Origins of the Universe
... from each other, but they appear grouped together when viewed from Earth • One of the 88 sectors into which astronomers divide the sphere of the skynamed after a traditional constellation in that sector • Patterns of constellations are dynamic; therefore, the constellations of 100,000 years ago are ...
... from each other, but they appear grouped together when viewed from Earth • One of the 88 sectors into which astronomers divide the sphere of the skynamed after a traditional constellation in that sector • Patterns of constellations are dynamic; therefore, the constellations of 100,000 years ago are ...
How to find ET with infrared light
... infrared observations of the planet, we can separate the signature of the ETC from natural variations (due to geography) on the rotating planet’s surface. Unlike natural planetary heat sources (like volcanoes) and absorbers (like clouds), a civilization’s thermal footprint is likely to have a temper ...
... infrared observations of the planet, we can separate the signature of the ETC from natural variations (due to geography) on the rotating planet’s surface. Unlike natural planetary heat sources (like volcanoes) and absorbers (like clouds), a civilization’s thermal footprint is likely to have a temper ...
The search for extraterrestrial intelligence has mostly revolved
... infrared observations of the planet, we can separate the signature of the ETC from natural variations (due to geography) on the rotating planet’s surface. Unlike natural planetary heat sources (like volcanoes) and absorbers (like clouds), a civilization’s thermal footprint is likely to have a temper ...
... infrared observations of the planet, we can separate the signature of the ETC from natural variations (due to geography) on the rotating planet’s surface. Unlike natural planetary heat sources (like volcanoes) and absorbers (like clouds), a civilization’s thermal footprint is likely to have a temper ...
Exoplanet Discoveries and the Fermi Paradox
... Frank Drake examined the probability of extraterrestrial intelligence by developing his famous equation in the 1960s, which stated that the number of intelligence species in the galaxy is the product of 7 factors, from the rate of star formation through the probabilities of planets, habitability, li ...
... Frank Drake examined the probability of extraterrestrial intelligence by developing his famous equation in the 1960s, which stated that the number of intelligence species in the galaxy is the product of 7 factors, from the rate of star formation through the probabilities of planets, habitability, li ...
Ch. 28 Test Topics
... -Know the closest galaxy similar in size (Andromeda; 2.5 million ly) and closest star to our Sun (Proxima Centauri; 4.2 ly) ...
... -Know the closest galaxy similar in size (Andromeda; 2.5 million ly) and closest star to our Sun (Proxima Centauri; 4.2 ly) ...
Lecture 2
... Class will be in Fiske Planetarium on Tuesday (geodesic dome west of events center) ...
... Class will be in Fiske Planetarium on Tuesday (geodesic dome west of events center) ...
No Slide Title
... Technology that allows doctors to look at the soft tissues of the body without cutting. ...
... Technology that allows doctors to look at the soft tissues of the body without cutting. ...
Outer Space Study Guide
... Essential Question: With technology always advancing, what is left to discover in space that we can’t see from Earth? This is another exciting theme to learn about. In the next few years ordinary people can travel to space thanks to Virgin Galactic’s idea. Anyone can view space from their computer t ...
... Essential Question: With technology always advancing, what is left to discover in space that we can’t see from Earth? This is another exciting theme to learn about. In the next few years ordinary people can travel to space thanks to Virgin Galactic’s idea. Anyone can view space from their computer t ...
Celestial Objects
... There are over 100 billion stars in a galaxy and there are over 100 billion galaxies. Classified by shape: elliptical, irregular , spiral ...
... There are over 100 billion stars in a galaxy and there are over 100 billion galaxies. Classified by shape: elliptical, irregular , spiral ...
Ch. 27.3 Star Groups
... One complete rotation in 200 million years. Our sun is about 30,000 light-years from the center. ...
... One complete rotation in 200 million years. Our sun is about 30,000 light-years from the center. ...
Astronomy I Ex.2
... What is the (approximate) age of the universe in Gyr? 3. Convert the following distances in cm to distances in AU: a) Approximate distance from the earth to the sun: 1.44 × 1013 cm b) Approximate distance from the earth to the next nearest star - Alpha Centauri: 3.97 × 1018 cm c) Approximate distanc ...
... What is the (approximate) age of the universe in Gyr? 3. Convert the following distances in cm to distances in AU: a) Approximate distance from the earth to the sun: 1.44 × 1013 cm b) Approximate distance from the earth to the next nearest star - Alpha Centauri: 3.97 × 1018 cm c) Approximate distanc ...
SR 51(5) 19-21
... stars beyond our solar system. There are planets around some of these stars, just as Earth goes around the Sun. The decades old (~50 years), Search for Extra Terrestrial Intelligence (SETI) experiment has not yet detected any radio signal. But it is argued that this is too short a time in comparison ...
... stars beyond our solar system. There are planets around some of these stars, just as Earth goes around the Sun. The decades old (~50 years), Search for Extra Terrestrial Intelligence (SETI) experiment has not yet detected any radio signal. But it is argued that this is too short a time in comparison ...
Overview Notes - School District of La Crosse
... A. Astrophysics- the use of atomic physics to explain how various forms of radiation are created. 1. a stars radiation is the summation of all the radiation given off by the individual atoms of the star( quantum mechanics). a. the interaction of gravity holding the atoms together in the star and und ...
... A. Astrophysics- the use of atomic physics to explain how various forms of radiation are created. 1. a stars radiation is the summation of all the radiation given off by the individual atoms of the star( quantum mechanics). a. the interaction of gravity holding the atoms together in the star and und ...
Origin and Age of the Universe
... 2. What do the majority of scientists believe was the origin of our Universe? ...
... 2. What do the majority of scientists believe was the origin of our Universe? ...
Overview - School District of La Crosse
... A. Astrophysics- the use of atomic physics to explain how various forms of radiation are created. 1. a stars radiation is the summation of all the radiation given off by the individual atoms of the star( quantum mechanics). a. the interaction of gravity holding the atoms together in the star and und ...
... A. Astrophysics- the use of atomic physics to explain how various forms of radiation are created. 1. a stars radiation is the summation of all the radiation given off by the individual atoms of the star( quantum mechanics). a. the interaction of gravity holding the atoms together in the star and und ...
Lecture 13
... Life in the Universe • 20th Century observations of many planets caused the topic of life in the Universe to wane • But there is renewed interest in thinking about life in the Universe – Life arose very early in Earth’s history – Lab experiments indicate that you can form the building blocks of lif ...
... Life in the Universe • 20th Century observations of many planets caused the topic of life in the Universe to wane • But there is renewed interest in thinking about life in the Universe – Life arose very early in Earth’s history – Lab experiments indicate that you can form the building blocks of lif ...
Describe essential ideas about the composition and structure of the
... selected past and present scientists in the field of astronomy. Identify and articulate space program efforts to investigate possibilities of living in space and on other planets. Explain essential ideas about the composition and structure of the universe. Compare the basic structures of the uni ...
... selected past and present scientists in the field of astronomy. Identify and articulate space program efforts to investigate possibilities of living in space and on other planets. Explain essential ideas about the composition and structure of the universe. Compare the basic structures of the uni ...
Teacher notes and student sheets
... There are a lot of stars in the galaxy – about 100 billion, which we can write as 100 000 000 000 or as 1011. That is the value of S in the equation. Since the 1990s, very many ‘exoplanets’ have been found. It is estimated that much more than 10% of Sun-like stars have planets in orbit around them. ...
... There are a lot of stars in the galaxy – about 100 billion, which we can write as 100 000 000 000 or as 1011. That is the value of S in the equation. Since the 1990s, very many ‘exoplanets’ have been found. It is estimated that much more than 10% of Sun-like stars have planets in orbit around them. ...
And let there be light!
... Ptolemy’s model stood unchallenged for 1400 years. This was due to the fact that it proposed that Earth was the center of the universe and this matched with the Church’s teaching that Earth and its inhabitants were the center the universe. The geocentric(=earth-centered) system then become an articl ...
... Ptolemy’s model stood unchallenged for 1400 years. This was due to the fact that it proposed that Earth was the center of the universe and this matched with the Church’s teaching that Earth and its inhabitants were the center the universe. The geocentric(=earth-centered) system then become an articl ...
Paul Lunn: Sonification Techniques for Astronomical Data Exploration
... N = number of advanced technological civilisations R = number of new stars formed each year fp = fraction of stars with planets ne = Number of planets that can support life fl = fraction of planets which have life fi = fraction of planets where life is intelligent fc = fraction of planets where life ...
... N = number of advanced technological civilisations R = number of new stars formed each year fp = fraction of stars with planets ne = Number of planets that can support life fl = fraction of planets which have life fi = fraction of planets where life is intelligent fc = fraction of planets where life ...
notes_chapter1 - Auburn University
... Hydrogen fused to form new light elements (He, Be, Li, B) via big bang nucleosynthesis. The Universe continued to… ...
... Hydrogen fused to form new light elements (He, Be, Li, B) via big bang nucleosynthesis. The Universe continued to… ...
Astronomy and Our Origins
... • Scientists believe the entire universe began as a single, one dimensional speck that exploded into existence. • This idea is called the Big Bang Theory! • Do we know for sure…of course not…we could be right or wrong. We will never know. • But we do have a lot of evidence to support our hypothesis. ...
... • Scientists believe the entire universe began as a single, one dimensional speck that exploded into existence. • This idea is called the Big Bang Theory! • Do we know for sure…of course not…we could be right or wrong. We will never know. • But we do have a lot of evidence to support our hypothesis. ...
Is Anyone Out There? Solving the Drake Equation
... Nearest random one is 1000 light years away! Life (all life) is RARE! If intelligent life is UNIQUE to the Earth then either: ...
... Nearest random one is 1000 light years away! Life (all life) is RARE! If intelligent life is UNIQUE to the Earth then either: ...
Document
... Possible solutions to the Fermi paradox 2. Low probability of intelligent life • Life seems to appear quite easily in favorable conditions • But maybe it needs very special conditions for intelligence to emerge (= to become an asset in natural selection) • On Earth, it took more than 2 billion years ...
... Possible solutions to the Fermi paradox 2. Low probability of intelligent life • Life seems to appear quite easily in favorable conditions • But maybe it needs very special conditions for intelligence to emerge (= to become an asset in natural selection) • On Earth, it took more than 2 billion years ...
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?""