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Using the Interstellar Boundary Explorer (IBEX), NASA has sampled the galactic wind that has traveled from outside our solar system. Four types of atoms were found to be different from what we have in our Solar System
IBEX: Glimpses of the Interstellar Material Beyond our Solar System
The results? It's an alien environment out there: the material in that galactic wind doesn't look like the same stuff our solar system is made of.
"We've directly measured four separate types of atoms from interstellar space and the composition just doesn't match up with what we see in the solar system," says Eric Christian, mission scientist for IBEX at NASA's Goddard Space Flight Center in Greenbelt, Md. "IBEX's observations shed a whole new light on the mysterious zone where the solar system ends and interstellar space begins."
More than just helping to determine the distribution of elements in the galactic wind, these new measurements give clues about how and where our solar system formed, the forces that physically shape our solar system, and even the history of other stars in the Milky Way.
There's also some informational videos in the source article. Interesting news, sounds exciting and very intruiging.