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Can We Time Travel?

Can We Time Travel?

Season 1 Episode 1
54:40
Are We Alone?

Are We Alone?

Season 1 Episode 2
54:41
Why Are We Here?

Why Are We Here?

Season 1 Episode 3
54:41
Where Did the Universe Come From?

Where Did the Universe Come From?

Season 1 Episode 4
54:41
What Are We?

What Are We?

Season 1 Episode 5
54:41
Where Are We?

Where Are We?

Season 1 Episode 6
54:11
Episode 5: The Calling

The Calling

Season 4 Episode 5
53:05
When Whales Could Walk

When Whales Could Walk

Season 51 Episode 1
53:31
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Genius by Stephen Hawking

Smartphone and Tablet Models of the Galaxies

The volunteers tackle their next challenge: If we could fit our galaxy on a smart phone and Andromeda on a tablet, how far apart would they be? They work out how far away the two galaxies are from each other with some simple math and can visually see how far the nearest galaxy is to our Milky Way.