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  • Shows Index
    • Aliens (2)
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    Past Shows
    • Ep. 166: Multiverses
    • Ep. 165: Doppler Effect
    • Ep. 164: Inside the Atom
    • Ep. 163: Auroras
    • Ep. 162: Edwin Hubble
    • Ep. 161: Launch Facilities
    • Ep. 160: Eclipses
    • Ep. 159: Planet X
    • Ep. 158: Pulsars
    • Ep. 157: Constellations
    • Ep. 156: Famous Stars
    • Ep. 155: Dwarf Stars
    • Ep. 154: Dragon*Con Live with Seth Shostak
    • Ep. 153: Dark Skies
    • Ep. 152: Binary Stars
    • Ep. 151: Atmospheres
    • Ep. 150: Telescopes, the Next Level
    • Ep. 149: Constellation Program
    • Ep. 148: Astronomy and New Media
    • Ep. 147: How to Be Taken Seriously By Scientists
    • Ep. 146: Astronomy Research from Idea to Publication
    • Ep. 145: Interstellar Travel
    • Questions Show: Imaging Extrasolar Planets, Infinite Universe, Inside a Black Hole
    • Ep. 144: Space Elevators
    • Questions Show: Matter Balance, Jumping Light Speed and Black Hole Star Formation
    • Ep. 143: Astrobiology
    • Questions Show: Black black holes, Unbalancing the Earth, and Space Pollution
    • Ep. 142: Plate Tectonics
    • Questions Show: Avoiding the Heat Death, Orbiting Galaxies, and the Dangers of Space Radiation
    • Ep. 141: Volcanoes, Hot and Cold
    • Ep. 140: Entanglement
    • Questions Show: Galileoscope, Black Hole Time, and What Exactly is Energy?
    • Questions Show: Telescope Suggestions, Black Hole Energy, and Universal Time
    • Ep. 139: Energy Levels and Spectra
    • Questions: An Unlocked Moon, Energy Into Black Holes, and the Space Station's Orbit
    • Ep. 138: Quantum Mechanics
    • Questions Show: Hidden Fusion, the Speed of Neutrinos, and Hawking Radiation
    • Ep. 137: Large Scale Structure of the Universe
    • Questions Show: The Source of Atmospheres, the Vanishing Moon, and a Glow After Sunset
    • Ep. 136: Gamma Ray Astronomy
    • Questions Show: Dangerous Solar Flares, Higgs Boson Insights, and Light Speed Flashlights
    • Ep. 135: X-Ray Astronomy
    • Questions Show: NorthEast Astronomy Forum (NEAF)
    • Ep. 134: Ultraviolet Astronomy
    • Ep. 133: Optical Astronomy
    • Questions Show: Undoing Inflation, Searching for Water, and Seeing Everything a Black Hole's Ever Eaten
    • Ep. 132: Infrared Astronomy
    • Episode 131: Submillimeter Astronomy
    • Questions Show: Decelerating Black Holes, Earth-Sun Tidal Lock, and the Crushing Gravity of Dark Matter
    • Episode 130: Radio Astronomy
    • Questions Show: Multiple Big Bangs, Satellite Collisions and the Size of the Universe
    • Ep. 129: Interferometry
    • Questions Show: Shooting Lasers at the Moon and Losing Contact with Rovers
    • Ep. 128: Dust
    • Ep. 127: The US Space Shuttle
    • Ep. 126 From Skeptics Guide with Questions
    • Ep. 125: A Zoo of Extrasolar Planets
    • Questions Show: Moons and the Drake Equation, Stars in the Void, and Rings Around Stars
    • Ep. 124: Space Capsules, Part 1 – Vostok, Mercury and Gemini
    • Ep. 123: Homogeneity
    • Ep. 122: How Old is the Universe?
    • Questions Show: Stellar Roche Limits, Seeing Black Holes, and Water on Mars
    • Ep. 121: Spacesuits
    • Ep. 120: The Christmas Star
    • Questions Show: Different Fields of Astronomy, Our Sibling Stars, and Hidden Lagrange Points
    • Ep. 119: Robots in Space
    • Questions Show: Distance in Space, Changing Earth's Orbit, and Different Sized Stars
    • Ep. 118: Sky Surveys
    • Ep. 117: Time
    • Ep. 116: Molecules in Space
    • Ep. 115: The Moon, Part 3: Return to the Moon
    • Questions Show: Spiral Arms, Seismic Waves on the Sun, and our Favorite Gear
    • Ep. 114: The Moon, Part 2 – Exploration of the Moon
    • Questions Show: Ice in Space, Expansion of the Universe, and Death from the Skies
    • Ep. 113: The Moon, Part 1
    • Questions Show: Orbit of the Planets, Green Stars, and Oort Cloud Contamination
    • Ep. 112: Death From the Skies, Interview with Phil Plait
    • Questions Show: Relativity, Relativity and More Relativity
    • Ep. 111: Nebulae
    • Questions Show: Galactic Dust, the Speed of Photons, and the Big Bang Calculations
    • Ep. 110: The Search for Extraterrestrial Intelligence
    • Questions Show: Alignment with the Galactic Plane, Destruction from Venus, and the Death of the Solar System
    • Ep. 109: The Life of Other Stars
    • Questions Show – Running Out of Gravitons and Hitting the Brakes at Light Speed
    • Ep. 108: The Life of the Sun
    • Questions Show – light speed, Andromeda galaxy, dark matter and black holes
    • Ep. 107: Nucleosynthesis: Elements from Stars
    • Questions Show – Black Hole Surfaces, Magnetic Field Strengths, and the Speed of Gravitons
    • Ep. 106: The Search for the Theory of Everything
    • Student Questions Show: Leelanau School
    • Ep. 105: The Strong and Weak Nuclear Forces
    • Ep 104: Science Fiction at Dragon*Con with Plait and Grazier
    • Ep. 103: Electromagnetism
    • Ep 102: Gravity
    • Ep. 101: Advanced Propulsion Systems
    • Ep. 100: Rockets
    • Ep. 99: The Milky Way
    • Ep. 98: Quasars
    • Ep. 97: Galaxies
    • Ep. 96: Humans to Mars, Part 3 – Terraforming Mars
    • Student Questions: Collinsville High School
    • Ep. 95: Humans to Mars, Part 2 – Colonists
    • Ep 94: Humans to Mars, Part 1 – Scientists
    • Ep. 93: Missions to Mars, Part 2
    • Ep. 92: Missions to Mars, Part 1
    • Ep. 91: The Search for Water on Mars
    • Ep. 90: The Scientific Method
    • Ep. 89: Adaptive Optics
    • Ep. 88: The Hubble Space Telescope
    • Ep. 87: The End of the Universe Part 2: The End of Everything
    • Ep. 86: The End of the Universe Part 1: The End of the Solar System
    • Ep. 85: Detectors
    • Ep. 84: Getting Around the Solar System
    • Ep. 83: Wave Particle Duality
    • Ep. 82: Space Junk
    • Ep. 81: Questions on the Shape, Size and Centre of the Universe
    • Ep. 80: Craters
    • Ep. 79: How Big is the Universe?
    • Ep. 78: What is the Shape of the Universe?
    • Ep. 77: Where is the Centre of the Universe?
    • Ep. 76: Lagrange Points
    • Student Questions: Curtis High School
    • Ep. 75: Stellar Populations
    • Ep. 74: Antimatter
    • Ep. 73: Questions Show #8
    • Ep. 72: Cosmic Rays
    • Ep. 71: Gravitational Waves
    • Ep. 70: How To Win a Nobel Prize
    • Student Questions: Farmersburg
    • Ep. 69: The Large Hadron Collider and the Search for the Higgs-Boson
    • Ep. 68: Globular Clusters
    • Ep. 67: Building a Career in Astronomy
    • Ep. 66: How Amateurs Can Contribute to Astronomy
    • Ep. 65: The End of Our Tour Through the Solar System
    • Ep. 64: Pluto and the Icy Outer Solar System
    • Ep. 63: Neptune
    • Ep. 62: Uranus
    • Ep. 61: Saturn's Moons
    • Ep. 60: Questions Show #7
    • Ep. 59: Saturn
    • Ep. 58: Inflation
    • Ep. 57: Jupiter's Moons
    • Ep. 56: Jupiter
    • Ep. 55: The Asteroid Belt
    • Ep. 54: Questions Show #6
    • Ep. 53: Astronomy in Science Fiction
    • Special Episode: Panspermia
    • Ep. 52: Mars
    • Ep. 51: Earth
    • Ep. 50: Venus


Ep. 153: Dark Skies

  • October 1st, 2009
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Earth at night

Earth at night

If you live in a city, it's possible that you've never seen the Milky Way with your own eyes. To really appreciate everything the night skies have to offer, you've got to get out of the city, away from the lights, where the skies are really dark. But those places are getting harder and harder to find. Let's talk about what you can do to find dark skies, fight to make the skies darker, and how to make the most of wherever you live.

Ep. 153: Dark Skies

  • International Dark Sky Association
  • Dark Skies Awareness for IYA
  • Sky & Telescopes Dark Skies resources
  • Dark Sky Society
  • GLOBE at Night
  • The Great World Wide Star Count
  • Dark Sky sites in the US and Canada
  • Clear Dark Sky: The same people who bring you the "Clear Sky Clock" also have data on local light pollution, also available as high-resolution maps of light pollution levels. A map for each continent is available for download as separate files.
  • A Dark Adapted Eye -- Astroblog
  • How to easily dark adapt your laptop screen and flashlights –aperture fever
  • DarkAdapted software
  • Good Neighbor Outdoor lighting — Sky & Telescope
  • Examples of good outdoor lighting — Skykeepers
  • Sky quality meter



Comments
  1. evirus Says:
    October 1st, 2009 at 8:52 pm

    In the anime "Macross Zero" the priestess of a primitive society regards a man's attempt to fix a generator which used to power lights across the island, as an attempt to steal away the stars.

    http://www.youtube.com/watch?v=zmKtixeIM34
    running from 1:20 to 2:28

  2. Sticks Says:
    October 5th, 2009 at 10:00 am

    This is all very well for you across the pond, but what about us in the UK where we are a crowded little island.

  3. Dan Says:
    October 5th, 2009 at 12:21 pm

    Here's a simple test to check if your outdoor lighting is good for dark skies. Check if you can see the lightbulb from outside the area you intended to illuminate. If you can't, you've done it right.

  4. Steven Says:
    October 8th, 2009 at 5:55 am

    I'm curious if anyone knows what positive effect – if any – an observatory building would have on diminishing the effects of light pollution in a suburban area that is heavily lighted.

    Also wondering if the style of observatory – a slit vs the whole roof coming off – or the height above ground (i.e.. a single story height structure vs a two story height structure) would have an impact.

  5. Conway Says:
    October 16th, 2009 at 2:23 am

    We still have plenty of open dark space at night down here in Australia… The view is a true wonder to behold if you ever make your way out the the outback on a clear night..

  6. mikekoz68 Says:
    November 23rd, 2009 at 11:45 am

    Just went to a presentation by Terrence Dickinson a leading Canadian astronomer and while he said Australia is good, the best in the world is in Chile. Along with the VLT, Chile also boasts an outdoor obseratory open to the public in a climate where it NEVER rains


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