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AST 150: Radioactive Dating Game Activity
AST 150: Radioactive Dating Game Activity

... • To estimate the number of worlds in the Milky Way galaxy that have life • To think about the size and composition of the galaxy and how that affects the possibility of extraterrestrial life • To understand and estimate the terms of the Drake Equation Background Hundreds of new planets have been di ...
A Sample Report Edward Brown April 4, 2014
A Sample Report Edward Brown April 4, 2014

... Figure 1. Here is a figure of a random plot. Well, it is actually a comparison of the 3α reaction rate as evaluated by Caughlan & Fowler (1988) and by NACRE (Angulo et al. 1999). The thick gray line denotes the rate from the Caughlan & Fower (1988) observation the thin dished line. ...
pptx
pptx

... N* = the number of stars in the Milky Way = 200,000,000,000 fp = the fraction of stars that have “habitable planets” = 0.5 np = the number of habitable planets per system = 2 fl = the fraction of habitable planets where life evolves = 0.5 fi = the fraction of life-planets that evolve intelligence = ...
Questions to answer - high school teachers at CERN
Questions to answer - high school teachers at CERN

... then the sun and the planets are in the same plane. So the planets during the night must be in the same trajectory as the sun in the ...
AST 341 - Homework I - Solutions
AST 341 - Homework I - Solutions

... the textbook, we can find the absolute bolometric magnitude of the star from its flux and from comparing it to the absolute magnitude and the luminosity of the Sun,  L  ...
There are numerous other ways in which human civilization could
There are numerous other ways in which human civilization could

... describe their transport but relativistic limits in this argument are unlikely to change. Nothing is learned about more short lived civilizations. Other arguments that civilizations will not live that long were given. Panspermia: Undirected panspermia is probably possible and may have occurred once ...
here - Just A Theory
here - Just A Theory

... UFO stories, Roswell conspiracies and theories of inter-galactic pyramid builders aside, there is no scientific evidence that we have ever been visited by an alien civilisation. The reason why could lie in just how vast space is. Our nearest star system Alpha Centauri, 4.3 light years away, at the s ...
Life in the Universe
Life in the Universe

... 1. Old enough to allow time for evolution (rules out high-mass stars ~1%) 2. Need to have stable orbits (might rule out binary/multiple star systems ~50%) 3. Size of habitable zone: region where a planet of the right size could support liquid water ...
Life in Space & Drake`s Equation
Life in Space & Drake`s Equation

... 1. Old enough to allow time for evolution (rules out high-mass stars ~1%) 2. Need to have stable orbits (might rule out binary/multiple star systems ~50%) 3. Size of habitable zone: region where a planet of the right size could support liquid water ...
Homework 1 - Course Pages of Physics Department
Homework 1 - Course Pages of Physics Department

... geometry). For simplicity, let’s also assume that all stars are the same size as the sun, and distributed evenly in space. Show that the line of sight meets the surface of a star in every direction, sooner or later. Use Euclidean geometry. (b) Let’s put in some numbers: The luminosity density of the ...
Physics 127 Descriptive Astronomy Homework #3 Key (Chapter 2
Physics 127 Descriptive Astronomy Homework #3 Key (Chapter 2

... 2-2. A cellular phone is actually a radio transmitter and receiver. You receive an incoming call in the form of a wave of frequency 880.65 MHz. What is the wavelength (in meters) of this wave? Using the equation f = c/ found in the second column of p. 38 of the text, we can solve for the wavelength ...
Document
Document

... L= length of time civilizations release detectable signals ...
Where a limit?
Where a limit?

... covered with a cloud of a dust and gases rotate also. ...
Small Planets of our Solar System (Pluto is a Dwarf Planet)
Small Planets of our Solar System (Pluto is a Dwarf Planet)

... ...
HW8 - UCSB Physics
HW8 - UCSB Physics

... 21.50) Let us begin with the proof. In the previous solution it was stated that the volume of a black hole is given by V = 43 πrs3 . To find out the mass dependency of this equation we need to recall that the Schwarzschild radius is defined as rs = 2GM c2 . Substituting into our equation for V we fi ...
Paul Lunn: Sonification Techniques for Astronomical Data Exploration
Paul Lunn: Sonification Techniques for Astronomical Data Exploration

... N = R fp n e fl fi f c L 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 = frac ...
Astrobio
Astrobio

... Astrobiology: the origin, evolution, distribution, and future of life in the universe Outline of this class: Life, extreme life on earth Where else in solar system could life exist? Mars, Titan& Europa, Habitable zone (review), difficulty with estimating probability of life, Drake equation for estim ...
Intelligent Life in the Milky Way Galaxy
Intelligent Life in the Milky Way Galaxy

... to the size of the U.S. - - How far away is the nearest habitable planet? ...
C472 Continuous Assessment: Essay #2
C472 Continuous Assessment: Essay #2

... fermentation to redox reactions, and it can be assumed that these mechanisms can also be in place on other planets, so the necessary reactants would have to be present. The third major vital consideration is the existence of a medium in which chemical reactions can occur, the terrestrial version bei ...
Carter K 1 - Mrs. Anthony`s English 2
Carter K 1 - Mrs. Anthony`s English 2

... probability of life. There is a one in 10 billion trillion chance that there is no other life, and in our galaxy alone, there is a one in 60 billion chance for life, and that is being conservative. There was an astronomer named Dr. Frank Drake, he developed an equation in 1961 to tell us the probabi ...
34_alone
34_alone

... • No known defense except to move far away. • Low density of stars near sun suggest that a very close supernova is very rare! • Also worry about gamma ray burst (collapse of ...
Extra-Solar Planets
Extra-Solar Planets

... A planet needs the right star! Constraints on star systems: 1) Old enough to allow time for evolution (rules out high-mass stars - 1%) 2) Need to have stable orbits (might rule out binary/multiple star systems - 50%) 3) Size of “habitable zone”: region in which a planet of the right size could have ...
Project topics
Project topics

... 1. Equipment and instruments that explore the universe (telescopes, satellites, probes, rockets, shuttles etc.). 2. Electromagnetic spectrum and its importance in astronomy. 3. Spectroscopes and the spectrums of stars. Include information about a spectroscope, spectrums of different gases, the Doppl ...
Teacher notes and student sheets
Teacher notes and student sheets

... Student sheets ...
SETI: First Considerations (PowerPoint)
SETI: First Considerations (PowerPoint)

... The Milky Way is forming about one new star a year, and an ‘average’ star (like the Sun) might last about ten billion years. In the ‘steady state,’ there will be at least several billion radiating stars out there. Stars much more massive than the Sun burn up their fuel very quickly, so life won’t ev ...
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Drake equation

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