Stars are born from a kind of primal soup known as the interstellar medium.

恒星是由一种称为星际介质的“原汤”形成的。

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The shock acts as a searchlight by revealing the structure of the interstellar medium.

冲击波能揭示出星际介质的结构，扮演着探照灯的角色。

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Pulssar signal will be scattered as it passes through the Interstellar medium, what is called dispersion.

来自脉冲星的射电辐射在传播过程中会与星际间介质中的自由电子相互作用，发生色散现象。

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He notes that should produce radiation capable of ionizing the helium contained in the interstellar medium.

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"The interesting thing is that the protons don't get accelerated in the supernova explosion itself, but they get accelerated in what we call the remnant - the shockwave that is created in the explosion and then moves away through the interstellar medium, " said Dr Funk.

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He chose this because the supernova that created it blew a giant bubble, known as the Vela nebula, out of the surrounding interstellar medium, and that bubble is big enough to stand in for the infinite sheet of gas.

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