1.  In the observed frequency range, no other molecular or recombination line has been detected so far in interstellar space.

2.  ...interstellar space.

3.  Now the curious thing was that if you looked at the early atmosphere, the molecules in that were the molecules that we expected to see in interstellar space.

4.  Astronomers will also try to verify existence of an abundance of primordial hydrogen and helium gas scattered throughout interstellar space.

5.  Astronomers are especially surprised by the variety of colorful patterns spun into interstellar space by the ejected gases illumined by the ultraviolet light from the dying stars.

6.  Carbon, silicon and other elements prevalent on Earth were forged from lighter elements when early stars exploded and cast them into interstellar space.

7.  If the ultraviolet preferentially decomposes right-handed amino acids floating through interstellar space, this would leave an excess of left-handed ones.

8.  It suggests that cometary ices are identical to those of deep interstellar space and that both bear in their crystals the precursors of life.

9.  More recently, he developed a technique for studying low-speed collisions between charged molecules and electrons, mimicking chemical processes that occur in interstellar space.

10.  Most astronomers presumed, correctly, that most radio noise was generated by hot clouds of gas floating in interstellar space, but they also detected puzzling bright spots.