GREENBELT, Md. — The first NASA spacecraft to image and map the dynamic interactions taking place where the hot solar wind slams into the cold expanse of space is ready for launch Oct. 19. The ...

Data from NASA’s Interstellar Boundary Explorer (IBEX) spacecraft reveal that neutral interstellar atoms are flowing into the solar system from a different direction than previously observed.

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The first all-sky maps developed by NASA's Interstellar Boundary Explorer (IBEX) spacecraft, the first mission to examine the global interactions occurring at the edge of the solar system, reveal ...

NASA’s Interstellar Boundary Explorer, known as IBEX, has spent more than a decade mapping an invisible structure of magnetic fields and charged particles that envelops the solar system far beyond ...