stars above bryce2010

Stars Above, Earth Below

Adventures of an Astronomer in the National Parks

Dr. Tyler Nordgren

Denali National Park

Bryce Canyon National Park

Arches National Park

Chaco Culture National Historical Park

Glacier National Park

Bryce Canyon National Park

Bryce Canyon National Park

Bryce Canyon National Park

Arches National Park

Rocky Mountain National Park

Acadia National Park

Acadia National Park

Acadia National Park

Acadia National Park

Acadia National Park

Acadia National Park

Hubble Space Telescope – M51

Acadia National Park

NASA New Horizons

NASA/JPL Galileo

NASA/JPL Cassini

NASA/JPL Cassini

NASA/JPL Cassini

Yellowstone National Park

Chaco Culture National Historical Park

Chaco Culture National Historical Park

Night on Earth – ESA/Rosetta Spacecraft

Light Pollution

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Death Valley National Park – NPS Night Sky Team

Joshua Tree National Park – NPS Night Sky Team

Light Pollution

Who Cares?

• Loss of Natural Night affects biosphere:– Nocturnal species (raptors, turtles, etc)– Humans

• Waste of electricity, money, resources.

Arches National Park

Light Pollution

Light Pollution

Direct Waste- 50%

Glare- 10%

Productive- 40%

McGraw Ranch – Rocky Mountain NP

Lake Yellowstone Hotel– Yellowstone NP

Lake McDonald Lodge– Glacier NP

www.darksky.org

Natural Bridges National Monument – NPS Night Sky Team

Natural Bridges National Monument

Yosemite National Park

Available in Mach

Thank you

www.Planetary.org/Parks

Stars Above,Earth Below

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