Earth Story: Michelle Selvans

What forces creted the Earth? What do the Grand Canyon, the world's tallest waterfall and the Sahara have in common? Getting up close and personal with the world's great natural wonders gives scientists unique insights into the colossal forces that created the whole planet.

This stunning high-definition movie will serve as the springboard for a lively discussion about the science behind the beauty and wonder of nature.

Michelle Selvans, a graduate student in geology and planetary sciences at Caltech, will introduce the film and guide the post-screening discussion.