dr. art poland gmu/nasa gsfc
Post on 03-Jan-2016
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Dr. Art Poland
GMU/NASA GSFC
• 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
Electromagnetic Spectrum
View Emission Tubes
Emission
The Atom
Space Station
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
Galaxies are in Clusters
Structure of Sun
The Visible Sun
SOHO Orbit
EIT He CME
EIT Corona
CDS Multi-temperature Images
Corona
LASCO CME
Question
What’s an Aurora?
Aurora
Aurora From Space STS 60
Sun-Earth System -- Driven by 11 Year Solar Cycle
EIT Solar Min-Max
Why do we care about the heliosphere?
SOHO Home Page
soho.nascom.nasa.gov
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