The International Heliophysical Year is a UN-sponsored but scientifically driven international program of scientific collaboration to understand external drivers of planetary environments and universal processes in
solar-terrestrial-
planetary-
heliospheric physics. The IHY will focus on advancements in all aspects of the
heliosphere and its interaction with the
interstellar medium. This effort will culminate in the "International Heliophysical Year" (IHY) in
2007-
2008.
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