Something spooky is happening at the edge of the solar system

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Just in time for Halloween, scientists have discovered something spooky and strange happening at the edge of the solar system: the heliopause, the boundary between the heliosphere (the bubble of solar wind that surrounds the solar system) and the interstellar medium (the material between the stars) seems to be undulating and creating oblique angles in an unexpected way.

The general concept that the heliopause changes shape is not new; over the last decade, researchers have determined that it is not static. They made this discovery using data from traveler 1 Y traveler 2the only two spacecraft to have left the heliosphere so far, as well as NASA’s Interstellar Boundary Explorer (IBEX), which studies the emissions of energetic neutral atoms (ENA) that are created when the solar winds and the interstellar medium interact.

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