Season 7

    Video thumbnail: It's Okay to Be Smart Why Do We Get Dizzy (…and Astronauts Don’t?)

    It's Okay to Be Smart

    Why Do We Get Dizzy (…and Astronauts Don’t?)

    We’ve all gotten dizzy before… but have you ever gotten WEIRD DIZZY?

    Why Do We Get Dizzy (…and Astronauts Don’t?)

    Video thumbnail: It's Okay to Be Smart The Mystery of the World’s Greatest Butterfly Migration

    It's Okay to Be Smart

    The Mystery of the World’s Greatest Butterfly Migration

    The monarch butterfly migration is one of nature’s greatest events.

    The Mystery of the World’s Greatest Butterfly Migration

    Video thumbnail: It's Okay to Be Smart How to be Crushed by the Atmosphere!

    It's Okay to Be Smart

    How to be Crushed by the Atmosphere!

    Air. I bet you never even notice that it’s there.

    How to be Crushed by the Atmosphere!

    Video thumbnail: It's Okay to Be Smart Why Are So Many People Allergic To Food?

    It's Okay to Be Smart

    Why Are So Many People Allergic To Food?

    Why Are So Many People Allergic To Food?

    Why Are So Many People Allergic To Food?

    Video thumbnail: It's Okay to Be Smart Where On Earth Do You Weigh The Least?

    It's Okay to Be Smart

    Where On Earth Do You Weigh The Least?

    This video is all about the difference between mass and weight.

    Where On Earth Do You Weigh The Least?

    Video thumbnail: It's Okay to Be Smart Are You Afraid of Holes?

    It's Okay to Be Smart

    Are You Afraid of Holes?

    Are You Afraid of Holes?

    Are You Afraid of Holes?

    Video thumbnail: It's Okay to Be Smart The Impossible Hugeness of Deep Time

    It's Okay to Be Smart

    The Impossible Hugeness of Deep Time

    Humans have a hard time with really big numbers, especially when it comes to DEEP TIME.

    The Impossible Hugeness of Deep Time

    Video thumbnail: It's Okay to Be Smart Is There Life on Earth

    It's Okay to Be Smart

    Is There Life on Earth

    If we lived light years from Earth, how would we know there’s life here?

    Is There Life on Earth