### interstellar

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interstellar 星际的

inter-,在内，在中间，相互，stellar,星际的，星球的。

1620s, "situated between the stars," from inter- + stellar.
1. The real problem of interstellar communication does not concern technology.

2. Which kind of signal is most promising for interstellar contact?

3. Fluorescent destruction occurs about once for every ten interstellar ultraviolet photons absorbed.

4. We can rule out interstellar rockets, because they are far too slow.

5. These elements become part of the interstellar gas and dust.