Download - Dr. Art Poland GMU/NASA GSFC
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Dr. Art Poland
GMU/NASA GSFC
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• We are moving off the planet
– Need satellites– We live out there – space
station– We are exploring – Mars
• There are problems to solve– Radiation– Spare parts
Why Study the Sun/Earth System
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Electromagnetic Spectrum
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View Emission Tubes
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Emission
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The Atom
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Space Station
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Galaxy• The Sun is at the
arrow 30,000 light-years from the center.
• The Sun orbits the center of the galaxy in about 225 million years.
• 100 billion other stars
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Galaxies are in Clusters
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Structure of Sun
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The Visible Sun
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SOHO Orbit
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EIT He CME
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EIT Corona
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CDS Multi-temperature Images
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Corona
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LASCO CME
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Question
What’s an Aurora?
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Aurora
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Aurora From Space STS 60
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Sun-Earth System -- Driven by 11 Year Solar Cycle
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EIT Solar Min-Max
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Why do we care about the heliosphere?
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SOHO Home Page
soho.nascom.nasa.gov