Hidden Worlds

Theoretical physicist Lisa Randall believes there are more dimensions to space – possibly 13 more — than the three we experience. She’s faced the challenge of describing a world that no one can see. Produced by Sarah Lilley.

Theoretical physicist Lisa Randall believes there are more dimensions to space – possibly 13 more — than the three we experience. She’s faced the challenge of describing a world that no one can see. Produced by Sarah Lilley.