Using data from NASA’s Interstellar Boundary Explorer (IBEX), researchers have accurately determined the strength and direction of the magnetic field outside what is known as the heliosphere. Solar wind and the interstellar medium interact to create the inner heliosheath, bounded on the inside by the termination shock, and on the outside by the heliopause. Image credit: NASA / IBEX / Adler Planetarium. The results were published earlier this month...