Planets absorb light from the Sun and heat up. They then reradiate this heat as infrared light, in first approximation as a black-body spectrum. This radiation has to be distinguished from the v ...
Exoplanet Working Group
... • Stellar micro-variability is not the main limitations • The method used to detrend the signal is almost as important as the detection algorithm itself • In some cases detrending can produce artefacts • Background eclipsing binaries are source of confusion • Characterization of the transits require ...
... • Stellar micro-variability is not the main limitations • The method used to detrend the signal is almost as important as the detection algorithm itself • In some cases detrending can produce artefacts • Background eclipsing binaries are source of confusion • Characterization of the transits require ...
Catching Andromeda`s Light
... Andromeda’s spiral arms, he thought they might also trace the Milky Way’s spiral arms. So in 1951, Morgan mapped the locations of all the red clouds of gas he and his colleagues could find. He discovered that the gas clouds lined up along spiral arms, indicating that we live in a spiral galaxy. Why ...
... Andromeda’s spiral arms, he thought they might also trace the Milky Way’s spiral arms. So in 1951, Morgan mapped the locations of all the red clouds of gas he and his colleagues could find. He discovered that the gas clouds lined up along spiral arms, indicating that we live in a spiral galaxy. Why ...
Document
... 1. Intelligent life is less common than planetary systems. Many planetary systems have been discovered by both ground and space based telescopes, and many more will be discovered in the near future. 2. In those planetary systems, intelligent life that can transmit a radio wave signal is even less co ...
... 1. Intelligent life is less common than planetary systems. Many planetary systems have been discovered by both ground and space based telescopes, and many more will be discovered in the near future. 2. In those planetary systems, intelligent life that can transmit a radio wave signal is even less co ...
Document
... Understand that the sun is many thousands of times closer to the earth than any other star. Light from the sun takes a few minutes to reach the earth, but light from the next nearest star takes a few years to arrive. The trip to that star would take the fastest rocket thousands of years.
... Understand that the sun is many thousands of times closer to the earth than any other star. Light from the sun takes a few minutes to reach the earth, but light from the next nearest star takes a few years to arrive. The trip to that star would take the fastest rocket thousands of years.
Educator`s Guide to the Cullman Hall of the Universe, Heilbrunn
... time to travel, the farther out into space we look, the further back in time we see. When we flip a switch we see the light almost instantly, but sunlight is eight minutes old, light from nearby stars has taken years or centuries to reach us, and light from distant galaxies can be millions or even b ...
... time to travel, the farther out into space we look, the further back in time we see. When we flip a switch we see the light almost instantly, but sunlight is eight minutes old, light from nearby stars has taken years or centuries to reach us, and light from distant galaxies can be millions or even b ...
Biodiversity through Earth history
... boundary are so high that it could not have been deposited by normal deposition, must have been a massive, sudden extraterrestrial source. • Most iridium on earth is in core, concentration in asteroids are much higher than on earth’s surface ...
... boundary are so high that it could not have been deposited by normal deposition, must have been a massive, sudden extraterrestrial source. • Most iridium on earth is in core, concentration in asteroids are much higher than on earth’s surface ...
Extrasolar Planets - University of Maryland Astronomy
... planets, and the fraction is going up. There are also some low-mass stars with planets, but these have been searched less thoroughly because we are interested in systems like ours. This fraction is high enough that planets really do appear pretty common. There might be a bias towards a higher probab ...
... planets, and the fraction is going up. There are also some low-mass stars with planets, but these have been searched less thoroughly because we are interested in systems like ours. This fraction is high enough that planets really do appear pretty common. There might be a bias towards a higher probab ...
Investigate Planets, Stars, Galaxies, and the Universe
... the city, state, country, and continent. Continue with Earth, the Solar System, the Milky Way Galaxy, the Virgo Supercluster, and the observable universe (the school’s “long address”). This will give students a sense of their place in space. Next, have them watch a video called “The Known Universe” ...
... the city, state, country, and continent. Continue with Earth, the Solar System, the Milky Way Galaxy, the Virgo Supercluster, and the observable universe (the school’s “long address”). This will give students a sense of their place in space. Next, have them watch a video called “The Known Universe” ...
Page 25 - Types of Galaxies
... • They tend to be smaller objects that are without definite shape and tend to have very hot newer stars mixed in with lots of gas and dust. • These galaxies often have active regions of star formation. Sometimes the irregular shape of these galaxies results from interactions or collisions between ga ...
... • They tend to be smaller objects that are without definite shape and tend to have very hot newer stars mixed in with lots of gas and dust. • These galaxies often have active regions of star formation. Sometimes the irregular shape of these galaxies results from interactions or collisions between ga ...
Size Scales - Leslie Looney
... Earth. (Paraphrasing Carl Sagan.) • Each of these stars may have planets. ...
... Earth. (Paraphrasing Carl Sagan.) • Each of these stars may have planets. ...
The Milky Way: Home to Star Clusters
... increasing in mass. It has long been known that our galaxy has fed on stars from other galaxies within our local group (e.g., the Sagittarius Dwarf Galaxy). In fact, one theory goes even further and implies that all globular clusters within the Milky Way are the leftovers of dwarf galaxies that have ...
... increasing in mass. It has long been known that our galaxy has fed on stars from other galaxies within our local group (e.g., the Sagittarius Dwarf Galaxy). In fact, one theory goes even further and implies that all globular clusters within the Milky Way are the leftovers of dwarf galaxies that have ...
Integrative Studies 410 Our Place in the Universe
... • Dark Matter is dark at all wavelengths, not just visible light • The Universe as a whole consists of up to 25% of Dark ...
... • Dark Matter is dark at all wavelengths, not just visible light • The Universe as a whole consists of up to 25% of Dark ...
Questions - Clever Teach
... Suggest why, when a galaxy has a very large red-shift, some of its visible light is not detected through the Earth’s atmosphere. ...
... Suggest why, when a galaxy has a very large red-shift, some of its visible light is not detected through the Earth’s atmosphere. ...
Our Place in Space
... should print out the cards (preferably in color) and laminate them so that the information on each object appears on the reverse side of the image of that object. ...
... should print out the cards (preferably in color) and laminate them so that the information on each object appears on the reverse side of the image of that object. ...
stars & galaxies
... The milKy Way… our home iN The sTars… • The Milky Way has a diameter of about 100,000 light years. • The nucleus is 2000 light years thick. • Our sun is located 30,000 light years from the nucleus. • It takes the sun 200 million years to ...
... The milKy Way… our home iN The sTars… • The Milky Way has a diameter of about 100,000 light years. • The nucleus is 2000 light years thick. • Our sun is located 30,000 light years from the nucleus. • It takes the sun 200 million years to ...
Lecture Eleven (Powerpoint format)
... Intringued, Thorne picked up the wormhole problem over the next several years and began pursuing it as an active research project. Inspired by his bold lead on such a far-out topic, other well-known scientists like Stephen Hawking and Igor Novikov also published work on wormhole theory. ...
... Intringued, Thorne picked up the wormhole problem over the next several years and began pursuing it as an active research project. Inspired by his bold lead on such a far-out topic, other well-known scientists like Stephen Hawking and Igor Novikov also published work on wormhole theory. ...
Sci-Fi Helper - Message from the Future
... Solution 7 - Slowing down and accelerating Signals that are always there in the Air Can people in the future send a message that gets slowed down or bounced around so that it arrives in the past? Since time and space are relative, it means that the time a signal is sent or received is unclear. You c ...
... Solution 7 - Slowing down and accelerating Signals that are always there in the Air Can people in the future send a message that gets slowed down or bounced around so that it arrives in the past? Since time and space are relative, it means that the time a signal is sent or received is unclear. You c ...
Document
... the corrective optics incorporated within WFPC2 compensate fully for Hubble's nearsightedness. • The new camera will allow Hubble to probe the universe with unprecedented clarity and sensitivity. • The picture clearly shows faint structure as small as 30 light-years across in a galaxy tens of millio ...
... the corrective optics incorporated within WFPC2 compensate fully for Hubble's nearsightedness. • The new camera will allow Hubble to probe the universe with unprecedented clarity and sensitivity. • The picture clearly shows faint structure as small as 30 light-years across in a galaxy tens of millio ...
Integrative Studies 410 Our Place in the Universe
... • there are ~ 100 billion galaxies in the observable Universe • measure distances to other galaxies using the periodluminosity relationship for Cepheid variables • Type I supernovae also used to measure distances – Predictable luminosity – a standard candle ...
... • there are ~ 100 billion galaxies in the observable Universe • measure distances to other galaxies using the periodluminosity relationship for Cepheid variables • Type I supernovae also used to measure distances – Predictable luminosity – a standard candle ...
Unit 1
... The first stars formed within this cloud, burning out quickly and violently. This added heavy elements to the cloud ...
... The first stars formed within this cloud, burning out quickly and violently. This added heavy elements to the cloud ...
3rd EXAM VERSION A key - Department of Physics and Astronomy
... 39. Recent results from very bright supernovae in very distant galaxies seem to indicate that the expansion of the universe A. is continuing at a constant rate and has done so since just after the Big Bang B. has now stopped and the universe will shortly begin to contract again toward a Big Crunch C ...
... 39. Recent results from very bright supernovae in very distant galaxies seem to indicate that the expansion of the universe A. is continuing at a constant rate and has done so since just after the Big Bang B. has now stopped and the universe will shortly begin to contract again toward a Big Crunch C ...
File
... Identify the celestial object in our solar system that has a period of rotation that is most similar to the period of rotation of Earth's Moon. Base your answers to questions 76 through 78 on the data table below and on your knowledge of Earth science. The data table shows five galaxies, A through E ...
... Identify the celestial object in our solar system that has a period of rotation that is most similar to the period of rotation of Earth's Moon. Base your answers to questions 76 through 78 on the data table below and on your knowledge of Earth science. The data table shows five galaxies, A through E ...
Chapter 17
... 15. How do we know the position of our sun and it's rotational velocity within the Galaxy? A. From radio waves reflected of the galactic nucleus. B. From its Doppler shift C. From the "fixed basis" of globular clusters in the galactic halo. D. From the proper motions of nearby open clusters. 16. Th ...
... 15. How do we know the position of our sun and it's rotational velocity within the Galaxy? A. From radio waves reflected of the galactic nucleus. B. From its Doppler shift C. From the "fixed basis" of globular clusters in the galactic halo. D. From the proper motions of nearby open clusters. 16. Th ...
Fermi paradox
The Fermi paradox (or Fermi's paradox) is the apparent contradiction between high estimates of the probability of the existence of extraterrestrial civilizations, such as in the Drake equation, and the lack of evidence for such civilizations. The basic points of the argument, made by physicists Enrico Fermi and Michael H. Hart, are: The Sun is a typical star, and there are billions of stars in the galaxy that are billions of years older. With high probability, some of these stars will have Earth-like planets, and if the earth is typical, some might develop intelligent life. Some of these civilizations might develop interstellar travel, a step the Earth is investigating now. Even at the slow pace of currently envisioned interstellar travel, the Milky Way galaxy could be completely traversed in about a million years.According to this line of thinking, the Earth should already have been visited by extraterrestrial aliens though Fermi saw no convincing evidence of this, nor any signs of alien intelligence anywhere in the observable universe, leading him to ask, ""Where is everybody?""