2: Alien Worlds: The Search for Second Earth | Universe

Professor Brian Cox questions whether we are alone in the universe. There might be more planets than stars in our galaxy - but will we find a second Earth?

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More episodes from this series

1: The Sun: God Star | Universe

1: The Sun: God Star | Universe

BBC Two | 2021 | 59'10''

Since the first star lit up the universe, they have been engines of creation. Professor Brian Cox reveals how, ultimately, stars brought life...

2: Alien Worlds: The Search for Second Earth | Universe

2: Alien Worlds: The Search for Second Earth | Universe

BBC Two | 2021 | 58'48''

Professor Brian Cox questions whether we are alone in the universe. There might be more planets than stars in our gal...

3: The Milky Way: Island of Light | Universe

3: The Milky Way: Island of Light | Universe

BBC Two | 2021 | 59'04''

A space mission discovers the dramatic history of the Milky Way. Professor Brian Cox reveals how our galaxy endured multiple col...

4: Black Holes: Heart of Darkness | Universe

4: Black Holes: Heart of Darkness | Universe

BBC Two | 2021 | 58'55''

Professor Brian Cox journeys into a supermassive black hole - a monster that can destroy worlds and stop time, and which is forc...

5: The Big Bang: Before the Dawn | Universe

5: The Big Bang: Before the Dawn | Universe

BBC Two | 2021 | 59'01''

It's the ultimate question: why are we here? Brian Cox explores how cutting-edge space missions take us back 13.8 billion years t...
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