Join Steve Backshall in uncharted territory to uncover the world’s last unknown places.
Watch on the Free PBS App
PBS KIDS Shop
Featured on Shop
Use one of the services below to sign in to PBS:
You've just tried to add this video to My List. But first, we need you to sign in to PBS using one of the services below.
You've just tried to add this show to My List. But first, we need you to sign in to PBS using one of the services below.
Providing Support for PBS.org
Learn More about PBS online sponsorship
Genius by Stephen HawkingWhere Are We?
Genius by Stephen Hawking
Where Are We?
Can three volunteers to measure the solar system and universe to find out where we are?
Preview: Ep6 | 30s
Share this video:
Share this video on FacebookFacebookShare this video on TwitterTwitter
How Far Apart Are the Moon and the Earth?
Demonstration finding the distance between the moon and the Earth.
Clip: Ep6 | 2m 11s
The Earth rotates, and where you are changes how you see the universe.
Clip: Ep6 | 50s
Smartphone and Tablet Models of the Galaxies
Using smartphones and tablets to measure how far apart the Milky Way is from Andromeda.
Clip: Ep6 | 2m 2s
Support for PBS.org provided by: