In which part of the Milky Way would you find little or no neutral hydrogen,no current star formation,and stars that are older than 10 billion years?

Question

Quizplus · Accepted Answer

The halo is the roughly spherical region surrounding the Milky Way's disk and bulge. It contains very little neutral hydrogen gas and no current star formation, but does contain many old stars that are more than 10 billion years old. The disk, on the other hand, contains most of the neutral hydrogen gas and active star formation in the Milky Way, while the galactic center is a region of high star formation and activity. The solar neighborhood refers to the specific area around our Sun within the Milky Way, so it is not the best choice for this question.

In Which Part of the Milky Way Would You Find