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(Narrator) Sometimes a great discovery is a new perspective on the universe we thought we knew.
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As the Voyager spacecrafts near the edge of our Suns reach. Scientists
are getting a new look at the expanse and shape of the solar system.
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Over 30 years ago Voyager 1 and 2 set out for Jupiter Saturn and beyond.
(rocket engins)
Now as the twin spacecrafts explored the outer reaches some nine billion miles
away from Earth. They have crossed the heliosphere, the bubble of supersonic solar wind
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However when Voyager 2 crossed this boundary much closer to the Sun than
expected. We received a picture of a squashed heliosphere rather than a round bubble.
The squashed heliosphere helps scientists build up a picture of how the
Sun interacts with the space outside of our solar system. The recently launched
IBEX or Interstellar Boundary Explorer will further the study of how the solar
wind interacts with the cold gas between stars.
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