Helium focusing cone
A helium focusing cone is a concentration of helium atoms that has passed through the Sun's heliosphere and is concentrated in a conical region on the opposite side from where the particles entered.
A helium focusing cone is a concentration of helium atoms that has passed through the Sun's heliosphere and is concentrated in a conical region on the opposite side from where the particles entered.
A helium focusing cone is a concentration of helium atoms that has passed through the Sun's heliosphere and is concentrated in a conical region on the opposite side from where the particles entered.
Source: Wikipedia "Helium focusing cone" · CC BY-SA 4.0
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