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sometimes a great discovery is a new

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perspective on the universe we thought

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we knew as the Voyager spacecraft sneer

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the edge of our sons reach scientists

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are getting a new look at the expanse

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and shape of the solar system over 30

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years ago Voyager 1 and 2 set out for

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Jupiter Saturn and beyond now's the twin

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spacecrafts explore the outer reaches

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some 9 billion miles away from Earth

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they have crossed the heliosphere the

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bubble of supersonic solar wind however

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when Voyager to cross this boundary much

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closer to the Sun than expected we

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received a picture of a squashed

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heliosphere rather than a round bubble

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the squashed heliosphere helps

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scientists build up a picture of how the

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Sun interacts with the space outside of

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our solar system the recently launched

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ibex or interstellar boundary Explorer

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will further the study of how the solar

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wind interacts with the cold gas between