Training
... Freedman of the Observatories of the Carnegie Institution of Washington, observed this galaxy on 13 different occasions over the course of two months. Images were obtained with Hubble's Wide Field Planetary Camera 2 (WFPC2) through three different color filters. Based on their discovery and careful ...
... Freedman of the Observatories of the Carnegie Institution of Washington, observed this galaxy on 13 different occasions over the course of two months. Images were obtained with Hubble's Wide Field Planetary Camera 2 (WFPC2) through three different color filters. Based on their discovery and careful ...
Tragedy vs. Hope: What Future in an Open Universe?
... The planet Earth is bombarded by meteorites, and occasionally such impacts have lead to major catastrophes. Their influence on the biological evolution was profound, but life on Earth has continued. This will not be the case forever. The Sun has fused already a few percent of its hydrogen fuel into ...
... The planet Earth is bombarded by meteorites, and occasionally such impacts have lead to major catastrophes. Their influence on the biological evolution was profound, but life on Earth has continued. This will not be the case forever. The Sun has fused already a few percent of its hydrogen fuel into ...
- ORIGINS Space Telescope
... planned to be a large aperture, actively-cooled telescope covering a wide span of the mid- to far-infrared spectrum. Its imagers and spectrographs will enable a variety of surveys of the sky that will discover and characterize the most distant galaxies, Milky-Way, exoplanets, and the outer reaches o ...
... planned to be a large aperture, actively-cooled telescope covering a wide span of the mid- to far-infrared spectrum. Its imagers and spectrographs will enable a variety of surveys of the sky that will discover and characterize the most distant galaxies, Milky-Way, exoplanets, and the outer reaches o ...
Our Place in a Vast Universe
... rest and that it was the earth that revolved around the sun. (This reference makes Aristarchus the first person to propose the heliocentric theory, that the sun is at the center of the solar system.) In order to avoid observable changes in angles between the directions to the stars as the earth move ...
... rest and that it was the earth that revolved around the sun. (This reference makes Aristarchus the first person to propose the heliocentric theory, that the sun is at the center of the solar system.) In order to avoid observable changes in angles between the directions to the stars as the earth move ...
Cosmology Handouts
... Rainbows reveal that white light is a combination of all the colours. In 1666, Isaac Newton showed that white light could be separated into its component colours using glass prisms. Soon scientists were using this new tool to analyze the light coming from several different light sources. Some scient ...
... Rainbows reveal that white light is a combination of all the colours. In 1666, Isaac Newton showed that white light could be separated into its component colours using glass prisms. Soon scientists were using this new tool to analyze the light coming from several different light sources. Some scient ...
introduction to astronomy
... Compare the contributions made in the past with the advanced methods used today in the field of astronomy Learning objectives What you will learn as you master the competency: a. ...
... Compare the contributions made in the past with the advanced methods used today in the field of astronomy Learning objectives What you will learn as you master the competency: a. ...
Groups of Stars
... Irregular galaxies come in many shapes, are typically smaller than other types of galaxies, and are often located near larger galaxies. ...
... Irregular galaxies come in many shapes, are typically smaller than other types of galaxies, and are often located near larger galaxies. ...
telescope as time machine - Galaxy Evolution Explorer
... that gave the universe its start around 12 billion years ago (give or take a few billion years). The Galaxy Evolution Explorer, or GALEX for short, is an Earth-orbiting telescope that is looking back 10 billion years to help scientists understand how galaxies like our Milky Way came to be and how th ...
... that gave the universe its start around 12 billion years ago (give or take a few billion years). The Galaxy Evolution Explorer, or GALEX for short, is an Earth-orbiting telescope that is looking back 10 billion years to help scientists understand how galaxies like our Milky Way came to be and how th ...
Lesson 1 - Structure of the Universe - Hitchcock
... have a central bulge from which two or more spiral arms extend. • Elliptical galaxies look like spheres or ovals and do not have spiral arms. • Irregular galaxies appear as splotchy, irregularly shaped “blobs.” They are very active areas of star formation. ...
... have a central bulge from which two or more spiral arms extend. • Elliptical galaxies look like spheres or ovals and do not have spiral arms. • Irregular galaxies appear as splotchy, irregularly shaped “blobs.” They are very active areas of star formation. ...
Lesson 1 - Structure of the Universe - Hitchcock
... have a central bulge from which two or more spiral arms extend. • Elliptical galaxies look like spheres or ovals and do not have spiral arms. • Irregular galaxies appear as splotchy, irregularly shaped “blobs.” They are very active areas of star formation. ...
... have a central bulge from which two or more spiral arms extend. • Elliptical galaxies look like spheres or ovals and do not have spiral arms. • Irregular galaxies appear as splotchy, irregularly shaped “blobs.” They are very active areas of star formation. ...
The Planetarium Fleischmann Planetarium
... of their light into ultraviolet wavelengths. Older galaxies have less star-forming activity and thus give off less ultraviolet light. Both young and old stars radiate visible light, so young and old galaxies look similar when viewed in this wavelength. NASA’s Galaxy Evolution Explorer, with its high ...
... of their light into ultraviolet wavelengths. Older galaxies have less star-forming activity and thus give off less ultraviolet light. Both young and old stars radiate visible light, so young and old galaxies look similar when viewed in this wavelength. NASA’s Galaxy Evolution Explorer, with its high ...
Matrioshka Brains
... A common practice encountered in literature discussing the search for extraterrestrial life is the perspective of assuming and applying human characteristics and interests to alien species. Authors limit themselves by assuming the technologies available to aliens are substantially similar or only so ...
... A common practice encountered in literature discussing the search for extraterrestrial life is the perspective of assuming and applying human characteristics and interests to alien species. Authors limit themselves by assuming the technologies available to aliens are substantially similar or only so ...
Quiz Reviews - Orion Observatory
... 3. How was the first extrasolar planet orbiting a main sequence star found? Who discovered it? Why was this discovery such a surprise? 4. Describe the various methods of detecting extrasolar planets. Which method has found the most planets? 5. What is a “Hot Jupiter?” Why have most extrasolar planet ...
... 3. How was the first extrasolar planet orbiting a main sequence star found? Who discovered it? Why was this discovery such a surprise? 4. Describe the various methods of detecting extrasolar planets. Which method has found the most planets? 5. What is a “Hot Jupiter?” Why have most extrasolar planet ...
Habitable Planets Webquest
... 1. Water is thought to be what? ________________________________________________________________________ 2. What do greenhouse gases have to do with how habitable a planet is? 3. What are exoplanets? 4. How does the type of star change the habitable zone it has? Step 9: Search for “Habitable Exoplan ...
... 1. Water is thought to be what? ________________________________________________________________________ 2. What do greenhouse gases have to do with how habitable a planet is? 3. What are exoplanets? 4. How does the type of star change the habitable zone it has? Step 9: Search for “Habitable Exoplan ...
Name - crespiphysics
... Chapter 23: Goldilocks and the Three Planets 1. What fraction of the sun’s energy that is intercepted by the earth does the earth actually absorb? As a result, what is the earth’s average temperature in degrees Fahrenheit (yes, I’m making you perform a conversion!)? What would the earth’s average t ...
... Chapter 23: Goldilocks and the Three Planets 1. What fraction of the sun’s energy that is intercepted by the earth does the earth actually absorb? As a result, what is the earth’s average temperature in degrees Fahrenheit (yes, I’m making you perform a conversion!)? What would the earth’s average t ...
Stars and the Milky Way
... • the Milky Way is one of billions of galaxies in the universe • the Milky Way is made up of over 200 billion stars Other facts about the Milky Way • The Sun is just one of the stars in the Milky Way. • It is called the Milky Way because when astronomers looked up at the sky, they saw a line of ligh ...
... • the Milky Way is one of billions of galaxies in the universe • the Milky Way is made up of over 200 billion stars Other facts about the Milky Way • The Sun is just one of the stars in the Milky Way. • It is called the Milky Way because when astronomers looked up at the sky, they saw a line of ligh ...
ASTR 1120-001 Final Examination Phil Armitage, Bruce Ferguson
... 67. Suppose that we lived in a Big Crunch Universe at a time when it was contracting, rather than expanding. If you measured the velocities of many galaxies, you would find that typically: (a) Galaxies (except very nearby ones) were moving away from you, with the most distant ones moving away the sl ...
... 67. Suppose that we lived in a Big Crunch Universe at a time when it was contracting, rather than expanding. If you measured the velocities of many galaxies, you would find that typically: (a) Galaxies (except very nearby ones) were moving away from you, with the most distant ones moving away the sl ...
The Search for Directed Intelligence
... will see we now possess the capability to deploy this technology in a way that enables us to direct energy for revolutionary purposes one of which is to be “seen” across the entire universe. This is truly a remarkable statement. The question that is relevant here is “if there are other advanced civi ...
... will see we now possess the capability to deploy this technology in a way that enables us to direct energy for revolutionary purposes one of which is to be “seen” across the entire universe. This is truly a remarkable statement. The question that is relevant here is “if there are other advanced civi ...
p - INAF-OAT Trieste Users site
... – The heat would be produced by tidal interactions with Jupiter; the strong effects of vulcanism found in the first moon of Jupiter (Io), indicate that also on Europe tidal ...
... – The heat would be produced by tidal interactions with Jupiter; the strong effects of vulcanism found in the first moon of Jupiter (Io), indicate that also on Europe tidal ...
Watching Galaxies Form Near the Beginning of Time
... The Cosmic Time Machine The finite speed of light means that we always see things after they have happened–a delay of 8 minutes for the Sun and about 12 billion years for the most distant galaxies we can observe. In other words, ...
... The Cosmic Time Machine The finite speed of light means that we always see things after they have happened–a delay of 8 minutes for the Sun and about 12 billion years for the most distant galaxies we can observe. In other words, ...
Unit 2 Lesson 1
... How Big Is Big? How are distances in the universe measured? • Distances between most objects in the universe are so large that astronomers measure distances using the speed of light. A light-year is the distance that light travels through space in one year. Light travels through space at about 300 ...
... How Big Is Big? How are distances in the universe measured? • Distances between most objects in the universe are so large that astronomers measure distances using the speed of light. A light-year is the distance that light travels through space in one year. Light travels through space at about 300 ...
EarthComm_c1s3
... the big bang theory. However, it continues to be tested and examined. Another explanation is the steady-state theory. It is also known as the infinite-universe theory. This theory suggests the universe has always existed. It did not have a moment of creation, or a time zero. The theory suggests that ...
... the big bang theory. However, it continues to be tested and examined. Another explanation is the steady-state theory. It is also known as the infinite-universe theory. This theory suggests the universe has always existed. It did not have a moment of creation, or a time zero. The theory suggests that ...
Galaxies - SD43 Teacher Sites
... Earth have recently been found in gas clouds in space. Discovering this has encouraged many people to search for extraterrestrial life—that is, life beyond Earth. Astrobiologists study the possibility that extraterrestrial life exists. They suggest that if life can be found in the most hostile envir ...
... Earth have recently been found in gas clouds in space. Discovering this has encouraged many people to search for extraterrestrial life—that is, life beyond Earth. Astrobiologists study the possibility that extraterrestrial life exists. They suggest that if life can be found in the most hostile envir ...
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?""