Voyager Probes Passed into Heliopause - 90,000 Degree Wall
In 2018, both Voyager probes (Voyager 1 and Voyager 2) passed from the edge of the Heliosphere to the Heliopause.
The edge of our solar system has numerous definitions, with one being the end of the influence of the Sun's solar wind. The Heliosphere is the region around the solar system influenced by the solar wind of charged particles from our Sun. The Heliopause is the boundary between the Heliosphere and space, which is the boundary of our solar system itself. This region is filled with fast-moving particles that have been measured at up to 90,000 degrees Fahrenheit.
The probes survived the Heliopause due to the relative vacuum of space. Particles measured up to 90,000 degrees Fahrenheit but neither probe encountered particles that would have exposed them to the incredible heat measured. Heat is the speed of molecules in a medium and not the same as taking the internal temperature of a hot item.
The Voyager probes have gone beyond our solar system, and are the first man-made objects to do so. The probes were launched in 1977 and continue to travel and operate and are over 15-billion miles from earth. It is amazing that they continue to provide us with information about the Universe after so many years.
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