Josh & Chuck

As far as we know life evolved once in the universe – here on Earth in the form of life as we know it. Could life have originated in other conditions with different raw materials? If so, we may be sharing the planet with lifeforms we don’t recognize yet.See omnystudio.com/listener for privacy information.

Life on Earth may not be the only form of life in the universe, as other conditions could have led to the evolution of unfamiliar lifeforms.

The Shadow Biosphere: Is There Other Life on Earth?