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When looking for molecular hydrogen, astronomers actually look for
Emerging Adulthood
A stage of development from late teens through twenties, marked by exploration and self-discovery.
Social Clock
A timetable based on social norms for age-related life events such as occupational entry, marriage, parenthood, and retirement.
Normative Life Events
Typical or expected milestones and experiences that occur in an individual's life, such as starting school, marriage, or retirement.
Residency
The period of specialized medical training that a doctor undergoes after completing medical school, or the act of living in a particular place.
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