“interstellar matter”簡單造句，interstellar matter造句子

Elliptical galaxies contain many older stars, up to one trillion, but little dust and other interstellar matter.

Using recent experimental results, we calculate the antiproton flux which is produced by the collisions of cosmic rays with the interstellar matter.

Molecular clouds play an integral role in the prestellar evolutionary sequence of interstellar matter.

We observe in the galaxy much larger, denser, and more massive aggregates of cold interstellar matter.