![]() ![]() The interstellar medium contains the bubble and holds it in a more spherical configuration. ![]() ![]() The interstellar magnetic field (smoky gray vertical stripes) parts and slides around the bubble of hot, high pressure particles. As the animation zooms away from the sun, it shows an artist's concept of the interstellar medium (in black arrows) flowing past the heliosheath. This animation starts with our sun and pulls out to show us the heliosphere (gray) and the heliosheath (yellow) of our solar system. The sensor on Cassini detects hot particles known as energetic neutral atoms at high energies, complementary to instruments on the NASA Interstellar Boundary Explorer mission. The scientists also looked at how the heliosphere and heliosheath move through the interstellar medium together. Scientists on the Cassini mission used the Ion and Neutral Camera sensor on the Magnetospheric Imaging Instrument to look at the interaction of these plasma bubbles with the interstellar medium. It disturbs the solar wind so much as to create a secondary bubble around the heliosphere known as the heliosheath, which is filled with heated, slower solar wind. The interstellar medium, the matter that fills the local region of our galaxy, is forced to flow around the heliosphere. The heliosphere is the region of space under the influence of our sun. As the solar wind flows from the sun, it creates a bubble in space known as the "heliosphere" around our solar system. ![]()
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