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Published online 17 October 2008 | Nature | doi:10.1038/news.2008.1177
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IBEX spacecraft set to map the final frontier
Probe will catch atoms from the edge of our Solar System's protective bubble.
A NASA mission to study our Solar System's final frontier is due to launch this weekend. The Interstellar Boundary Explorer (IBEX) will catch energetic particles streaming from the termination shock - the zone where the solar wind that blows from the Sun suddenly slows down as it slams into the thin, cold gas of interstellar space.
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