Sounds like a simple question, right? Drawing the line between living and not living can be rather difficult sometimes. Life, as we know it, has many facets, and identifying characteristics of life is important when searching for clues about life on other planets and moons.

Is This Alive?

Visitors can test their own skill at identifying what is alive by examining a series of objects and simply selecting "Yes" or "No." Once a choice is made, a small explanation indicates if they made the correct choice.

What Is Alive Video

This video features a researcher asking children the essential questions about what makes up "life." Scientists also weigh in on what they look for when identifying "life." Some of the answers may be surprising.

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