4 years, 5 months ago

Voyager missions find sharp increase in density of space beyond our solar system

NASA’s spacecraft Voyager 2 has reported a significant increase in the density of space outside the solar system. While Voyager 1 had entered interstellar space in 2012, Voyager 2 had finally crossed the boundary that marks the end of the solar system and beginning of outer space in November 2018. While inside the solar system, the solar wind has an average proton and electron density of 3 to 10 particles per cubic centimetre, the density of the wind keeps getting fainter as one goes away from the Sun. Voyager 1 detected a plasma density of 0.055 electrons per cubic centimetres after crossing the heliopause in 2012.

Firstpost
Space Solar System Voyager 2 Voyager Density Voyager 1 Cubic Centimetre Interstellar Space
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