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we have through the exploration over the

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last 50 years of the solar system we

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have come to understand the planets that

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surround us and we have come to

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understand much of the things about our

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solar system but we're missing a

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fundamental part we don't know what the

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boundaries of our solar system are that

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surround our entire solar system and

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separate us from the galactic

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those boundaries protect

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us

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and explorers

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leaving earth and going into space from

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the harsh galactic radiation

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i am dave mccomas the principal

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investigator for ibex the interstellar

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ibex the interstellar boundary explorer

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is a new nasa mission to discover the

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interaction between our solar system and

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as principal investigator for the ibex

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mission i'm responsible for everything

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from the conception of the mission all

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the solar wind flowing out from the sun

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inflates this bubble that we call the

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heliosphere if it weren't for that

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bubble

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very dangerous galactic cosmic rays

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would be coming into the inner solar

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system and could in fact affect life on

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ibex's job is to study those boundaries

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and understand how they really work and

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tell us how this very important region