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Brian Cox's Adventures in Space and Time Series 1 Episodes

    What Is Time?

    4/4 Brian explores one of the greatest mysteries in physics today 鈥� what is time?

    What Is Gravity?

    3/4 Brian takes a fresh look at gravity and the astonishing things it tells us.

    Aliens: Are We Alone?

    2/4 Brian Cox looks at our attempts to discover whether we are alone in the universe.

    Space: How Far Can We Go?

    1/4 Brian reflects on our amazing feats of space exploration and asks, just how far can we go?