IBEX Spacecraft Measures ‘alien’ Particles from Outside Solar System

NASA’s Interstellar Boundary Explorer, or IBEX, spacecraft has made it possible for scientists to construct the first comprehensive sky map of our solar system and its location in the Milky Way galaxy. The new view will change the way researchers view and study the interaction between our galaxy and sun.

Using data from IBEX, an international team of researchers has measured neutral “alien” particles entering our solar system from interstellar space. A suite of studies published in the Astrophysical Journal provide a first look at the constituents of the interstellar medium, the matter between star systems, and how they interact with our heliosphere.

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