Earth is the only planet we know of that can support life. What makes Earth habitable? Could there be life on other planets that we've yet to discover? What are signs of life that scientists are looking for in space? These short videos below featuring Dr. Karin Öberg of Harvard University begin to answer these questions.
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What does a planet need to support life? How similar to Earth would it have to be? Watch below to learn.
What molecules are needed in order for life to begin?
Where did water come from? Where do nitriles come from? Watch below to learn.
How do the building blocks of life become living organisms? Was the origin of life a natural process? Watch below to learn.
Watch more cosmology videos.